4 Asme Sec Ix Wps Pqr Slide 71 to 105

Question: Does a WPS qualified, using P-No. 1 Group No. 1 material, qualify for welding P-No.1 Group No. 2 material when notch toughness tests are not required?

Reply: Yes.

30 เมษายน 53 ASME Section IX, WPS/PQR Prepared by

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Question (1): A procedure qualification using the SMAW process in a V-groove joint has been qualified with acceptable bends, tensiles and charpy V-notch impact specimens, using P-, py p p , gNo. 1 Gr. No. 2 welded to a P-No. 3 Gr. No. 3. Does the procedure qualification support the welding of P-No. 1 Gr. No. 2 material together when notch toughness tests are required?Reply (1): No.Question (2): Does the procedure qualification support the welding of P-No. 1 Gr. No. 2 material to P-No. 3 Gr. No. 3 gmaterial?Reply (2): Yes.Question (5): Does the procedure qualification support theQuestion (5): Does the procedure qualification support the welding of P-No. 3 Gr. No. 3 material together?Reply (3): No.


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Question (1): When a procedure qualification with supplemental notch toughness requirements is conducted with

i l f diff P N b h h i l i ltwo materials of different P-Numbers each having multiple certifications in different Group Numbers, are WPSs qualified for all combination of the multiple certified Group Numbers of p pthe first P-Number material to the multiple certified Group Numbers of the second P-Number material?Reply (1): Yes.Question (2): In Question (1), are materials from the multiple certified Group Numbers qualified for welding a P Numbercertified Group Numbers qualified for welding a P-Number material to itself?Reply (2): No.p y ( )


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WPS qualified on groove welds shall be applicable for production welds between dissimilar base metal thicknesses provided:

(a) the thickness of the thinner member shall be within the range permitted by QW-451

(b) the thickness of the thicker member shall be as follows:(b) the thickness of the thicker member shall be as follows:(1) For P-No. 8, P-No. 41, P-No. 42, P-No. 43, Pno. 44, P-No.

45, P-No. 46, P-No. 49, P-No. 51, P-No.52, P-No. 53, P-No. , , , , , ,61, and P-No. 62 metal, there shall be no limitation on the maximum thickness of the thicker production member in j i t f i il P N b t i l id d lifi tijoints of similar P-Number materials provided qualification was made on base metal having a thickness of 1⁄4 in. (6 mm) or greater.g


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(2) For all other metal, the thickness of the thicker member shall be within the range permitted by QW-451, except there need be no limitation on the maximum thickness of the thicker production member provided qualification was made on base metal having a thickness of 11⁄2 in (38made on base metal having a thickness of 11⁄2 in. (38 mm) or more.

More than one procedure qualification may be requiredto qualify for some dissimilar thickness combinationsto qualify for some dissimilar thickness combinations.


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Question (1): A WPS is qualified to weld base material from 1.6 mm to 20 mm. May that WPS be used for welding a part 30 mm thick that has been tapered to 15 mm thick to another 15 mm part?

Reply (1): Yes.


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Question (1): A procedure qualification test coupon using the same P-Number materials and consisting of two plates of different thicknesses, T1 = 1 in. thick and T2 1½ in. thick, has been welded with a single process. The thicknesses meet on the same plane with neither platethicknesses meet on the same plane with neither plate being tapered. Does this test coupon qualify the WPS for both base metals for a thickness range of 3/16 in. to 8 in.both base metals for a thickness range of 3/16 in. to 8 in. on both sides of the weld joint?

Reply (2): Yes.


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Question (1): A procedure qualification test coupon using different P-Number materials and consisting of two plates of diff hi k T 1 i hi k d T 1½ i hi k hdifferent thicknesses, T1 = 1 in. thick and T2 1½ in. thick, has been welded with a single process. The thicknesses meet on the same plane with neither plate being tapered. Does this test p p g pcoupon qualify the WPS for both base metals for a thickness range of 3/16 in. to 8 in. on both sides of the weld joint?

