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Transcript of Steel Pipes Tubes
CONTENTS
02 Company Profile & Brief History
04 Dongbu Steel factory
06 Manufacturing Process
08 Standard Chart
12 ERW Steel Pipes
14 SPIRAL Welded Steel Pipes
16 Carbon steel pipes for general structural purposes
18 Steel Pipes Piles
24 Steel pipe Sheet Piles
30 API
36 Roll Bending Steel Pipes
38 Applications
40 Approved & Authorized specifications
STEEL PIPES & TUBESSTEEL PIPES & TUBES
Dongbu Steel Pipes & Tubes
History
1958. 08Established in Yang-pyung dong,Seoul, Korea
1961. 07Steel Tube started
1973. 03Completion of Welded LightH-Beam Plant
1978. 08Completion of ERW Steel PipePlant
1982. 10Official corporate name changefrom IL-SHIN Steel Co. to DongjinSteel Co. official corporatename change from Dong-jin SteelCo. to Dongbu Steel
1985. 01Technology Research Centerestablished
1991. 09Spiral Steel Pipe Pipe Workscompleted
1994. 10Pre-Engineered Buildingsystem(PEB)started
1995. 06Operation of ERW STS steel pipesdeveloped
1995. 07PEB Works begins
As the pioneer to introduce steel pipes to Korea in 1958, Dongbu Steel has become one of Korea's leading steel makers. Our
track record will show that the company's success is the result of using only state-of-the-art equipment; possessing a wealth
of industry know-how; and maintaining a high level of technical expertise.
Our priorities are simple. Dongbu Steel is wholly customer-oriented. We are devoted to continuously developing new technology
that exceeds our clients' expectations. Because our customers come first, we understand the importance of listening and responding.
We regularly conduct customer satisfaction surveys and quality assessments.
Recognized as a leading blue-chip company in the steel industry, our investors are guaranteed high value-added ROI. Through
pro-active management reform, our employees enjoy a workplace that emphasizes open communication and professional
development. We are committed to protecting the environment, strictly adhering to green management policies.
Our vision is clear. In the 21st century, Dongbu Steel will become the leading steel product provider. To do this, we will
continue to build our three core areas - client satisfaction through product diversification; technological innovation to ensure
high value-added profitability; and the globalization of our workforce through extensive international management training.
It is our sincere hope that you will browse through the pages of Dongbu Steel's website and learn about the valuable role our
company plays as a leader in the world's steel industry.
DONGBU STEEL WILL MAKE IT COME TRUE
Digital revolution and biotechnology cannot exist
without core materials. With our innovative steel technology and
new materials, we seek to build lives of abundance.
We will be the world’s leading provider of comprehensive materials.
Our goal is to invest into research and development to ensure
hign returns for our valued investors.
We are part of your life-nowand in the future
2000. 12$500 million invested into Export Tower
2001. 126 Sigma launched
2002. 08ISO 9001,QS9000,ISO/TS16949Quality Certification acuired
2004. 02Incheon Works Steel Gallery opened
2005. 09$900 million invested into Export Tower
2006. 07CRM Launched
2007. 01Established "Steel Academy"
2008. 03ERW, SPIRAL NDT Inspection FacilityRationalization Completed
2 3
Incheon Works
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
Incheon Works ( 2,320,000Ton/Year )
- Pipe (240,000)
- Pre-coated Metal (490,000)
- Galvanized Steel (640,000)
- Tin Flate (190,000)
- Cold Rolled Steel (700,000)
- H-Beam (60,000)
The Incheon Works division of Dongbu Steel recognizes the importance of Protecting our environment and the
safety precautions that have to be taken. As a result, Incheon Works was first steel works to receive honors as
an Environment-friendly factory in Korea. In addition to promoting environment-Friendly and safe operations,
Incheon Works acquired the ISO 14001 and KOSHA 2000 program certificates.
Incheon Works is a comfortable and secure green factory that contributes to the local community.
4 5
Main Products
Steel pipes forordinary piping
Arc Welded Steel Pipe
Steel pipes forpressure service
Steel pipes for Fuel Gas Piping
Steel pipes for general
Steel Pipe Piles
Steel pipe sheet piles
Line pipeCasing and Tubing
Spec. No.Classification Application
KS D 3507, JIS G 3452, ASTM A135 GrA,ASTM A54 ArA, BS 1387
KS D 3583
KS D 3562, JIS G 3454,ASTM A53 GrB, ASTM A135 GrB
KS D 3631
KS D 3566, JIS G 3444,
ASTM A500, BS 1775
KS F 4602, JIS A 5525, ASTM A252
KS F 4605, JIS A 5530
API 5L
API 5CT
Water supply and sewage, industrial water, irrigation,oil & gas supply, sprinkler,fire hydrant, ship piping etc.
Water service pipe, Polypropylene/FBE coated pipe
For pressure service at temperature not exceeding 350˚C
Fuel and gas piping
Building, bridge, harbor, steel tower, electric light post,scaffold, etc.
building piers, banks, estuaries, civil engineering projects(building bridges, roads, rail roads, and soil sheet piles),foundations for heavy machines and furnaces. More recentapplications include man-made islands, petroleum and LNG storage sites, marine airports, fish husbandry.
Oil or natural gas piping
Oil well casing and tubing
Available Size
Manufacturing Process
22212019181716151413121110987654321
Thickness
22212019181716151413121110987654321
Thickness
1,016 1,066.8 1,100 1,117.6 1,200 1,219.2 1,300 1,320.8 1,400 1,422.4 1,500 1,524 1,600 1,625.6 1,700.0 1,727.0 1,800.0 1,828.0 1,900.0 1,930.4 2,000.0 2,032 2,100 2,133.6 2,200 2,235.2 2,300 2,336.8 2,400 2,438.4 2,500 2,540 2,600 2,641.6
SPIRAL
Forming
Welding
Uncoiler
Cross WelderEdge Milling
Welder
Cut-off M/C
NDT. Hydrostatic testing & Expanding
Sizing Mill
Cut-off M/C
Ultra Sonic Test
Hydrostatic testing & E/F
Uncoiler
ERW Steel Pipes(Outside diameter) 13.8mm~508mm
ERW
Spiral welded Steel Pipes(Outside diameter) 406.4mm~2641.6mm
SPIRAL
Dongbu Steel
Pipe & Steel Structure
89.1 101.6 114.313.8 50.8 76.2
E.R.W
E.R.W
SPIRAL
SPIRAL
133 165.2 216.5 267.4 318.5 355.6 406.4 457.2 508.0 558.8 600.0 609.6 700.0 711.2 800.0 812.8 900.0 914.4 1000.0
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
Classification
ERW
SPIRAL NO.1
SPIRAL NO.2
Outside diameter(mm)
13.8 ~ 508
406.4 ~ 2438.4
609.6 ~ 2641.6
Thickness(mm)
0.8 - 14.5
6 - 22
6 - 22
6 7
Standard Specification Application
Carbon SteelPipes
for GeneralStructuralPurposes
Steel Pipe Piles
Steel pipe sheetpiles
Chemical Composition
KS D 3566
JIS G 3444
KS F 4602
JIS A 5525
KS F 4605
JIS A 5530
STK 290
STK 400
STK 500
STK 490
STK 540
SKK 400
SKK 490
STKT 590
SKY400
SKT490
SPP
SPPS 38
SPPS 42
SPW 400
SPPG
-
0.25
0.30
0.25
0.3
-
0.35
0.35
-
0.35
-
0.30 ~ 0.90
0.30 ~ 1.00
-
0.95
0.040
0.040
0.040
0.040
0.4
0.040
0.040
0.040
0.040
0.035
-
-
-
-
-
KS D 3507JIS G 3452
KS D 3562JIS G 3454
KS D 3583
KS D 3631
C
(Max)
-
0.25
0.30
0.18
0.23
0.25
0.18
0.12
0.25
0.18
-
-
0.35
0.55
0.55
-
0.55
0.40
-
0.55
-
-
0.30 ~ 1.00
1.50
1.50
-
1.50
2.00
-
1.50
0.050
0.040
0.040
0.040
0.040
0.040
0.040
0.030
0.040
0.040
0.050
0.040
0.040
0.040
0.040
0.040
0.040
0.030
0.040
0.040
30kg/
41kg/
51kg/
50kg/
55kg/
41kg/
50kg/
60kg/
41kg/
50kg/
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.90
1.20
1.30
1.40
1.40
1.40
1.40
1.45
1.65
-
-
-
-
-
-
-
-
-
0.22
0.26
0.26
0.26
0.26
0.26
0.26
0.26
0.26
A
B
X42
X46
X52
X56
X60
X65
X70
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.15
-
-
Si
(Max)
Mn
(Max)
P
(Max)
S
(Max)
Nb+V
(Max)
Carbon Steel Sheetfor Ordinary Piping
Carbon SteelPipes
for PressureService
Arc Welded SteelPipes
Fuel Gas Piping
API 5L Line Pipe
Physical Requirement
Tensile
Strength
(Min)
Elongation, Min(%)
Specimen(%)
Other Tests
and
Inspections
48,000psi
33.7kg/
60,000psi
42.2kg/
60,000psi
42.2kg/
63,000psi
44.3kg/
66,000psi
46.4kg/
71,000psi
49.9kg/
75,000psi
52.7kg/
77,000psi
54.1kg/
82,000psi
57.7kg/
e = 62,500 x
(A 0.2 ÷ U 0.9)
-
-
-
-
(Non-destructivetest )Each pipe shall beinspected byultrasonic orelectromagneticmethods.(Heat treatment)Weld seam shall beheat treated afterwelding to aminimumtemperature of1000 ° F (538 Г), orprocessedin such a mannerthat no untemperedmartensiteremains.
