S9074-AQ-GIB-010-248 (19950801) Distro A.pdf

NAVSEA S7074-AQ-GIB-O10 / 2 4 8 4Cli2280b 0000240 O T 9

NAVSEA Technical Publication

REQUIREMENTS FOR WELDING AND BRAZING

PROCEPURE AND PERFORMANCE

QUALIFICATION

puBus- 67 -ON OF COYUNDER, NAVAL SEA SYSTEMS COwrruwb

1 AUGUST 1995

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I NAVSEA TECHNICAL PUBLICATION CERTIFICATION SHEET 1 o f 1

CERTIFICATION STATEMENT

This is to CCItify thst responsible NAVSEA activities have reviewed the above identified document for tcEhn;cal adcqucy and suitability for the intended use. This form is for i n t a d NAVSEA management usc only, and does not imply contractd approval or acceptance of the technical publication by the Govunment.

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REVISION

NQ.

O

Q?m 1 August 1995

Complete Reprint Incorporated i original

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S9074-AQ-GIB-010/248

LIST OF EF~CTIVE PAGES

mas Title Page i through viii 1 through 128

REVISION IN EFFECT

Original (1 August 1995) Original (1 August 1995)

Original (1 August 1995)

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NAVSEA S9074-Ad-GIB-010 1 2 4 8 = 7022806 0000244 744

Pase Paragraph 1 . SCOPE scope ........................................... 1 1.1

2 . RE" DOCUMENTS

2.1 Government documents

2.1.1 Specifications and standards

2.1.2 Other Government publications

2 . 2 Other publications

2.3 Order of precedence

3 . DEFINITIONS

3.1 Tenns related to both welding and brazing

3.2 Terma related to welding

3 . 3 Terma related to brazing

4 .

4.1 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5

4.2.6 4.2.7 4.2.7.1 4.2.7.2 4.2.7.3 4.2.8 4.2.9 4.2.10 4.3 4.3.1 4.4 4.4.1 4.4.1.1 4.4.1.2 4.4.1.3 4.4.1.4

4.4.1.5 4.4.1.6 4.4.1.7 4.4.1.8

4.4.1.9

4.4.1.10

4.4.1.10.1 4.4.1.10.2 4.4.1.10.3 4.4.1.11

WELDING PROCEDURE QUALIFICATION

Scope General requirements Responsibility Certification of qualification testing Submittal for approval Vendor qualification Approval of procedure qualification for special

Waiver of qualification Qualification levels General Level I Welding position qualification limits Level II

Repair of teat aseembly Tranrrferral' of welding procedure qualification ..

Written welding procedure content ESSer~tid elements of a welding procedure Specific qualification requirements Groove welda and fillet welds Base material Test assembly size Test resembly joint design Test asaembly for qurrlification of root depoaition Material thickness qualification limits Post weld heat treatment Joint design qualification limits giraluation of procedure qualification test

Use of qualified groove butt weld procedures resulte for repair, buttering and build-up Qualification requirements for automatic/machine welding Pipe Plate special autoaatic/mrchine welds Pillet welds - welding on bare surfaces

.......................................... welds

16 .

iii Original

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CONTINTS . Continuod

Paragraph 4.4.1.12

4.4.2 4.4.2.1 4.4.2.2 4.4.3 4 . 4 . 4 4.4.5 4.4.5.1 4.4.5.2 4 - 4 - 6 4.4.7

4.4.0 4.4.9

4.5 4.5.1 4.5.1.1 4.5.1.2

4.5.1.3 4.5.2 4.5.2.1 4.5.2.2 4.5.2.2.1 4.5.2.3 4.5.2.3.1 4.5.2.4 4.5.2.4.1 4.5.2.5 4.5.2.6 4.5.3 4.6

4.6.1 4.6.2 4.7

4.7.1 4.7.2 4.7.3

4.7 .1 4.7.5 4.7.6 4.7-.7

4.7.8 4.7.9

4.7.10 4.0 rn Fillet welds . welding over primer-coated Qualification requirements for weld surfacing 17 surfaces 17

Weld cladding for corrosion resistance Hardfacing for wear reeietance Dissimilar metal welds Resistance welding Stud welding Method of qualification Procedure requirements Welds made without adding filler metal Seal welds, pipe socket welds and tube-to-tube-sheet welds (except internal tube-to-header welds in boiler components; for internal tube-to-header welds. see 4 . 4 . 9 ) Special welds Internal tube-to-header welds in boiler