Reply (2): No. QW-202.4 requires both base metal thicknesses be in accordance with QW 451 1 Base metal T is qualifiedbe in accordance with QW-451.1. Base metal T1 is qualified 3/16 in. to 2 in. and base metal T2 is qualified 3/16 in. to 8 in., except as permitted by QW-202.4(b)(1).


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QW – 253 WELDING VARIABLES PROCEDURE SPECIFICATIONS (WPS)

Shield Metal-Arc (SMAW)Shield Metal Arc (SMAW)

Paragraph Brief of Variables Essential Supplementary

Essential Nonessential .4 ∅ F-Number × .5 ∅ A-Number × .6 ∅ Diameter × .7 ∅ Diameter.> ¼ in. (6 mm) × 12 ∅ Cl ifi ti

QW-404 Filler Metals .12 ∅ Classification ×

.30 ∅ t ×

Metals

.33 ∅ Classification × Legend: + Addition > Increase/greater than ↑ Uphill ← Forehand ∅ Change - Deletion < Decrease/less than ↓ Downhill → Backhand


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QW-404.4 A change from one F-Number in table QW- 432 to any other F-Number or to any other filler metal not listed in table QW-432.

UG-9 WELDING MATERIALSWelding materials used for production shall comply with the

requirements of this Division, those of Section IX, and the applicable q , ppqualified welding procedure specification. When the welding materials comply with one of the specifications in Section II, Part C, the marking or tagging of the material, containers, or packages as required by the applicable Section I1 specification may be accepted for identification in lieu of aSection I1 specification may be accepted for identification in lieu of a Certified Test Report or a Certificate of Compliance. When the welding materials do not comply with one of the specifications of Section II, the marking or tagging shall be identifiable with the welding materials set forth g gg g gin the welding procedure specification, and may be accepted in lieu of a Certified Test Report or a Certificate of Compliance.

ASME Section IX, WPS/PQR Prepared by

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QW-431 GeneralThe following F-Number grouping of electrodes and welding rods in table QW-

432 is based essentially on their usability characteristics, which fundamentally determine the ability of welders to make satisfactory welds with a given filler metal.determine the ability of welders to make satisfactory welds with a given filler metal. This grouping is made to reduce the number of welding procedure and performance qualifications, where this can logically he done. The grouping does not imply that base metals or filler metals within a group may be indiscriminately substituted for a metal that was used in the qualification test without consideration of ! the compatibility of h b d fill l f h d i f ll i l i ldthe base and filler metals from the standpoint of metallurgical properties, postweld

heat treatment design and service requirements, and mechanical properties.QW-432.1 Steel and Steel AlloysQW-432.2 Aluminum and Aluminum-Base AlloysQW-432.3 Copper and Copper-Base AlloysQW-432.4 Nickel and Nickel-Base AlloysQW-432.5 Titanium and Titanium AlloysQW 432 6 Zirconium and Zirconium AlloysQW-432.6 Zirconium and Zirconium AlloysQW-432.7 Hard-Facing Weld Metal Overlay


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QW -432F-Numbers

Grouping of Electrodes and W elding Rods for Qualification

QW F-No. ASME Specification No. AW S Classification No.

Steel and Steel Alloys

432.1 1 SFA-5.1 & 5.5 EXX20, EXX22, EXX24, EXX27, EXX28

1 SFA-5.4 EXX25, EXX26

2 SFA-5 1 & 5 5 EXX12 EXX13 EXX14 EXX192 SFA-5.1 & 5.5 EXX12, EXX13, EXX14, EXX19

3 SFA-5.1 & 5.5 EXX10, EXX11

4 SFA-5.1 & 5.5 EXX15, EXX16, EXX18, EXX48

4 SFA-5.4 other than austenitic and duplex EXX15, EXX16, EXX17

5 SFA-5.4 (austenitic and duplex) EXX15, EXX16, EXX17

6 SFA-5.18 ERXXS-X, EXXC-X, EXXC-XX

And so on


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QW-404.5 (Applicable only to ferrous metals.) A change in the chemical composition of the weld deposit from one A-Number to any other A-Number in Table QW- 442. Qualification with A-No.1 shall qualify for A- No. 2 and vice versa.