Weld Portion:
H = 2/3D
The Other Side of
Weld portion:
H = 1/3D
The test shall be
made alternately
with
the weld at 0 deg.
And at 90 deg.
From the line
of direction of
force.
H = Distance
between Exterior
Surfaces
Flattening
H = 2/3D
-
H = 2/3D
Weld portion:H=2/3D
The other sides ofweld protion
:H=1/3D
H = 2/3D
H = 2/3D
H = 7/8D
H = 7/8D
H = 7/8D
H = 2/3D
H = 7/8D
H = 3/4D
H = 2/3D
H = 7/8D
90°x6D
90°x6D
90°x6D
90°x6D
90°x6D
-
-
-
-
-
30
23
15
23
20
23
23
20
23
23
25
18
10
19
16
18
18
16
18
18
(Angle of
Bend)
(Inner
Bend Test
90°x6D
90°x6D
-
90°x6D
Specified respectively in size
and grade.
P = D/2St except that test
pressure shall be limited to
2500 psi for size 3 1/2 in. and
smaller, and to 2800 psi for
size larger than 3 1/2 in.
S = Grade A: 18,000 (Standrad),
22,500(Alternative)
Grade B: 21,000(Standrad),
26,250(Alternative)
Specified respectively in size and
grade.
P = 2St/D , or 3,000 ,
Whichever is the smaller,
P = Test Pressure(psi)
S= Allowable Fiber Stress(psi)
t or a = Wall Thickness
Hydrostatic Test
P = 25
P = 25
P = 25 OR NDT
-
-
-
-
-
-
-
-
-
-
-
-
30
30
25
15 - 18
30
30kg/
38kg/
42kg/
41kg/
21kg/
24kg/
36kg/
32kg/
40kg/
24kg/
32kg/
45kg/
24kg/
32kg/
30,000psi
21.1kg/
35,000psi
24.6kg/
42,000psi
29.5kg/
46,000psi
32.3kg/
52,000psi
39.6kg/
56,000psi
39.2kg/
60,000psi
42.2kg/
65,000psi
45.7kg/
70,000psi
49.2kg/
-
22kg/
25kg/
23kg/
34kg/
25
25
20
18
25
SCH.No
Test pressure
OR NDT
Unit=kgf/
No.11, No.12 Longitudinal Direction
No.5 Transverse Direction
Standard Chart
Dongbu Steel
Pipe & Steel Structure
standard Alternative0.60 x Y.P.0.75 x Y.P.0.85 x Y.P.0.90 x Y.P.
O75 x Y.P.---
41/2 and under65/8 and 85/8103/4 to 1820 and over
D
S
Yield
Strength
(Min)
e= Min. elongation in 2 in.
in percent rounded to
nearest 1/2%
A : Cross sectional area
on the tensile test
specimen(in.2 )
U : Specifies tensile
strength(psi)
*6
(Non-
destructive
test )*7(heattreatment)
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
8 9
Physical Requirement
Yield
Strength
(Min)
Elongation, Min(%)
Specimen(%)
Other Tests
and
inspections
30,000psi
21.1kg/
35,000psi
24.6kg/
30,000psi
21.1kg/
35,000psi
24.6kg/
35
56T+17.50
30
48T+15.00
25
24
22
40,000psi
28.1kg/
35,0000-80,000psi
24.6kg/
80,000-110,000psi
29.5kg/
56.2-77.3kg/
33,000psi
23.2kg/
50,000psi
29.5kg/
50,000psi
32.4kg/
25
e = 56t + 17.50
23
e = 61t = 12.00
-
H = Distance between
Exterior Surfaces
D= Outside Diameter
Flattening
D/t 16H = 0.65DD/t 16H =D/t 0.83-0.0206 D/t
D/t 16H = 0.65D3.93D/t 16H=D 0.98-0.0206D/t3.93D/t 16H=D 1.104-0.0206D/t
9 D/t 28H=D 1.074-0.0194D/t
(Angle of Bend)
(Inner Radius of Bend)
Bend Test
Apply for standard weight and extra strongpipe of NB_2" Weldportion:H=2/3DThe Other Side of Weldportion:H=1/3D The testshall be made alternately with the weld at 9 deg. And at 90 deg.
Weld Portion: H = 2/3DThe Other Side of Weldportion: H=1/3D The test shall bemade alternately with the weld at 9 deg. And at 90 deg.
Apply for NB 2"
Ungalvanized Tubes:
180° /6D
Galvanized Tubes: 90° x 8D
*7( Non-destructivetest )(Heat treatment )
(Weight of Zinc Coating
Test)
immersion in a copper
sulpate solution: 4 dips
-
Standard Specification
Chemical Composition
ASTM A53
ASTM A135
ASTM A500
BS 3601
P = Test Pressure(psi)
S= Allowable Fiber Stress(psi)
t or a = Wall Thickness
Hydrostatic Test
Apply for NB = 2"90 ° x 6DWhen ordered forclose coiling180 ° x 4D
Specified respective in size and
grade.
Note: The maximun pressure
NB 3° P = 2,500psi
NB 3° P = 2,800psi
P = 2St/D Max, 2,500psi
S : Grade A : 16,000-18,000psi
Grade B : 20,000-22,000psi
(But in no case shall the stressproduced exceed 80% of the specified yield point.)
e = 62,500 xA 0.2 ÷ U 0.9
e = 62,500 xA 0.2 ÷ U 0.9
195
215
235
Weld Portion:
H = 2/3D
The Other Side of
Weld portion:
H=1/3D
Weld Portion:
H = 0.66D
The Other Side of
Weld portion:
H = 0.33D
P = 20St/D bar
S = 80% of the Specified
Minimum Lower Yield
Strength (N/mm2)
Apply for NB _ 2"Weld Portion: H = 2/3DThe Other Side of Weld portion:H=1/3D
20 P = 53kg/-
Tensile
Strength
(Min)
60,000psi
42.2kg/
75,000psi
52.7kg/
95,000psi
66.8kg/
10,000psi
70.3kg/
48,000psi
33.7kg/
60,000psi
42.2kg/
48,000psi
33.7kg/
60,000psi
42.2kg/
45,000psi
31.6kg/
58,000psi
40.8kg/
62,000psi
43.6kg/
20-440
360-480
410-530
21.30ton/in²
66.8kg/
50,000psi
60,000psi
66,000psi
30,000psi
35,000psi
40,000psi
30 E=48t+15.00
25 E=48t+15.00
20 E=32t+10.00
- - - -
-
-
- -
P = 2St/D, or 3,000 psi,
Whichever is the smaller
S = 9 5/8 and under 0.80 x Y.P.
10 3/4 and over 0.60 x Y.P.
P = 2St/D, or 10,000 psi,
Whichever is
the smaller 0.8 x Y.P.
Application
Carbon Steel
Pipes
for Ordinary
Piping
Steel Pipe for
Conveying Liquid
Gas, or Vapor
Steel Pipe
and Tubes for
Pressure Uses
Carbon Steel
Structural Tubing
in Round
H-40
J-55
K-55
N-80
I
II
III
L
M
H
C
(Max)
Si
(Max)Others
Mn
(Max)
P
(Max)
S
(Max)
API 5CTCasing and
Tubing- -- - 0.03 0.03
A
B
0.25
0.30
-
-
-
-
0.95
1.20
0.05
0.05
0.06
0.06
ASTM A252 Steel Pipe Piles - -- - 0.050 -
BS 1387
Steel Pipe
for Ordinary
Uses
- -- - 0.060 0.060
-
-
-
A
B
C
0.26
0.26
0.23
-
-
-
-
-
1.35
0.04
0.04
0.04
0.05
0.05
0.05
ERW 320
ERW360
ERW410
0.16
0.17
0.21
-
-
-
-
0.35
0.35
0.030-0.070
0.040-0.080
0.040-1.20
0.050
0.050
0.050
0.050
0.050
0.050
A
B
0.25
0.30
-
-
-
-
0.95
1.20
0.050
0.050
0.06
0.06
Dongbu Steel
Pipe & Steel Structure
Standard Chart
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
( Non-destructive test )(Weight of ZincCoating Test)Weight of ZincCoating.Min. 1.8 oz/ft
An alternative to the hydrostatic test,non-destructive testmay be applied(3/4"- 5",Sch. 10 )
-
*7
(Heat
treatment)
-
*7(Heat
treatment)
*1: For pipe less than 20 in. OD with any wall thickness, and for pipe 20in OD and lager with wall thickness greater than 0.375 in.
*2: For pipe 20 in OD and lager with wall thickness 0.375 in less.
*3: Either Columbium or Vanadium,Titanium or a combination thereof, shall be used at the discretion of the manufacture
*4: Either Columbium or Vanadium or a combination of both shall be used at the discretion of the manufacture
*5: Applies to casting only
*6: For piee 23/8 in. and lager in outside diameter,each pipe shall be inspected by ultrasonic or electromagnetic methods.