Evaluation of procedure qualification weldments . 21 components 20

Nondestructive tests Visual Radiography. magnetic particle. liquid penetrant and ultrasonic Acceptance standards Destructive tests Transverse weld tension tcets Weld metal tension tests Titanium specimens Guided bend teats Criteria for acceptance Impact test Titanium weld metal toughness tests Hardness test Macro-etch specimens

Data accumulation and reporting for procedure

Test report Maintenance of records Changes requiring level I requalification of procedure Bane material Filler material Joint design Process Electrical characteristics Position Shielding gag (torch, purge gas and powder feed

Heat treatment Procedure change0 requiring Ievel'f requali-fication for cladding with A-45 twteri8ls Rep.ir weld8 of S-lOH base materi.1~ Procedure changes requiring level II rcquali-fication

SpCCi81 tests qualification

980)

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Paragraph 5 .

5.1 5.2 5.2.1 5.2.1.1 5.2.2 5.2.3 5.2.4 5.2.5

5.2.6 5.2.7 5.2.8 5.2.9 5.2.10 5.2.11 5.2.11.1 5.2.11.2 5.2.12 5.3 5.3.1

5.3.1.1 5.3.1.2 5.3.1.3 5.3.2 5.3.2.1 5.3.3 5.3.3.1 5.3.3.2 5.3.4

5.3.5 5.3.6

5.4

5.4.1 5.4.1.1 5.4.1.2 5.4.1.3 5.4.2 5.4.2.1 5.4.2.2 5.4.2.3 5.5 5.5.1 5.6

5.6.1 5.6.2 5.6.3

CO-S . Continuod

WELDING PERFORMANCE QUALIFICATION

Scope General requirements Remponeibility Waiver of qualification teete Prerequisite Method of establishing qualification Alternative qualification methods Qwlification limita by base material. filler material and process Qualification limita by position and joint type . 32 Requirements for special welds Repair to test asßemblies Retests Transferral of qualification Maintenance of qualification Renewal of qualification Loss of qualification Vision test requirements Performance qualification test requirements Manual, semi-automatic. automatic and machine welding Base material form, size, and thickness Requirements for repair welding of castings Automatic and machine welding Fuel gas welding Base material form. size and thickness Tack and fillet welder Base material form and size

Weld surfacing (hardfacing and corrosion-

Seal. eocket and tube-to-tubesheet welds Xnternal tube-to-header welding of boiler

Test and evaluation of qualification test components 35 aeeemblice Nondestructive inspection Visual examination Nonde8tructive test performance Acceptance etandarda Destructive tente Guided-bend tests Break test Macro-etch 8pecimcn Data rcMmrlation and records Records Changes requiring requalification of welder or welding operator

Base material Piller material Process

Extent of qualification resisting) v Original

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NAVSEA S907Y-AQ-GIB-010 /248 9022806 0000247 Y53

Paragraph 5.6.4 5.6.5 5.6.6 5.6.7 5.6.8

6 .

6.1 6.2 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6 6.3.7 6.3.8 6.3.8.1 6.3.9 6.3.9.1 6.3.9.2

6.3.9.2.1 6.3.9.2.2 6.3.9.3

6.3.10

6.3.10.1 6.3.10.2 6.3.10.3 6.3.10.4 6.3.10.5 6.3.10.6 6.3.10.7 6.4

6.4.1 6 . 4 . 2 6.4.3 6.4.4 6.4.5 6.4.6 6.4.7 6.4.8 6.4.8.1 6.4.9 6.4.10 6.4.11

S9074-AQ-GIB-010/248

-8 . Coatiauad .

Position Joint deeign Accessibility Shielding gas Fabrication documents requirements

BRAZING

scope General requirements Brazing procedure qualification Responsibility Certification of qualification testing Approval. and data provision requirements Test report Maintenance of records Vendor qualification Transferral of brazing procedure qualification .. 40 Written brazing procedure content Essential elements Procedure qualification teat requirements Qualification test assemblies Qualification assembly destructive test evaluation

Tension test Peel test Qualification aasembly nondestructive test

Changes requiriag requalification of brazing evaluation 42 procedures B86e material Brazing 8llOy Brazing process P l u ............................................. 42 .