The weld metal chemical composition may be determined by any of the following.(a) For all welding processes from the chemical analysis of the weld deposit taken from the

procedure qualification test coupon.(b) For SMAW, GTAW, and PAW from the chemical analysis of the weld deposit prepared

according to the filler metal specification, or from the chemical composition as reported either in the filler metal specification or the manufacturer's or supplier's certificate of compliance.p pp p

(c) For GMAW and EGW - from the chemical analysis of the weld deposit prepared according to the filler metal specification or the manufacturer's or supplier's certificate of compliance when the shielding gas used was the same as that used to weld the procedure qualification test coupon.

(d) For SAW from the chemical analysis of the weld deposit prepared according to the(d) For SAW - from the chemical analysis of the weld deposit prepared according to the filler metal specification or the manufacturer's or supplier's certificate of compliance when the flux used was the same as that used to weld the procedure qualification test coupon.

In lieu of an A-Number designation, the nominal chemical composition of the weld deposit shall be indicated on the WPS and on the PQR. Designation of nominal chemical composition may l b b f h AWS l ifi i ( h h i ) h f ' dalso be by reference to the AWS classification (where such exists), the manufacturer's trade

designation, or other established procurement documents


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QW-442A-NUMBERS

Classification of Ferrous Weld Metal Analysis for Procedure Qualification

Analysis, % [Note (1)]Types of Weld

Deposit C Cr Mo Ni Mn SiDeposit C Cr Mo Ni Mn Si

1 Mild Steel 0.20 … … … 1.60 1.00

2 Carbon-Molybdenum 0.15 0.50 0.40-0.65 … 1.60 1.00

3 Chrome ( 0.4% to 2% )-Molybdenum 0.15 0.40-2.00 0.40-0.65 … 1.60 1.004 Chrome ( 2% to 6% )-Molybdenum 0.15 2.00-6.00 0.40-1.50 … 1.60 2.005 Chrome ( 6% to 10.5% )-Molybdenum 0.15 6.00-10.50 0.40-1.50 … 1.20 2.00

6 Chrome-Martensitic 0.15 11.00-15.00 0.70 … 2.00 1.00

7 Chrome-Ferritic 0.15 11.00-30.00 1.00 … 1.00 3.00

8 Chromium-Nickel 0.15 14.50-30.00 4.00 7.50-15.00 2.50 1.009 Chromium-Nickel 0.30 19.00-30.00 6.00 15.00-37.00 2.50 1.00

10 Nickel to 4% 0.15 … 0.55 0.80-4.00 1.70 1.00

11 Manganese-Molybdenum 0.17 … 0.25-0.75 0.85 1.25-2.25 1.00

12 Nickel-Chrome-Molybdenum 0.15 1.50 0.25-0.80 1.25-2.80 0.75-2.25 1.00

NOTE;

(1) Single values shown above are maximum.


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QW-404.30 A change in deposited weld metal thick-ness beyond the range qualified in QW-451 for procedure qualification or QW-452 for performance qualification, except as otherwise permitted in QW-303.1 and QW-303 2 When a welder is qualified using radiogra phy303.2. When a welder is qualified using radiogra- phy, the thickness ranges of QW-452.1 apply.


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QW-451 Procedure Qualification Thickness Limits and Test Specimens

QW-451.1 GROOVE-WELD TENSION TESTS AND TRANSVERSE-BEND TESTS

Type and Number of Tests RequiredRange of Thickness T yp q(Tension and Guided-Bend Tests) [Note (2)] of Base Metal, Qualified,

in. (mm) [Note (1) and (2)]

Thickness T of test Coupon Welded, in. (mm) Min. Max.