*7: Weld seam shall be heat-treated after welding to monimum temperature of 1000°F(538°C), or proceseed in such a mananer that no untempered martensite remains
10 11
_ Steel PipesERW
125150175200225250300350400450500
56789101214161820
139.8165.2190.7216.5241.8267.4318.5355.6406.4457.2508.0
±0.8±0.8±0.9±1.0±1.2±1.3±1.5
----
±1%±1%±1%±1%±1%±1%±1%±1%±1%±1%±1%
4.854.855.35.856.26.407.007.607.97.97.9
-12.5% max
16.119.224.230.436.041.253.865.277.687.597.4
Type of pip Outside diameter(mm)
Permissiblevariations in
thickness
Weight not including soketkg/m
Permissible variations
Taper screw pipe other pipe
Thickness(mm)
(Korean industrial standard dimensions specifications)
A B
KS D 3507(JIS G 3452) Carbon Steel Pipes for Ordinary Piping
5.1
5.5
6.4
6.4
6.4
7.9
7.9
7.9
9.5
9.5
9.5
12.7
16.9
21.7
33.1
41.2
49.3
67.7
77.6
87.5
117
129
141
203
-
-
7
7.8
8.4
9.5
9.5
11.1
12.7
12.7
14.3
-
-
-
36.1
49.9
64.2
81.1
93
122
155
171
228
-
6.6
7.1
8.2
9.3
10.3
11.1
12.7
14.3
15.1
15.9
-
-
21.7
27.7
42.1
59.2
78.3
94.3
123
156
184
213
-
-
8.1
9.3
10.3
12.7
14.3
15.1
16.7
19.0
20.6
-
-
-
26.3
35.8
52.3
79.8
107
127
16
205
248
-
-
-
(Korean industrial standard dimensions specifications)KS D 3562(JIS G 3454) Carbon Steel Pipes for Pressure Service
Type of pipedia
139.8
165.2
216.3
267.4
318.5
355.6
406.4
457.2
508.0
558.8
609.6
660.4
outsidedia
meter(mm)
-
-
-
-
-
6.4
6.4
6.4
6.4
6.4
6.4
7.9
Thick ness(mm)
-
-
-
-
-
55.1
63.1
71.1
79.2
87.2
95.2
103
W(kg/m)
Thick ness(mm)
W(kg/m)
Thick ness(mm)
W(kg/m)
Thick ness(mm)
W(kg/m)
Thick ness(mm)
W(kg/m)
9.5
11.0
12.7
15.1
17.4
19.0
21.4
23.8
26.2
-
-
-
30.5
41.8
63.8
93.9
129
158
203
254
311
-
-
-
Thick ness(mm)
W(kg/m)
Permissible variations in outside diameter
Schedule 10 Schedule 20 Schedule 30 Schedule 40 Schedule 60 Schedule 80
125
150
200
250
300
350
400
450
500
550
600
650
A
5
6
8
10
12
14
16
18
20
22
24
26
B
Dongbu Steel produces pipes of outstanding quality. Our rigorousquality control combined with 40 years of accumulated know-howand technology, are contributors behind our top-quality products.
Excellent qualityThe high-frequency electricity-resistant welding method developed by the Thermatool Group of the
United States is used in the production of our ERW pipes. Thermatool's technology renders superb
weldability to our products. Customer preference for Dongbu Steel's ERW pipes over other available
products is attributed to its wide range of applications.
In order to enhance the ductility of the welded portion Dongbu Steelapplies seam annealing, which uses a high-frequency inductionheating procedure after the welding process.
Immaculate finish on welded sections
With production equipment designed based on our extensive experience, we produce a wide range of pipes with wall thickness ranging from extremely light to heavy from 1/4" to 20" (Ø13.8~508) in outside diameter
A wide range of production capabilities
Annealer
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
12 13
400
450
500
550
600
650
700
750
800
850
900
1000
1100
1200
1350
1500
1650
1800
2000
16
18
20
22
24
26
28
30
32
34
36
40
44
48
54
60
66
72
80
406.4
457.2
508.0
558.8
609.6
660.4
711.2
762.0
812.8
863.6
914.4
1016.0
1117.6
1219.2
1371.6
1524.6
1676.4
1828.8
2032.0
59.2
66.8
74.3
81.8
89.3
96.8
104
63.1
71.1
79.2
87.2
95.2
103
111
119
127
135
143
69.9
78.8
87.7
96.6
105
114
123
132
141
150
77.6
87.5
97.4
107
117
127
137
147
157
167
177
196
107
118
129
140
151
162
173
183
194
216
117
129
141
152
164
176
188
200
212
236
260
283
139
152
165
178
191
204
219
230
255
281
307
150
164
178
192
206
219
233
247
275
303
331
160
175
190
205
220
235
250
265
295
324
354
399
444
171
187
203
219
235
251
266
282
314
346
378
426
473
258
275
291
324
357
390
439
488
537
587
276
293
311
346
381
466
469
521
574
627
297
316
335
373
411
448
505
562
619
675
751
312
332
352
392
432
472
532
591
631
711
791
(Korean industrial standard dimensions specifications)
Type Diameter
outsidediameter( )
Thickness( )
A 15.915.11413.112.711.911.110.39.58.77.97.16.46B
1. The normal diameter of the pipe shall use A or B. If there is a need for the diameter to be represented by A or B, each figure
shall be followed by A or B, respectively.
2. The calculation of weight shall be done according to the following formula, setting 1 steel at 7.85kg. Based on KS A 0021
the digits of the figure shall be cut at the third digit of the significant number.
W=0.02466(D-t) W : pipe weight(kg/m) t : thickness of the pipe(mm) D : outside diameter of the pipe(mm)
3. Other figures shall abide by the agreement made by the ordering client and the manufacturer
Type Permissible varfation% Remarks
Outside
Thickness Normal diameter 450A or lower
Normal diameter 450A or lower
-12.5
-10
15
15
±0.5margin of error is appliedto the circumference
(General pipes:permissible variations in outside diameter and thickness)Arc Welded Steel Pipes (KS D 3583)
Dongbu Steel eatablished Spiral
No.1 , No 2 each at Incheon Works in 1991 and 1996.
Spiral welded Steel Pipes with outside diameter of
16”~104” 406.4-2641.6 mm and thickness 0f 6~22
mm are manufactured by SAW (Submerged Arc
Welding) Process and have distinctive spiral pattern
on welded portion.
SPIRAL Welded Steel Pipes
_ Welded Steel PipesSpiral
Cut Off Saw Welder
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
14 15
KS D 3566. JIS G 3444
2.0
2.0
2.3
2.3
2.3
2.5
2.3
2.5
2.8
3.2
2.3
3.2
4.0
2.8
3.2
4.0
2.8
3.2
3.2
4.0
5.0
3.2
3.5
4.5
3.6
4.0
4.5
6.0
4.5
5.0
6.0
7.1
4.5
5.3
6.0
7.0
8.24.5
5.8
6.07.08.0
8.2
6.0
6.67.0
8.0
9.0
9.36.0
6.98.0
9.0
10.3
6.4
7.9
9.0
9.5
12.0
12.7
21.7
27.2
34.0
42.7
48.6
60.5
76.3
89.1
101.6
114.3
139.8
165.2
190.7
216.3
267.4
318.5
355.6
0.972
1.24
1.41
1.80
2.29
2.48
2.63
2.84
3.16
3.58
3.30
4.52
5.57
5.08
5.77
7.13
5.96
6.78
7.76
9.63
11.9
8.77
9.58
12.2
12.1
13.4
15.0
19.8
17.8
19.8
23.6
27.3
20.7
24.2
27.3
31.7
36.9
23.530.1
31.1
36.1
41.1
42.138.7
42.4
45.051.2
57.3
59.2
46.2
53.061.3
68.7
78.3
55.1
67.7
76.981.1
102
107
1.238
1.583
1.799
2.291
2.919
3.157
3.345
3.621
4.029
4.654
4.205
5.760
7.100
6.465
7.349
9.085
7.591
8.636
9.892
12.26
15.17
11.17
12.18
15.52
15.40
17.07
19.13
25.22
22.72
25.16
30.01
35.26
26.32
30.87
34.82
40.40
47.01
29.94 38.36
39.61
46.03
52.35
53.6149.27
54.08
57.2665.19
73.06
75.41
58.91
67.5578.04
87.51
99.73
70.21
86.29
98.00103.3
129.5
136.8
0.607
1.26
1.41
2.89
5.97
6.40
8.99
9.65
10.6
11.8
17.8
23.7
28.5
43.7
49.2
59.5
70.7
79.8
120
146
177
172
187
234
357
394
438
566
734
808
952
110 X10
114 X10
133 X10
149 X10
171 X10
196 X10
168 X10213 X10
219 X10
252 X10
284 X10
291 X10421 X10
460 X10
489 X10549 X10
611 X10
629 X10
719 X10
820 X10941 X10
105 X10²
119 X10²
107 X10²
130 X10²
147 X10²155 X10²