Purnace atmosphere Induction brazing

Brazer and br8zing operator performaace Position 43 qualification Responsibility Prerequiaite Method of e8trbli.hbg qualification Alternate qulifiation methods Tramferra1 of qualification Qualification requirements

Maintenance of qualification Reaewal of qualification Requalificrtion requirements Test recorde Virrion test requirement

Rete6t8

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CONTENTS - Continuad

Paragraph 7.

7.1

Table I.

II.

111.

IV.

V.

VI.

VII.

VIII.

IX.

X.

XI.

XII

XIII.

XIV.

m.

XVI .

Figure 1.

2.

3 .

4 .

4A.

5 .

PaQc

NOTES

Cancelled specifications

TABLES

Grouping of base materials (welding) Grouping of filler materials (welding) procedure cross-qualification limitations Essential elements of a welding procedure thickness limits requirements ance qualification) Performance qualification - position limitations.. 88 Performance qualification test limitations Performance qualification test evaluation

Material combinationo and brazing alloy

Grouping of base materials for brazing procedure

Grouping of brazing alloys for procedure and

Type and number of test specimens required and

Grouping of baee/filler materials for welding

Welding procedure qualification position

Welding procedure qualification material

Welding procedure qualification assembly test

Grouping of filler metals and process combina-tiona for welder or welding operator (perform-

.................................... requirements 91 requirements and performance qualification performance qualification qualification) qualification range of thickness qualified (brazing procedure

Axial load and torque values for procedure

?IGURXS

Typical welding procedure qualification test Positions of welding 99 plate and reconmended locations for removal

Typical welding procedure qualification pipe

Test assembly for procedure qualification of of test specimens

.................................. test assembly 102 cladding for corrosion-resistance except for circumferential welding applications on shafting 103

A-45 cladding for corrosion-resistance cladding for circumferential welding of shfting

Test assembly for procedure qualification of

Test assembly for procedure qualification of vii Original

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Figure

NAVSEA S9074-Ad-GIB-010 1248 7022806 0000249 226 m

S9074-AQ-GIB-O10/248

CO=S - Continuad

6 .

7 .

8 .

9.

10.

11.

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

23.

24.

25.

2 6 .

Procedure qualification test plate for hard- 'facing

Typical location of test specimens from dis-similar metal welded test plate Test assembly for welding bare surfaces Test assembly for welding over primer-coated surfaces Stud testing apparatus Sample for reporting qualification &ta Performance qualification test nos. 2A and 28 for fuel gas welding (plate) Performance qualification test no. 38 for fuel

Performance qualification test no. 1 for arc gas welding (pipe)

Performance qualification tests nos. 3 and 4 for welding

Performance qwlifxation test no. B for tack arc welding (pipe!

Performance qualification test no. 9 for weld welders

Sample performance qualification record surfacing

Reduced section tension specimen (plate) for brazed lap-type joints Lap joint peel specimen Typical layout and construction for restricted accessibility qualification teat assembly positions Performance qualification tests nos. 5 and 6 for arc welding (pipe) Brazing positions Heat affected zone ( H A 2 1 Charpy notch location ...

Mockup and orientation of assembly for performance qualification for manual welding of tube-to-header joint welds arc welding - keyhole technique ................. Performance qualification test no. 10, plaama-

1 1 ' I

12 o

12 6 viii Original

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1. SCOPE

1.1 m. Thie document contains the requirements for the qualification ot welding and brazing procedures, welders, welding operatore, brazers and brazing operators that must be met prior to any production fabrication. It includes manual, semiautomatic, autoaratic and machine welding and brazing of ferrous, nonferrous, and diseimilar metals. The qualification tests required by this document are devised to demonstrate the adequacy of the welding or brazing procedures and to denmnstrate the ability of welders, brazers, welding operators and brazing operators to produce sound welds or brazes.

1.2 Except as required by 1.2.1, procedures and personnel previously qualified to earlier revisions of this document, for which records are available and qualifications have been maintained, are acceptable for use to this revision.