Maximum Thickness t of Deposited Weld Metal, Qualified,

in. (mm) [Note (1) and (2)]

Tension, QW-150

Side Bend

QW-160

Face Bend

QW-160

Root Bend

QW-160

Less than 1/16 (1.5) T 2T 2t 2 … 2 2

1/16 to 3/8 (1.5 to 10), incl. 1/16 (1.5) 2T 2t 2 Note (5) 2 2

Over 3/8(10) , but less than ¾ (19) 3/16 (5) 2T 2t 2 Note (5) 2 2

¾ (19) to less than 1 ½ (38) 3/16 (5) 2T 2t when t < ¾ (19) 2 (Note(4)) 4 … …( ) ( ) ( ) ( ) ( ( ))

¾ (19) to less than 1 ½ (38) 3/16 (5) 2T 2t when t ≥ ¾ (19) 2 (Note(4)) 4 … …

1 ½ (38) and over 3/16 (5) 8 (200)[Note(3)] 2t when t < ¾ (19) 2 (Note(4)) 4 … …

1 ½ (38) and over 3/16 (5) 8 (200)[Note(3)] 8 (2) when t ≥ ¾ (19) 2 (Note(4)) 4 … …

NOTES:NOTES:(1) The following variables further restrict the limits shown in this table when they are referenced in QW-250 for the process under consideration: QW-403.9, QW- 403.10, QW-403.32, QW-404.32 and QW-407.4. Also, see QW-202.2, QW-202.3, QW-202.4) provide exceptions that supersede the limits of this table.

(2) For combination of welding procedures, see QW-200.4

(3) For the welding processed of QW-403.7 only; other wise per Note (1) or 2T, or 2t, whichever is applicable.

(4) See QW-151 (.1, .2, .3) for details on multiple specimens when coupon thicknesses are over 1 in (25 mm).

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(5) Four side-bend tests may be substituted for the required face- and root-bend tests, when thickness T is 3/8 in. (10 mm) and over.


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QW-404.7 A change in the nominal diameter of the electrode to 1/4 i (6 ) Thi li it ti d t l h WPS iover 1/4 in. (6 mm). This limitation does not apply when a WPS is

qualified with a PWHT above the upper transformation temperature or when an austenitic material is solution annealed after welding.

QW-404.12 A change in the SFA specification filler metal classification or to a filler metal not covered by an SFA specificationclassification or to a filler metal not covered by an SFA specification, or from one filler metal not covered by an SFA specification to another which is not covered by an SFA specification.


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Positional capabilitiesElectrode

p

•E 8018

Tensile strength (PSI x 1000)

Flux coating & electrical characteristics

QW-404.6 A change in the nominal size of the electrode or electrodes specified in the WPS.

QW-404.33 A change in the filler metal classification, within an SFA specification, or, if not conforming to a filler metal classification within an SFA specification a change in theclassification within an SFA specification, a change in the manufacturer's trade name for the electrode or filler metal. When optional supplemental designators, such as those which indicate moisture resistance (i e XXXXR) diffusible hydrogen (i e XXXXmoisture resistance (i.e., XXXXR), diffusible hydrogen (i.e., XXXX H16, H8, etc.), and supplemental impact testing (i.e., XXXX-1 or EXXXXM), are specified on the WPS, only filler metals which conform to the classification with the optional supplementalconform to the classification with the optional supplemental designator(s) specified on the WPS shall be used.


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Question (1): A test coupon is prepared as follows: A 1.75 in. plate is welded to 1.75 in. plate with single process deposit the entire weld thickness, is 8 in. the maximum thickness of the weld metal permitted per QW-451.l?

Reply (1): Yes, except that further limits or exceptions may l t t d i N t (1) (3) d (5) f QW 451 1apply as stated in Notes (1),(3) and (5)of QW-451.1.