191 X10²
201 X10²
0.560
0.930
1.03
1.70
2.80
3.00
3.70
3.97
4.36
4.86
5.90
7.84
9.41
11.5
12.9
15.6
15.9
17.9
23.6
24.8
34.9
3.02
32.7
41.0
51.1
56.3
62.7
80.9
88.9
97.8
115
134
120
139156
179
206
155
197
203
233263
269
315344
363
411
547
470452
515
591
659744
602
734
828
871
108 X10
110 X10
0.700
0.890
0.880
1.12
1.43
1.42
1.64
1.63
1.62
1.61
2.06
2.03
2.00
2.60
2.59
2.58
3.05
3.04
3.48
3.45
3.42
3.93
3.92
3.89
4.82
4.80
4.79
4.74
5.68
5.67
5.63
5.60
6.59
6.56
6.53
6.50
6.46
7.497.45
7.44
7.40
7.37
7.369.24
9.22
9.219.18
9.14
9.13
11.1
11.011.0
10.9
10.9
12.3
12.3
12.312.2
12.2
12.1
Remarks
(Korean industrial standard dimensions specifications) (Korean industrial standard dimensions specifications)
Thickness(mm)
Outside diameter(mm)
Weight(kg/m)
Sectional Area( )
Radius of Gyration( )
Moment of Inertia( )
Section Modulus( )
9
12
16
19
9
12
16
19
9.0
12
14
9.0
12.0
14.0
16.0
19.0
22.0
9.0
12.0
16.0
19.0
22.0
9.0
12.0
14.0
16.0
9.0
12.0
14.0
16.0
19.0
22.0
9.0
12.0
14.0
16.0
9.0
12.0
14.0
16.0
19.0
22.0
9.0
12.0
14.0
16.0
19.0
22.0
12.0
14.0
16.0
19.0
22.0
12.0
14.0
16.0
19.0
22.0
406.4
457.2
500
508.0
558.8
600
609.6
700
711.2
812.8
914.4
1016.0
88.2
117
154
182
99.5
132
174
205
109
144
168
111
147
171
194
229
264
122
162
214
253
291
131
174
202
230
133
177
206
234
277
319
153
204
237
270
156
207
241
274
324
374
178
237
276
314
372
429
267
311
354
420
484
297
346
395
467
539
112.4
148.7
196.2
231.2
126.7
167.8
221.8
261.6
138.8
184
213.8
141.1
187.0
217.3
247.3
291.9
335.9
155.5
206.1
272.8
322.2
371.0
167.1
221.7
257.7
293.6
169.8
225.3
262.0
298.4
352.5
406.1
195.4
259.4
301.7
343.8
198.5
263.6
306.6
349.4
413.2
476.3
227.3
301.9
351.3
400.5
473.8
546.6
340.2
396.0
451.6
534.5
616.5
378.5
440.7
502.7
595.1
687.0
222 X10²
289 X10²
374 X10²
435 X10²
318 X10²
416 X10²
540 X10²
629 X10²
418 X10²
548 X10²
632 X10²
439 X10²
575 X10²
663 X10²
749 X10²
874 X10²
994 X10²
588 X10²
771 X10²
101 X10³
118 X10³
134 X10³
730 X10²
958 X10²
111 X10³
125 X10³
766 X10²
101 X10³
116 X10³
132 X10³
154 X10³
176 X10³
117 X10³
154 X10³
178 X10³
201 X10³
122 X10³
161 X10³
186 X10³
211 X10³
248 X10³
283 X10³
184 X10³
242 X10³
280 X10³
318 X10³
373 X10³
428 X10³
346 X10³
401 X10³
456 X10³
536 X10³
614 X10³
477 X10³
553 X10³
628 X10³
740 X10³
849 X10³
109 X10
142 X10
184 X10
214 X10
140 X10
182 X10
236 X10
275 X10
167 X10
219 X10
253 X10
173 X10
226 X10
261 X10
295 X10
344 X10
391 X10
210 X10
276 X10
360 X10
421 X10
479 X10
243 X10
320 X10
369 X10
418 X10
251 X10
330 X10
381 X10
432 X10
505 X10
576 X10
333 X10
439 X10
507 X10
575 X10
344 X10
453 X10
524 X10
594 X10
696 X10
796 X10
452 X10
596 X10
690 X10
782 X10
919 X10
105 X10
758 X10
878 X10
997 X10
117 X10
134 X10
939 X10
109 X10
124 X10
146 X10
167 X10
14.1
14
13.8
13.7
15.8
15.7
15.6
15.5
17.4
17.3
17.2
17.6
17.5
17.5
17.4
17.3
17.2
19.4
19.3
19.2
19.1
19.0
20.9
20.8
20.7
20.7
21.2
21.1
21.1
21.0
20.9
20.8
24.4
24.3
24.3
24.2
24.8
24.7
24.7
24.6
24.5
24.4
28.4
28.3
28.2
28.2
28.1
28.0
31.9
31.8
31.8
31.7
31.5
35.5
35.4
35.4
35.2
35.2
Remarks
Thickness(mm)
Outside diameter(mm)
Weight(kg/m)
Sectional Area( )
Radius of Gyration( )
Moment of Inertia( )
Section Modulus( )
Dongbu Steel
Pipe & Steel Structure
_ Carbon steel pipes for general structural purposes
16 17
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
_ KS F 4602, JIS A 5525Steel Pipes Piles
1. Because of material's high intensity, the end of pipe's damage will reach the ground safely
even with the strong impact.
2. It's easy and firm to weld iron or bond steel materials to STEEL PIPE PILES' supper part.
3. Outside diameter and thickness are freely selected according to a steel material's load.
4. Length is freely selected according to a safe and firm depth of the ground.
5. The load of horizontal direction is strong and resisting power is high because of its high
bending intensity.
6. High Intensity and superior roundness, straightness make it reach to the target point of the
ground accurately.
7. Field use and welding is possible without no intensity change, and there's no short length
pipe loss.
8. Its weight is light and the risk of being damaged is low, therefore it's easy to handle during
transportation to destination.
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
18 19
Material and Construction
Components
Using direct heat treatment on the welded portion, residual stress is removedin order to prevent stress corrosion and fatigue as well as to improvethe impact strength of the welded portion
Used for civil engineering or construction projects including harbor, plant, tank,building, bridge, railway, steel tower, large structure
BodyType Content
SS. & SM(41/50 class) Materials including SPHT, API or of equivalent property
Compression strength:41__, Tensile strength:41__,One side allowable stress 1.6ton/_
Material
Mechanical property (Standard: SS41)
Strength comparison testafter welding (SS41 class)
Stress corrosion, fatigue andimpact Strength ofthe welded portion
Application
Maximum product lengthper a pipe
Bevel end:18m or less, Plain end:25m or less
One SidePerformance
Degree offreedom
Due to the variety of sizes (appearance, thickness), flexibility in designing aswell as strong bending resistance make SPSP ideal material for long piles
DirectionalityDisplays strength in non-directional horizontal force environments such asearthquakes. Strongest against buckling
Concreterehabilitation
Superior level of hardness and improved support capacity renderperformance similar to that of large diameter piles.
Partialrehabilitation
Steel plate welding rehabilitation and/or connection among piles of differentthickness by layer
Corrosion resistancepainting and treatment
Piles free of corrosion through low priced asphalt painting, zinc powderpainting, epoxy painting, and galvanized or electrolytic treatment
Rehabilitation
Friction PileWelding many spiral layers on the surface of pile, and improving friction withground using its cohesion.
Design and
construction
Construction
Measurement of thedepth about impact
Available for more than 60m of impact
Penetration abilitySuperior to H-steel piles or concrete piles due to its ability to dischargeearth and sand inside the pipe and to crush rocks in the tongue. Excellentpenetration ability in rough, rocky ground
On-site splice andrecovery of lossduring impact
Convenient weld splicing, able to recover the entire wasting in length thatoccurs during impact and use for piles of insufficient length.
Delivery and pilingConvenient for transportation, loading/unloading. Easy to carry by floatingon the water and easy to pile.
Recycling Pipes can be drawn and recycled if the production location changes.