However, the authorized representative may require requalification to this revieion on a case-by-case basis where both of the following apply: (1) he has specific concerns about the adequacy of procedures or ability of personnel to produce welds of intended integrity or which meet requirements of the applicable fabrication document and (2) the existing qualification requires requalification by this document. These requirements also apply to the visual inspection training of persowel required by this document. It is not the purpose of this document to require extensive requalification of previously qualified procedure8 or personnel. Changes to existing procedures and procedure and personnel qualifications, and qualification of new procedures and personnel performance Shall be accomplished in accordance with the requirements of this document.

1.2.1 Procedures involving the use of MIL-12018"2 or MIL-120s-1 elec-trodes previously qualified to other revisions of this document are not approved for use when this revision is invoked unless specifically approved by NAVSEA.

1.3 This document contains both mandatory requirements (indicated by the word "shall") designed to serve as standards applicable to methods, materials, and inspection, and guidance information (indicated by either the word "should" or " m a y " ) . Guidance information í e recornended but is not mandatory.

1.4 For existing welding procedures and personnel qualifications in accordance with NAVSEA 250-1500-1, those qualifications may be used as discussed below in lieu of the qualification requirements of this document, provided the prior qualification is for base and filler materials and welding processes normally allowed by NAVSEA 250-1500-1:

(a) Welding procedure qualification evidence which support8 an approved welding procedure in accordance with NAVSEA 2504500-1 may be considered ap-proved, in lieu of welding procedure qualification evidence required by this document, even though the nondestructive and destructive tests conducted on the qualification test assembly may have differed from those required by this document. fn addition to the base and filler materials which this qualification evidence allows to be welded in accordance with this document, base and filler -terials allowed by the NAVSEA 250-1500-1 approved welding procedure may also be considered qualified. The welding procedure shall be rewritten, as necessary, to conform to the requirements of this document (e.g., to reflect differences in requalification requirements).

(b) Welding pcraonnel qualifications in accordance with NAVSEA 250-1500-1 my uscd in lieu of qualifications in accordance with this document provided personnel a m train& on the applicable differences. The -tent of qurlification shall be as allowed. in either documtat.

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NAVSEA S9074-Ad-GIB-010 /2Y8 9022806 0000251 984 M taë solicitation fonn a part

SPECIFICATIONS

FZDERAL

O-F-499

OQ-A-200

QQ-A-200/1

QQ-A-200/4

QQ-A-200/5

QQ-A-200/6

QQ-A-200/7

QQ-A-225

QQ-A-225/1

QQ-A-225/2

QQ-A-225/7

QQ-A-2SO

OQ-A-250/1

QQ-A-250/2

QQ-A-250/6

QQ-A-aSO/B

QQ-A-250/10'

40-8-626

QQ-B-639

40-8-654

QQ-C-390

QQ-C-450

QQ-N-281

49-5-763.

WW-P-404

of this document to the extent specified herein.

Flux Brazing, (Silver Brazing Filler Metal, L o w Melting Point) .

Aluminum Alloy, Bar, Rod, Shapes, Structural Shapes, Tube and'wire, Extruded: Oeneral Specification for.

Wire , Extruded.

Wire, Extruded.

Wire, Extruded.

Wire, Extruded.

Wire, Extruded.

Special Shapes; Rolled, Drawn, or Cold Finished;

General Specification for.

Aluminum Alloy Bar, Rod, and Wire; Rolled, Drawn, or Cold Finished, 1100.

Aluminum Alloy Bar, Rod, and Wire; Rolled, Drawn, or Cold Finished, 1003.

Aluminum Alloy 5052, &r, Rod, and Wire; Rolled, Drawn, or Cold Finished.

Aluminum and Aluminum Alloy Plate and.Sheet:

General Specification for.

Aluminum 1100, Plate and Sheet.

Aluminum Alloy 3003, Plate and Sheet.

Aluminum Alloy 50B3, Plate and Sheet.

Aluminum Alloy 5052, Plate and Sheet.

Aluminum Alloy 5454, Plate and Sheet.

Br8ßE, Leadcd Urd Nonleaded: Rod, shapc88 Forgings, Aluminum Alloy 3003, Bar, Rod, Shapes, Tube and

Aluminum Alloy 5083, Bar, Rod, Shapes, Tube and

Aluminum Alloy 5086, Bar, Rod, Shapes, Tube and

Aluminum Alloy 5454, Bar, Rod, Shapes, Tube and

Aluminum Alloy 5456, Bar, Rod, shapes, Tube and

Aluminum and Aluminum Alloy Bar, Rod, Wire, or and Flat Products with Fiaished Edges (Bar and Strip) .