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Question: Is it a requirement that the actual deposited weld metal thickness used on the depos ed we d e a c ess used o equalification be shown on the WPS?

Reply: No.


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There are two terms used to classified welding positions in ASME Section IX:pos o s S Sec o :Welding test position e.g. 1G, 2G……..6G. Various test postion shown in fig QW-461 3 toVarious test postion shown in fig. QW-461.3 to 461.8Welding orking position e g F H OHWelding working position e.g. F, H……..OH. They are classified according to graphics in QW-461 1 (for groove welds) and 461 2 (for fillet461.1 (for groove welds) and 461.2 (for fillet welds)


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QW – 253 WELDING VARIABLES PROCEDURE SPECIFICATIONS (WPS)

Shield Metal-Arc (SMAW)Shield Metal Arc (SMAW)

Paragraph Brief of Variables Essential Supplementary

Essential Nonessential .1 + Position ×

QW 405 .2 ∅ Position × QW-405Positions

.3 ∅ ↑↓ Vertical welding × Legend:Legend: + Addition > Increase/greater than ↑ Uphill ← Forehand ∅ Change - Deletion < Decrease/less than ↓ Downhill → Backhand


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QW-405.1 The addition of other welding positions than those already qualified. See QW-120, QW-130, and QW-303.

QW-405 2 A change from any position to the vertical positionQW-405.2 A change from any position to the vertical position uphill progression. Vertical-uphill progression (e.g., 3G, 5G, or 6G position) qualifies for all positions. In uphill progression, a change from stringer bead to weave bead. This limitation does not applyfrom stringer bead to weave bead. This limitation does not apply when a WPS is qualified with a PWHT above the upper transformation temperature or when an austenitic material is solution annealed after welding.g

QW-405.3 A change from upward to downward, or from downward to upward, in the progression specified for any pass of a vertical weld, except that the cover or wash pass may be up or down.vertical weld, except that the cover or wash pass may be up or down. The root pass may also be run either up or down when the root pass is removed to sound weld metal in the preparation for welding the second side.


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Unless specifically required otherwise by the welding variables (QW-250), a qualification in any position qualifies the procedure for all positions. The welding process and electrodes must be suitable for use in the positions permitted by the WPSpositions permitted by the WPS.

A welder or welding operator making and passing the WPS qualification test is qualified for the position tested Seequalification test is qualified for the position tested. See QW-301.2.


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QW-405.2 A change from any position to the vertical position uphill progression. Vertical-uphill progression (e.g., 3G, 5G, or 6G position) qualifies for all positions. In uphill progression, a change p ) q p p p g , gfrom stringer bead to weave bead. This limitation does not apply when a WPS is qualified with a PWHT above the upper transformation temperature or when an austenitic material is solution pannealed after welding.

QW-405.3 A change from upward to downward, or from downward to upward, in the progression specified for any pass of a p , p g p y pvertical weld, except that the cover or wash pass may be up or down. The root pass may also be run either up or down when the root pass is removed to sound weld metal in the preparation for welding the p p gsecond side.


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preheating: the application of heat to the base metal immediately before a welding or cutting operation to achieve a specified minimum preheat temperature.

preheat temperature: the minimum temperature in the weld joint preparation immediately prior to the welding;

i th f lti l ld th i ior in the case of multiple pass welds, the minimum temperature in the section of the previously deposited weld metal, immediately prior to weldingweld metal, immediately prior to welding


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preheat maintenance: practice of maintaining the minimum specified preheat temperature, or some specified higher temperature for some required time interval after welding or thermal spraying is finished or until post weld heat treatment is initiateduntil post weld heat treatment is initiated.

i t t t (IP) th hi h t t t i thinterpass temperature (IP): the highest temperature in the weld joint immediately prior to welding, or in the case of multiple pass welds, the highest temperature in themultiple pass welds, the highest temperature in the section of the previously deposited


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4 Asme Sec Ix Wps Pqr Slide 71 to 105

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