Type Tensile strength Yield Elongation
Base metal 47.1 38.8 32.2
Welded portion 48.8 - -
Tongue and on-site splice Measurement and weight
RemarksWall
t
(mm)
6.9
10.3
6.4
7.9
11.1
9
10
11
12
9
10
11
12
9
10
11
12
13
14
9
10
11
12
13
14
9
10
11
12
13
14
15
16
9
10
11
12
13
14
15
16
9
10
11
12
13
14
15
16
318.5
355.6
400
406.4
500
508
600
609.6
700
Outside
D
(mm)
67.5
99.7
70.2
86.3
120.1
110.6
122.5
134.4
146.3
112.4
124.5
136.6
148.7
138.8
153.9
169
184
198.9
213.8
141.1
156.4
171.8
187
202.2
217.3
167.1
185.4
203.5
221.7
239.7
257.7
275.7
293.6
169.8
188.4
206.9
225.3
243.6
262
280.2
298.4
195.4
216.8
238.1
259.4
280.6
301.7
322.8
343.8
Cross Sectional
A
(cm2)
53
78.3
55.1
67.7
94.3
86.8
96.2
106
115
88.2
97.8
107
117
109
121
133
144
156
168
111
123
135
147
159
171
131
145
160
174
188
202
216
230
133
148
162
177
191
206
220
234
153
170
187
204
220
237
253
270
Weight
W
(kg/m)
11
10.9
12.4
12.3
12.2
13.8
13.8
13.8
13.7
14
14
14
14
17.4
17.3
17.3
17.3
17.2
17.2
17.6
17.6
17.6
17.5
17.5
17.5
20.9
20.9
20.8
20.8
20.8
20.7
20.7
20.7
21.2
21.2
21.2
21.1
21.1
21.1
21
21
24.4
24.4
24.4
24.3
24.3
24.3
24.2
24.2
Radius of Gyration
i (cm4)
1
1
1.12
1.12
1.12
1.26
1.26
1.26
1.26
1.28
1.28
1.28
1.28
1.57
1.57
1.57
1.57
1.57
1.57
1.6
1.6
1.6
1.6
1.6
1.6
1.88
1.88
1.88
1.88
1.88
1.88
1.88
1.88
1.92
1.92
1.92
1.92
1.92
1.92
1.92
1.92
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
Superficial AreaPer Meter
(m2/m)
820 x 102
119 x 102
107 x 102
130 x 102
178 x 102
211 x 102
233 x 102
254 x 102
276 x 102
222 x 102
245 x 102
267 x 102
289 x 102
418 x 102
462 x 102
505 x 102
548 x 102
590 x 102
635 x 102
439 x 102
485 x 102
531 x 102
575 x 102
620 x 102
663 x 102
730 x 102
807 x 102
883 x 102
958 x 102
103 x 103
111 x 103
118 x 103
125 x 103
766 x 102
847 x 102
927 x 102
101 x 103
108 x 103
116 x 103
124 x 103
132 x 103
117 x 103
129 x 103
141 x 103
154 x 103
166 x 103
178 x 103
189 x 103
201 x 103
Moment of Inertia
I (cm2)
51.5 x 10
74.4 x 10
60.2 x 10
73.4 x 10
100.3 x 10
105.7 x 10
117 x 10
127 x 10
137.8 x 10
109.2 x 10
120.0 x 10
132.0 x 10
142.4 x 10
167 x 10
185 x 10
202 x 10
219 x 10
236 x 10
253 x 10
173 x 10
191 x 10
209 x 10
227 x 10
244 x 10
261 x 10
243 x 10
269 x 10
194 x 10
319 x 10
344 x 10
369 x 10
393 x 10
417 x 10
251 x 10
278 x 10
304 x 10
330 x 10
256 x 10
381 x 10
407 x 10
431 x 10
333 x 10
369 x 10
404 x 10
439 x 10
473 x 10
507 x 10
541 x 10
575 x 10
Modulus of Section
Z (cm3)
Pile head
Applications and joint connection
Components of Piles On-site splice methodApplication and Specification
Application : civil engineering,
construction, steel tower, scaffold pile,
support, marine structures, and
other steel structures
KS : D3566,F4602
Standards JIS : G3444, A5525
BS : 1755, E.R.W
ASTM : A252, A500
API : 5L, 5LX
Workssplice part
on-sitesplice part
Workssplice part
Workssplice part
on-sitesplice part
pile A
pile A
pile A
pile A
pile A
pile A
pile B
pile B
pile A
_ KS F 4602, JIS A 5525Steel Pipes Piles
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
20 21
pile A(extra remained pile after use)pile B(short pile connecting to pile A)
(Korean industrial standard dimensions specifications)
Type Type Type Type Type
Type Type Type Type Type
Standard
Below
Top end
Bottom end
RemarksWall
t
(mm)
Outside
D
(mm)
Cross Sectional
A
(cm2)
Weight
W
(kg/m)
Radius of Gyration
i (cm4)
Superfical AreaPer Meter
(m2/m)
Moment of inertia
I (cm2)
Modulus of Section
Z (cm3)
RemarksWall
t
(mm)
Outside
D
(mm)
Cross Sectional
A
(cm2)
Weight
W
(kg/m)
Radius of Gyration
i (cm4)
Superfical AreaPer Meter
(m2/m)
Moment of inertia
I (cm2)
Modulus of Section
Z (cm3)
9
10
11
12
13
14
15
16
9
12
14
16
9
10
11
12
13
14
15
16
12
14
16
19
12
13
14
15
16
17
18
19
12
14
16
19
12
13
14
15
16
17
18
19
711.2
800
812.8
900
914.4
1000
1016
198.5
220.3
242
163.66
285.1
306.6
328.1
349.4
223.6
297.1
345.7
394.1
227.3
252.2
277.1
301.9
326.6
351.3
376
400.5
334.8
389.7
444.3
525.9
340.2
368.1
396
423.8
451.6
479.3
506.9
534.5
372.5
433.7
494.6
585.6
378.5
409.6
440.7
471.7
502.7
533.5
564.4
595.1
156
173
190
207
224
241
258
274
176
233
271
309
178
198
217
237
256
276
295
314
263
306
349
413
267
289
311
333
354
376
398
420
292
340
388
460
297
322
346
370
395
419
443
467
24.8
24.8
24.8
24.7
24.7
24.7
24.6
24.6
28
27.9
27.8
27.7
28.4
28.4
28.4
28.3
28.3
28.2
28.2
28.2
314
31.3
31.3
31.2
31.9
31.9
31.8
31.8
31.8
31.7
31.7
31.7
34.9
34.9
34.8
34.7
35.5
35.5
35.4
35.4
35.4
35.3
35.3
35.2
2.23
2.23
2.23
2.23
2.23
2.23
2.23
2.23
2.51
2.51
2.51
2.51
2.55
2.55
2.55
2.55
2.55
2.55
2.55
2.55
2.83
2.83
2.83
2.83
2.87
2.87
2.87
2.87
2.87
2.87
2.87
2.87
3.14
3.14
3.14
3.14
3.19
3.19
3.19
3.19
3.19
3.19
3.19
3.19
122 x 103
135 x 103
148 x 103
161 x 103
174 x 103
186 x 103
199 x 103
211 x 103
175 x 103
231 x 103
267 x 103
303 x 103
184 x 103
203 x 103
223 x 103
242 x 103
261 x 103
280 x 103
299 x 103
318 x 103
330 x 103
382 x 103
434 x 103
510 x 103
346 x 103
374 x 103
401 x 103
429 x 103
456 x 103
483 x 103
509 x 103
536 x 103
455 x 103
527 x 103
599 x 103
705 x 103
477 x 103
515 x 103
553 x 103
591 x 103
628 x 103
666 x 103
703 x 103
740 x 103
344 x 10
381 x 10
417 x 10
453 x 10
489 x 10
524 x 10
559 x 10
594 x 10
437 x 10
577 x 10
668 x 10
757 x 10
452 x 10
500 x 10
548 x 10
596 x 10
643 x 10
690 x 10
736 x 10
782 x 10
733 x 10
850 x 10
965 x 10
113 x 102
758 x 10
818 x 10
878 x 10
928 x 10
997 x 10
106 x 102
111 x 102
117 x 102
909 x 10
105 x 102
120 x 102
141 x 102
939 x 102
101 x 102
109 x 102
116 x 102
124 x 102
131 x 102
138 x 102
146 x 102
14
16
19
14
16
19
14
16
19
22
14
16
19
22
16
19
22
16
19
22
16
19
22
16
19
22
19
22
25
19
22
25
16
19
22
25
16
19
22
25
19
22
25
22
25
1110
1117.6
1200
1219.2
1300
1320.8
1400
1422.4
1500
1524
1600
1625.6
1800
2000
477.6
544.9
645.3
485.4
553.7
655.8
521.6
5951
704.9
814.2
530.1
604.8
716.4
827.4
645.4
764.6
883.3
655.9
777
987.7
695.7
824.3
952.4
706.9
837.7
967.9
884
1021.5
1158.5
898.3
1038.1
1177.3
796.2
943.7
1090.6
1237
809.1
959
1108.3
1257.1
1063.1
1228.9
1394.1
1367.1
1551.2
375
428
506
381
435
515
409
467
553
639
416
475
562
650
507
600
693
515
610
705
546
647
748
555
658
760
694
802
909
705
815
924
625
741
856
971
635
753
870
987
834
965
1094
1073
1218
38.4
38.3
38.2
39
39
38.8
41.9
41.9
41.8
41.7
42.6
42.5
42.4
42.3
45.4
45.3
45.2
46.1
46
45.9
48.9
48.8
48.7
49.7
49.6
49.5
52.4
52.3
52.2
53.2
53.1
53
56
55.9
55.8
55.7
56.9
56.8
56.7
56.6
63
62.9
62.8
69.9
69.8
3.46
3.46
3.46
3.51
3.51
3.51
3.77
3.77
3.77
3.77
3.83
3.83
3.83
3.83
4.08
4.08
4.08
4.15
4.15
4.15
4.4
4.4
4.4
4.47
4.47
4.47
4.71
4.71
4.71
4.79
4.79
4.79
5.03
5.03
5.03
5.03
5.11
5.11
5.11
5.11
5.65
5.65
5.65
6.28
6.28
704 x103
800 x103
943 x103
739 x103
840 x103
990 x103
917 x103
104 x 104
123 x 104
141 x 104
963 x 103
109 x 104
129 x 104
148 x 104
133 x 104
157 x 104
180 x 104
140 x 104
165 x 104
189 x 104
167 x 104
197 x 104
226 x 104
175 x 104
206 x 104
237 x 104
242 x 104
279 x 104
315 x 104
254 x 104
293 x 104
331 x 104
250 x 104
295 x 104
340 x 104
384 x 104
262 x 104
309 x 104
356 x 104
403 x 104
422 x 104
486 x 104
549 x 104
669 x 104
756 x 104
128 x 102
146 x 102
171 x 102
132 x 102
150 x 102
177 x 102
153 x 102
174 x 102
205 x 102
235 x 102
158 x 102
180 x 102
212 x 102
143 x 102
205 x 102
241 x 102
278 x 102
211 x 102
249 x 102
287 x 102
238 x 102
281 x 102
323 x 102
246 x 102
290 x 102
334 x 102
323 x 102
372 x 102
420 x 102
334 x 102
384 x 102
434 x 102
312 x 102
369 x 102
424 x 102
480 x 102
322 x 102
381 x 102
438 x 102
495 x 102
468 x 102
540 x 102
610 x 102
669 x 102
756 x 102
Measurement and weight Measurement and weight
_ KS F 4602, JIS A 5525Steel Pipes Piles
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
22 23
Waterproof capacity categorized by shape of joint
In order to meet our clients’ demands, Dongbu Steel has successfully developed the P-P type steel pipe sheet piles (SPSP),
a first among Korean steelmakers. The P-P SPSP is popular in countries such as Japan, the United States, and Germany for
its cost-effectiveness and superb waterproof properties.
Unlike type L-T or type P-T, type P-P pipes possess perfect waterproof properties, which is why over 90% of consumers in
Japan, where construction using SPSP is most advanced, choose type P-P.
Advantages and features
1. Usable even in areas having adverse conditions, such as deep waters
over loose soil.
