Post on 06-Apr-2018
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1 | Manfred Hfer | Welding of X80/100 I April , 2011 1
We are the World of Welding Solutions.
Welding of roll-bondedclad plates
with focus on 625
MANFRED HOEFER,Technical Regional Manager
ME, April 2011
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2 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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3 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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4 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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5 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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6 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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7 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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8 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
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9 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates
joint designs
Access from both sides Access from one side
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10 | Manfred Hfer | Welding of X80/100 I April , 2011
Roll-bonded clad plates Welding processes-joint designs
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11 | Manfred Hfer | Welding of X80/100 I April , 2011
NiCr22Mo9Nb
NiCr22Mo9Nb
20 25 5 Cu L
NiCr22Mo9Nb
NiCr20Mn3Nb
EN
Nibas 625 IG/FOXENiCrMo-3E Ni 6625ERNiCrMo-32.4856Alloy 625
Nibas 625 IG/FOXENiCrMo-3E Ni 6625ERNiCrMo-32.4858Alloy 825
CN20/25 M IG/FOXE385E 20 25CuNLER3851.4539Alloy 904L
Nibas 625 IG/FOXENiCrMo-3E Ni 6625ERNiCrMo-31.4876Alloy 800
Nibas 70/20 IG/FOXENiCrFe-3E Ni 6082ERNiCr-32.4816Alloy 600
AWSENAWS
Bohler
Brand
Subsequent layersBufferMulti pass GTAW+SMAWEN
Material
Number
Alloytype
Consumable typeCladding type
Welding consumables according tocladding materials
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12 | Manfred Hfer | Welding of X80/100 I April , 2011
Welding technologies
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13 | Manfred Hfer | Welding of X80/100 I April , 2011
Principal of joint welding of cladded pipes
Thicknessmm
GTAW - root
Joint preparation Welding
1. GTAW- weldingof the cladding
2. Joining with
Overalloyed
Filler metals
r = according tothe process
Weldable onlyfrom one side
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14 | Manfred Hfer | Welding of X80/100 I April , 2011
WPS for cladded pipes
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SHAH Gas Development
Pipeline welding of CRA clad pipesLocation: Habshan, Abu Dhabi
Welding of CRA clad steels may be performed in one of two sequences.
When the back side of the weld is accessible, a carbon steel to carbon
steel weld shall be made first with carbon steel weld materials. Then theback side of the weld shall be weld overlayed with Corrosion ResistantAlloy in compliance with Weld Overlay Specification RP-710-95-003.
When the back side of the weld is inaccessible, the entire weld shall bemade from one side using weld materials of UNS N06625 composition
such as ERNiCrMo-3 and ENiCrMo-3 welding materials. When the backside of the weld is inaccessible, the root pass shall be made with the GasTungsten Arc welding process including back purging with inert gas.Back purging shall be maintained through completion of the root passand hot pass or until 6 mm weld thickness is deposited, whichever isgreater.
WPS for cladded pipes
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16 | Manfred Hfer | Welding of X80/100 I April , 2011
SHAH Gas DevelopmentPipeline welding of CRA clad pipes
Location: Habshan, Abu Dhabi
WPS for cladded pipes
16 dia x 11.2mm wt API 5L X60 with 3mm clad24 dia x 16.0mm wt API 5L X60 with 3mm clad
Hardness for Carbon steel : 248 HV 10.Average length: 12M long; beveled to 30 deg -0 deg and +5 deg.Manufactured as per API 5LD 2nd edition, 1998., SAW Line pipe.
UNS N06625 Metallurgical clad CRA Layer
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17 | Manfred Hfer | Welding of X80/100 I April , 2011
Welding test with unalloyed SMAW electrodeson Ni-base weld metal of type ENiCrMo-3
Influence on chemical composition, hardness and microstructure
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18 | Manfred Hfer | Welding of X80/100 I April , 2011
Bending test results
M:2,5:1
Bending test from cross-section
of weld deposited cladding withunalloyed SMAW electrodes onNi-base weld metal of type ENicrMo-3
Result: 180bending angle with several cracksin dilution zone of unalloyed SMAW
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19 | Manfred Hfer | Welding of X80/100 I April , 2011
Thank you for your kind attention
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www.boehler-welding.com
Thank you very much
for your kind attention
Manfred HoeferRegional Technical Manager
Bhler Schweitechnik Austria GmbHKapfenberg Austria
Member of theBohler Welding Group