2. Safe and secure working conditions due to waterproof properties.
3. Simultaneous construction of waterproofing and basic piling.
4. Efficient and cost-effective design.
5. Installation possible due to easy splicing.
6. Cost reduction due to shorter construction period.
7. Highly adaptable to existing structures.
8. A more durable structure application due to high transversal and
longitudinal strengths.
No
1
2
3
Joint Shape
P-P
P-T
L-T
Waterproof treatment ratio
95.40%
61.00%
32,60%
_ KS F 4605, JIS A 5530Steel pipe Sheet Piles
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
24 25
SPSP's are used in harbor construction (building piers, banks, and break-waters), estuaries,
civil engineering projects (building bridges, roads, rail roads, and soil sheet piles), foundations
for heavy machines and furnaces. More recent applications include man-made islands, petroleum
and LNG storage sites, marine airports, and fish husbandry.
Shape and permissible variation of dimensions
ContentType
Outside Diameter[D]=
outside circumference/π
Pile head
width(W)
Thickness(t)
Length
Outside Diameter(D)
Outside diameter less than 800
Outside diameter 800mm t/D 1.5% less than
t/D 1.5% more than
Outside diameter more than 500mm
Outside diameter less than 800mm
Outside diameter more than 800mm
Outside diameter 1524 or less
Outside diameter more than 500mm
Outside diameter less than 800mm
Outside diameter more than 800mm
Outside diameter 1524 or less
Thickness
less than 16
Thickness
less than 16
Pipe body(L)
Joint( )
Permissible Variations ContentType Permissible Variations
±0.5%
+Unspecified
-0.7mm
+Unspecified
-0.8mm
+Unspecified
0
±2.0%
±1.5%
0.1% or less of pipe
body length(L)
0.1% or less of pipe
body length(L)
Bending(N)
Deflection(S)
Straightness
of joint opening(P)
Joint length(( ) 15m or less
Joint length(( ) or than 15m
10mm or less
1/1500 or less of
joint length( )
Pipe body(h)
Joint(h)
Pile head
pile body length
18m or less
More than 18m
Outside diameter more than 1000mm
2mm or less
0.5% of less ofoutside
diameter max 3
0.5% of less ofoutside
diameter max 4
2mm or less
5mm or less
Joint adhesion
spot(Q)
Cross section of the
welded splice
Cross section of the
welded splice cut
at a right angle
Join(C)
Pile
body
(C)
Outside diameter
1000mm or less
_ KS F 4605, JIS A 5530Steel pipe Sheet Piles
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
26 27
1. Bending (N) runs parallel to the steel pipe sheet pile wall, while deflection is set at the right angle of the steel pipe sheet pile.
2. Outside diameter and thickness measures the steel pipe body.
3. While the figure illustrates the P-P type, other types also share the same joint shape.
4. Products under 500 or exceeding 1,524 shall be available upon prior consultation with the manufacturer
Outside diameter
more than 800mm
in. OD mm
mm
mm
TH in
Size
Normal
6 7 8 9 10 11 12 13 14 15
0.236 0.276 0.315 0.354 0.394 0.433 0.472 0.512 0.551 0.591
15
18
20
24
28
32
36
40
44
48
54
60
64
66
72
76
80
84
88
92
96
100
400A
450A
500A
600A
700A
800A
900A
1000A
1100A
1200A
1350A
1500A
1600A
1650A
1800A
1900A
2000A
2100A
2200A
2300A
2400A
2500A
406.4
457.2
508
609.6
711.2
812.8
914.4
1016
117.6
1219.2
1371.6
1524
1625.6
1676.4
1828.8
1930.4
2032
2133.6
2235.2
2336.8
2438.4
2540
59.2
66.8
74.3
89.3
104
119
134
149
165
68.9
77.7
86.5
104
122
139
157
174
192
209
78.6
88.6
98.6
119
139
159
179
199
219
239
269
88.2
99.5
111
133
156
178
201
224
246
269
302
336
359
97.8
110
123
148
173
198
223
248
273
298
336
373
398
411
107
121
135
162
190
218
245
273
300
328
369
410
438
452
117
132
147
177
207
237
267
297
327
357
402
447
478
493
538
568
159
191
224
256
289
322
354
387
436
484
517
533
582
615
171
206
241
276
311
346
381
416
469
521
556
574
627
662
697
732
767
802
220
258
295
333
370
408
445
502
558
596
615
671
709
746
784
821
859
Product availability
in. mm OD mm
mm
TH in
Size
Normal
6 7 8 9 10 11 12 13 14 15
0.236 0.276 0.315 0.354 0.394 0.433 0.472 0.512 0.551 0.591
15
18
20
24
28
32
36
40
44
48
54
60
64
66
72
76
80
84
88
92
96
100
400A
450A
500A
600A
700A
800A
900A
1000A
1100A
1200A
1350A
1500A
1600A
1650A
1800A
1900A
2000A
2100A
2200A
2300A
2400A
2500A
406.4
457.2
508
609.6
711.2
812.8
914.4
1016
117.6
1219.2
1371.6
1524
1625.6
1676.4
1828.8
1930.4
2032
2133.6
2235.2
2336.8
2438.4
2540
234
274
314
355
395
435
475
535
595
635
655
715
755
795
836
876
916
956
996
291
334
376
419
461
504
568
632
674
696
796
802
845
887
930
973
1015
1058
353
398
443
488
533
601
669
714
736
804
849
894
939
984
1029
1074
1119
420
467
515
562
634
705
753
777
848
896
943
991
1038
1086
1134
1181
491
541
591
667
742
792
817
892
942
992
1042
1093
1143
1193
1243
568
621
699
778
831
857
936
989
1041
1094
1147
1199
1252
1304
650
732
815
870
898
980
1035
1091
1146
1201
1256
1311
1366
679
765
851
909
938
1024
1082
1140
1197
1255
1312
1370
1428
707
798
888
948
978
1068
1128
1188
1249
1309
1369
1429
1489
736
830
924
987
1018
1112
1175
1237
1300
1363
1425
1488
1550
_ KS F 4605, JIS A 5530Steel pipe Sheet Piles
Dongbu Steel
Pipe & Steel Structure
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
28 29
_ line pipe and oil well tubular goodsAPI 5L, API 5CT
OutsideDiameter
WallThickness
Calculated WeightPlain ends H-40 J-55 & K-55
mmin. in. mm ib/ft kg/ft kg/m std. std.alt. alt.
Test Pressure(psi)
5
5 1/2
6 5/8
8 5/8
10 3/4
11 3/4
13 3/8
16
20
7
7 5/8
9 5/8
18 5/8
177.8
193.7
244.5
473.1
127
139.7
168.3
219.1
273.0
298.4
339.7
406.4
508.0
0,220
0,253
0,296
0,244
0,275
0,304
0,288
0,288
0,352
0,231
0,272
0,317
0,362
0,300
0,328
0,264
0,304
0,352
0,352
0,400
0,312
0,352
0,352
0,395
0,279
0,350
0,350
0,400
0,450
0,333
0,375
0,435
0,489
0,330
0,380
0,430
0,480
0,375
0,438
0,495
0,435
0,435
0,438
0,438
0,500
5.59
6.43
7.52
6.20
6.98
7.72
7.32
7.32
8.94
5.87
6.91
8.05
9.19
7.62
8.33
6.71
7.72
8.94
8.94
10.16
7.92
8.94
8.94
10.03
7.09
8.89
8.89
10.16
11.43
8.46
9.52
11.05
12.42
8.38
9.65
10.92
12.19
9.52
11.13
12.57
11.05
11.05
11.13
11.13
12.70
11.23
12.83
14.87
13.70
15.35
16.87
19.49
19.49
23.58
16.70
19.54
22.63
25.66
23.47
25.56
23.47
27.02
31.10
31.10
35.14
31.03
34.86
34.86
38.94
31.20
38.88
38.88
44.22
49.50
40.60
45.56
52.27
58.81
45.98
52.74
59.45
66.11
62.58
72.72
81.97
84.51
84.51
9.51
9.51
104.13
5.10
5.83
6.75
6.22
6.96
7.66
8.86
8.86
10.71
7.56
8.88
10.27
11.65
10.66
11.61
10.71
12.27
14.12
14.12
15.96
14.08
15.83
15.83
17.68
14.17
17.65
17.65
20.07
22.47
18.44
20.67
23.87
26.70
20.87
23.94
26.99
30.01
28.40
33.07
37.21
38.38
38.38
41.57
41.57
59.62
16.74
19.12
22.16
20.41
22.84
25.13
29.06
29.06
35.13
24.89
29.12
33.70
38.12
34.97
38.08
35.14
40.24
46.33
46.33
52.35
46.21
51.93
51.93
57.99
46.49
57.90
57.90
65.85
73.73
60.49
67.82
78.30
87.59
68.47
78.54
88.54
98.45
93.17
108.49
122.08
125.91
125.91
136.37
136.37
155.12
2.80
2,800
2,100
2,500
2,500
2,300
2,600
2,100
2,300
1,200
1,600
1,400
1,200
1,100
1,100
1,100
-
-
-
-
-
-
-
1,700
2,100
1,800
1,600
-
-
-
3,000
3,000
3,000
3,000
3,000
3,000
-
3,000
3,000
-
3,000
3,000
3,000
-
3,000
2,700
-
-
3,000
3,000
-
-
3,000
3,000
-
-
2,100
2,500
2,800
-
2,100
2,400
2,700
-
1,900
2,100
2,400
-
1,800
2,000
1,500
1,500
1,400
1,400
1,600
3,900
4,500
5,200
3,900
4,400
4,900
-
3,800
4,700
-
3,400
4,000
-
3,800
-
-
-
3,600
4,100
-
-
3,200
3,600
-
-
2,900
3,300
3,700
-
2,500
2,800
3,200
-
2,500
2,800
3,200
-
-
-
-
-
-
-
-
Dongbu Steel
Pipe & Steel Structure
For the purpose of human safety, promoting the safe
transmission of oil & gas is Dongbu steel's goal.
Our advanced technology made acquisition of the API
Monogram possible for the first time in Korea.
Excellent Quality
Dongbu steel's quality management system is in place from
raw material purchasing, production, inspection to delivery.
Examples of quality inspections introduced to produce
high-quality products are ultrasonic test end finish screw
processing, X-ray and water pressure tests.
Highly Consistent Quality Control System
30 31
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
Size:OutsideDiameter
Wall thickness
in. mm in. in. lb/ft kg/ft psiGrade A25 Grade B Grade X42 Grade X46 Grade X52 Grade X56 Grade X60 Grade X65Grade A
psikg/m kg kg psi kg psi kg psi kg psi kg psi kg psi kg psi kgSch.No.
mm
Weight Standard Test Pressure min(kpa x 100) Standard Test Pressure min(kpa x 100)
630940
1,1801,4201,6501,9502,2102,3602,6002,8002,800530690790890990
1,0901,1901,2901,3901,5801,7801,9802,1802,3802,7402,800610760920...
1,0701,2201,3501,5201,5701,6801,8302,1302,430610730...
860980
1,0901,2001,3401,4301,7101,950570620...
720
*0.083*0.125*0.1560.1880.2190.2580.2810.3120.3440.3750.500*0.083*0.109*0.125*0.141*0.1560.1720.1880.2030.2190.2500.2800.3120.3440.3750.4320.500*0.125*0.1560.1880.2030.2190.2500.2770.3120.3220.3440.3750.4380.500*0.156*0.188*0.2030.2190.2500.2790.3070.3440.3650.4380.500*0.172*0.188*0.203*0.219
141.3
168.3
219.1
273
323.8
5 9/16
6 5/8
8 5/8
10 3/4
12 3/4
2.113.183.964.785.566.557.147.928.749.5212.72.112.773.183.583.964.374.785.165.566.357.117.928.749.52
10.9712.703.183.964.785.165.566.357.047.928.188.749.52
11.1312.73.964.785.165.566.357.097.808.749.27
11.1312.704.374.785.165.56
...1/8
5/323/167/32
...9/325/16
11/323/81/2......
1/8...
5/32...
3/16...
7/321/4...
5/1611/32
3/8...
1/21/8
5/323/16
...7/321/4...
5/16...
11/323/8
7/161/2
5/323/16
...7/321/4......
11/32...
7/161/2...
3/16...
7/32
4.867.269.01
10.7912.5014.6215.8517.5019.1720.7827.04
5.87.598.689.76
10.7811.8512.9213.9214.9817.0218.9721.0423.0825.0328.5732.7111.3514.1116.9418.2619.6622.3624.7027.7028.5530.4233.0438.3043.3917.6521.2122.8724.6328.0431.2034.2438.3240.4848.2454.7423.1125.2227.2029.31
2.213.304.094.915.676.637.207.948.719.43
12.282.643.453.954.434.895.395.886.336.807.738.619.55
10.4811.3612.9714.855.166.407.708.308.92
10.1511.2212.5712.6713.8215.0017.4019.708.019.64
10.3911.1812.7314.1715.5517.3618.3821.9124.8510.4911.4612.3613.30
7.241.83
13.4116.0918.6121.7723.6226.0528.5730.9440.288.65
11.3112.9514.5416.0517.6719.2820.7622.3125.3628.2631.3234.3937.2842.5648.7316.9321.0125.2627.2229.2833.3236.8641.2642.5545.3449.2057.0864.6426.2731.6234.0836.6741.7646.5051.0156.9660.2971.8781.5234.4237.6040.5543.63
...670840
1,0101,1801,2001,5201,6801,8602,0202,700
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...4759718384
10711813114290....................................................................................................................................
540810
1,0101,2201,4201,6701,8202,0202,2302,4302,800450590680770850930
1,0201,1001,1901,3601,5201,7001,8702,0402,3502,720520650780...
9101,0401,1601,3001,3401,4401,5701,8302,090520630...
730840930
1,0301,1501,2201,4701,670490530...
620
38577186
10011712814215717119732414854606572778496
107120131143165191374655...6473829194
1011101291473744...515965728186
1031173437...44
40
80120
40
80
2030
40
80
20
30
40
60
446683
100116137149166183197197374956637077849198
111125139153167193197435365...758695
1071101181291501714351...6069778494
1011201374044...51
7501,1301,4101,7001,9902,3402,5503,0003,0003,0003,000790
1,1401,1901,3401,4801,6401,7901,9302,0802,3802,6602,9703,0003,0003,0003,000910
1,1401,3701,4801,6001,8302,0202,2802,3502,5102,7403,0003,0001,0401,2501,3501,4501,6601,8502,0402,2802,4202,9103,000960
1,0501,1401,230
537999
12014016517921121121121156738494
104115126136146167187209211211211211648096
104112129142160165176193211211738895
10211713014316017020521167748086
8201,2401,5501,8702,1702,5602,7903,0003,0003,0003,000860
1,1401,3001,4701,6201,7901,9602,1102,2802,6002,9203,0003,0003,0003,0003,0001,0001,2501,5001,6201,7502,0002,2202,5002,5802,7503,0003,0003,0001,1301,3701,4801,5901,8202,0302,2302,5002,6603,0003,0001,0501,1501,2501,340
5887
109131153185190211211211211608091
1031141261381481601832052112112112112117088
1051141231411561761811932112112117996
10411212814315717618721121174818894
9301,4001,7502,1102,4602,8903,0003,0003,0003,0003,000980
1,2801,4701,6601,8402,0302,2102,3902,5802,9403,0003,0003,0003,0003,0003,0001,1301,4101,7001,8401,9802,2602,5102,8202,9103,0003,0003,0003,0001,2801,5501,6701,8002,0602,2902,5202,8303,0003,0003,0001,1901,3001,4101,520
6598
1231481732032112112112112116990
1031171291431551681812072112112112112112117999
12012913915917619820521121121121190
109117127145161177199211211211849199
107
1,0001,5001,9102,2702,6503,0003,0003,0003,0003,0003,0001,0501,3801,5801,7901,9802,1802,3802,5702,7803,0003,0003,0003,0003,0003,0003,0001,2201,5201,8302,0002,1302,4302,7003,0003,0003,0003,0003,0003,0001,3801,6601,8001,9402,2102,4702,7203,0003,0003,0003,0001,2801,4001,5201,640
701051341601862112112112112112117497
11112613915316718119521121121121121121121186
10712914115017119021121121121121121197
11712713615517419121121121121197
105114123
1,0401,6302,0202,4302,8303,0003,0003,0003,0003,0003,0001,1301.4801,7001,9202,1202,3402,5502,7602,9803,0003,0003,0003,0003,0003,0003,0001,3001,6301,9602,2102,2902,6102,8903,0003,0003,0003,0003,0003,0001,4801,7801,9302,0802,3702,6502,9103,0003,0003,0003,0001,3801,5001,6201,750
7311514217119921121121121121121179
10412013514916517919420921121121121121121121191
11513814916118320321121121121121121110412513614616718620521121121121197
105114123
1,1601,7502,2102,6403,0003,0003,0003,0003,0003,0003,0001,2201,6001,8402,0802,3002,5302,7702,9903,0003,0003,0003,0003,0003,0003,0003,0001,4101,7602,1302,2902,4802,8303,0003,0003,0003,0003,0003,0003,0001,6001,9302,0902,2502,5702,8703,0003,0003,0003,0003,0001,4901,6301,7601,900
8212314918621121121121121121121186
11212914616217819521021121121121121121121121199
124150161174199211211211211211211211112136147158181202211211211211211105115124134
line pipe
Dongbu Steel
Pipe & Steel Structure
32 33
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
Size:OutsideDiameter
Wall Thickness
in. mm in.
4.785.165.335.566.357.147.928.749.52
10.3111.1311.9112.704.785.165.566.357.147.928.749.52
10.3111.1311.9112.704.785.566.357.147.928.749.52
10.3111.1311.9112.705.566.357.147.928.749.52
10.3111.1311.9112.70
3/16......
7/321/4
9/325/16
11/323/8...
7/161/2
9/163/16
...7/321/4
9/325/16
11/323/8...
7/16...
1/23/167/321/4
9/325/16
11/323/8...
7/16...
1/27/321/4
9/325/16
11/323/8...
7/16...
1/2
10
20
30
40
10
20
30
40
10
20
30
10
20
30
*0.1880.203*0.210*0.219*0.250*0.2810.3120.3440.3750.4060.4380.4690.500*0.188*0.203*0.219*0.250*2.2810.3120.3440.3750.4060.4380.4690.500*0.188*0.219*0.250*0.2810.3120.3440.3750.4060.4380.4690.500*0.219*0.250*0.2810.3120.3440.3750.4060.4380.4690.5000.562
355.6
406.4
457.2
508
14
16
18
20
27.7329.9130.9332.2336.7141.1745.6150.1754.5758.9463.4467.7872.0931.7534.2536.9142.0547.1752.2757.5262.5867.6272.8077.7982.7735.7641.5947.3953.1858.9464.8770.5976.2982.1587.8193.4546.2752.7359.1865.6072.2178.6087.9691.5197.83
104.13
12.6013.5714.0314.6316.6718.7020.7022.7924.7626.7628.8230.7732.7314.4315.5616.7519.0721.4323.7226.1228.4
30.7033.0735.3237.5816.2618.8721.5224.1526.7529.4632.0334.6337.3239.8642.4321.0023.9426.8829.7732.8035.6738.5741.5744.4147.28
41.3544.5546.0447.9954.6961.3567.9074.7681.2587.7994.55
100.94107.3947.3451.0654.9662.6470.3077.8385.7193.17
100.70108.49115.86123.353.3361.9270.6079.2487.7596.66
105.20113.62122.43130.78139.2168.8978.5588.1997.67
107.61117.03126.54136.37145.70155.12
...
...
...
...
...
...
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...
...
...
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...
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...
...
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...
...... ...................................................................................................
480520......
640720800880960...
1,130...
1,290420460490560630700770840...
990...
1,120380440500560620690750...
880...
1,000390450510560620680...
790...
900
3437......4551566267...79...9130
323343944495459...70...7927313539444953...62...70273236394448...56...63
14.30 ... 116.78 53.02 174.70 ... ... 1,010 71
0.281 7.14 37.42 16.99 55.76 ... ... 790 569/220.312 7.92 41.45 18.80 61.70 ... ... 880 625/16
0.344323.812 3/4 8.74 45.58 20.70 67.90 ... ... 970 6811/320.375 9.52 49.56 22.49 73.78 ... ... 1,060 753/8
0.250 6.35 33.38 15.15 49.71 ... ... 710 501/4 20
0.330 8.38 43.77 19.87 65.18 ... ... 930 65... 30
0.406 10.31 53.52 24.29 79.70 ... ... ... ...... 400.438 11.13 57.59 26.16 85.85 ... ... 1,240 877/160.500 12.70 65.42 29.70 97.43 ... ... 1,410 991/2
in. lb/ft kg/ft psiGrade B Grade X42 Grade X46 Grade X52 Grade X56 Grade X60 Grade X65Grade A25 Grade A
psikg/m kg kg psi kg psi kg psi kg psi kg psi kg psi kg psi kgSch.No.
mm
Weight Standard Test Pressure min(kpa x 100) Standard Test Pressure min(kpa x 100)
820930
1,0301,0901,1301,240
...1,4401,650560610......
750840940
1,0301,120
...1,310
...1,500490530570660740820900980...
1,150...
1,310440510580660730800880...
1,020...
1,170460520590660720790...
920...
1,0501,180
586572777987...
1011163943......5359667279...92...
1053437404652586369...81...9231364146515662...72...82323741465156...65...7483
1,4001,5701,7501,8501,9302,1002,2702,4502,800960...
1,0701,1201,2801,4301,5901,7501,9102,0702,2302,3902,550840910980
1,1201,2501,3901,5401,6701,8101,9502,0902,230750870990
1,1101,2401,3601,4901,6101,7401,8601,980830940
1,0601,1801,3001,4201,5301,6601,7701,8902,120
9811012313013614816017219767...757990
101112123134146157168179596469798898
108117127137147157536170788796
1051131221311395866758391
100108117124133149
1,5301,7201,9102,0202,1102,3002,4902,6903,0001,050
...1,1701,2201,4001,5701,7401,9202,0902,2702,4502,6202,790920990
1,0701,220
10,3701,5201,6801,8301,9802,1402,2902,440820950
1,0901,2201,3601,4901,6301,7601,9002,0402,170910
1,0401,1601,2901,4201,5501,6801,8101,9402,0702,330
10812113414214816217518921174...828698
1101221351471601721841966570758696
1071181291391501611725867778696
10511512413414315364738291
100109118127136146164
1,7301,9502,1602,2902,3902,6002,8103,0003,0001,190
...1,3301,3801,5801,7701,9702,1702,3702,5602,7702,9603,0001,0401,1201,2101,3801,5501,7201,9002,0702,2402,4202,5902,760920
1,0801,2301,3801,5301,6901,8401,9902,1502,3002,4601,0201,1701,3201,4601,6101,7601,9002,0502,1902,3402,630
12213715216116818319821121184...9397
11112413815316718019520821173798597
10912113414615717018219465768697
108119129140151162173728293
103113124134144154165185
1,8702,1002,3302,4602,5702,8003,0003,0003,0001,280
...1,4301,4901,7001,9102,1202,3402,5502,7602,9803,0003,0001,1201,2101,3001,4901,6701,8602,0502,2302.4202,6102,7902,980990
1,1601,3201,4901,6501,8201,9802,1502,3202,4802,6401,1001,2601,4201,5701,7301,8902,0502,2102,3602,5202,830
13114816417318119721121121190...
101105120134149165179194209211211798591
105117131144157170183196209708293
1051161281391511631741867789
100110122133144155166177199
2,0002,2502,5002,6402,7503,0003,0003,0003,0001,370
...1,5301,6001,8202,0502,2702,5102,7302,9603,0003,0003,0001,2001,2901,4001,5901,7901,9902,1902,3902,5902,7902,9903,0001,0701,2401,4201,5901,7701,9502,1202,3002,4802,6602,8301,1801,3501,5201,6801,8602,0202,1902,3702,5302,7003,000
14115817618619321121121121196...
108112128144160176192208211211211849198
1121261401541681821962102117587
1001121241371491621741871998395
107118131142154167178190211
2,1702,4402,7002,8602,9803,0003,0003,0003,0001,480
...1,6601,7301,9702,2202,4602,7202,9603,0003,0003,0003,0001,3001,4001,5101,7301,9402,1502,3802,5902,8003,0003,0003,0001,1501,3401,5301,7301,9202,1102,3002,4902,6902,8803,0001,2801,4601,6401,8302,0102,1902,3802,5602,7402,7503,000
153172190201209211211211211104...
1171221381561731912082112112112119198
1061221361511671871972112112118194
10812213514816217518920221190
103115129141154167180193193211
line pipe
Dongbu Steel
Pipe & Steel Structure
34 35
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
_ Steel PipesRoll Bending
Roll Bending Steel Pipes has its Heavy Wall thickness Pipe with outside diameter of 450~4,500 and thickness of 6~45 mm,
which is manufactured by SAW process. It is widely used in oil, natural gas development, wharf, harbor construction, Jacket
pipe, construction, bridge building, line pipe and many more.
Raw Material
Thickness
Length
Width
Quality of meterial
Hot-Rolled Sheet
6 ~ 45mm
1,600 ~ 15,000mm
1,000 ~ 6,100mm
SS400 ~ SM570
Raw Material
Product
Thickness
Length
Width
Roll Bending Pipe
6 ~ 45mm
450 ~ 4,500mm
1,000 ~ 6,100mm
PRODUCT
MANUFACTURING PROCESS
Roll Bending pipe description
Manufacturing Process
Plate
Edge Facing
Inspection
Cutting and Edge milling
Outside Welding
Delivery
Roll Bending
Tack Welding
Edge Bending
Inside Welding
36 37
High strength Steel Pipes for Bracing
High strength steel pipes for Bracing are more competitive than H Beam for Bracing in terms of excavation, safety and economical
efficiency.
High strength steel pipes for Bracing
welded portion,
tensile strength
N/
elongation(%) flatteningH=distance between
exterior surfaces
D=outside diameter
No11 specimen
No12 specimen
No5 specimen
transverse direction
Mechanical
property
weld type
outside diameter type
STKT 590
outside diameter
electrical resistance welding
40mm (min)
tensile strength
N/
590 ~ 740
yield strength
or durability
N/
440 Over 20 Over 16
electrical resistance welding
outside diameter
3/4D
arc welding
350mm (max)
590 ~ 740
STKT 590(High strength steel pipes)
- No difference between strong and weak axis, which has an advantage of torsion.
- Possibility of expanding bracing gap.
- Possibility of expanding middle Steel Pipe Piles gap.
Technical side
Technical side
- It is being used generally in North America and Europe.
- Possibility of 10~20% reduction, compared to the existing construction.
- 30% of construction period is shortened, compared to the existing construction.
Suitability condition and
Economical Efficiency
H Beam for Bracing
- Disadvantage of bracing weck axis direction
- Small gap of Bridging
Suitability condition and
Economical Efficiency- High price of construction expense
Applications
Steel Pipes for Plant
building foundations for heavy machine,
petroleum and LNG storage sites, marine airports.
Line Pipe
Oil or natural gas piping.
Steel Pipe Piles in Marine
building piers, banks, , estuaries, civil engineering projects, etc.
Dongbu Steel
Pipe & Steel Structure
Steel Pipes for Ordinary Piping
fish husbandry,etc.
Steel Pipe Piles
Building, bridge, harbor, steel tower,
electric light post, scaffold, etc.
Steel Pipes for General Structural Purposes
building bridges, roads, rail roads, and soil
sheet piles.
Coated Pipes
Water supply and sewage, industrial water,
irrigation, oil & gas supply.
Steel pipe Sheet Piles
API
Roll Bending Steel Pipes
Carbon steel pipes for
general structural purposes
Steel Pipes Piles
Dongbu Steel factory
Manufacturing Process
Available Size Main Products
High strength Steel Pipes for Bracing
Applications
Approved & Authorized specifications
Standard Chart
ERW Steel Pipes
SPIRAL Welded Steel Pipes
38 39
Dongbu Steel
Pipe & Steel Structure
Approved & Authorized specifications
KS D 3507
JIS G 3452
API 5L API 5CT API 2B DNV KR
JIS G 3454 JIS G 3444 JIS A 5525 JIS A 5530
KS D 3562 KS D 3566 KS F 4602 KS F 4605 KS D 3583 KS D 3631
Quality
Environment
Standard
Safety & Healthy