Strip).

Braßo, Nav8l: Flat Producte (Plate, Bar, Sheet, and

Brazing Alloy., Silver.

Copper Alloy Casting. (Including Cast Bar).

Copper-Aluminum Alloy aluminum Bronze) Plate, Sheet, Strip, and Bar (Copper Alloy Numbers 606, 610, 613, 614, urd 630).

Nickel-Copper Alloy mr, Rod, Plate, Sheet, Strip, Wire, Forging., and Structur8l 8nd Special Shaped Sectione.

Steel Bars, Wire, Shapes, and Forgings, Corrosion Resisting.

Pipe, Steel, (Seamless rad Welded, Black and Zinc- Coated (Galvanized) ) .

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FEDERAL (Continued)

WW-T-700

WW-T-700/1

WW-T-700/2

WW-T-700/5

MILITARY

MIL-T-1368

MIL-T-3595

MIL-T-6736

MIL-W-68S8

MIL-T-8504

MIL-T-9046

MIL-T-9047

MIL-T-15005

MIL-8-15382

MIL-C-15726

MIL-S-16216

MIL-T-16286

MIL-T-16420

MIL-R-17131

MIL-N-17163

MIL-S-18728

MIL-S-18729

MIL-E-19933

MIL-T-20219

MIL-P-20236

MIL-F-20670

MIL-A-21UO

MIL-E-21562

MIL-S-21952

MIL-E-22200

- Tube,'Aluminum and Aluminum Alloy, Drawn, Seamless,

- Tube, Aluminum, Drawn, Seamless, 1100. - Tube, Aluminum, Alloy, Drawn, Seamleise, 3003. - Tube, Aluminum Alloy, Drawn, Seamless, 5086.

Qeneral Specification for.

- Tube and Pipe, Nickel-Copper Alloy, Seamless and

- Tubing, Phosphor Bronze: (cda. No. 510) Round, Seam-

- Tubing, Chrome-Molybdenum, 4130 Steel, Seamless and

- Welding, Resistance: Spot and Seam. - Tubing Steel, Corrosion-Resistant (3041, Aerospace

Vehicle Hydraulic Syeteme, Annealed, Seamlese and Welded. - Titanium and Titanium Alloy, Sheet, Strip and Plate. - Titanium and Titanium Alloy Bars (Rolled or Forged)

- Tubes, 70-30 and 90-10 Copper Nickel Alloy, Con-

- Bolt, Firebrick Anchor. - Copper-Nickel Alloy, Rod, Flat Products (Flat Wire,

- Steel Plate, Alloy, Structural, High Yield

- Tube, Steel, Seamless, Marine Boiler Application. - Tube, Copper-Nickel Alloy, Seamless and Welded

- Rods and Powders, Welding, Surfacing. - Nickel-Copper Alloy, Wrought; ( 5 5 - 6 0 Percent

- Steel Platt, Sheet and Strip, Alloy 8630, Aircraft

- Steel Plate, Sheet, and Strip, Alloy 4130, Air-

- Electrodes and Rods - Welding, Bare, Chromium

- Tube, Braas, Voice and Pneumatic. - Fittings, Tube and Pipe, Butt-welding, 300 P.S.1

- Flangco, Pipe, Carbon Steel, 150 P.S.1, W.S.P (For

- Aluminum-Alloy Castings, High Strength. - Electrodes and Rods - Welding, Bare, Nickel Alloy. - Steel ( W - 8 0 and HY-100) Bars, Alloy. - Electrodes, Welding, Covered; General Spccifica-

Welded.

less.

Welded, Aircraft Quality.

and Reforging Stock, Aircraft Quality.

denser and Heat Exchanger.

Strip, Sheet, Bar, and Plate) and Forgings.

Strength (HY-80 and HY-100).

(Copper Alloy Numbers 715 and 706) .

Nickel) Low Permeability.

Quality.

craft Quality.

and Chromium-Nickel Steels.

and 775OP. Maximum.

Naval Shipboard Use).

tion for.

MIL-B-22200/1 - IElectrodes, Welding, Mineral Covered, Iron-Powder, Low-Hydrogen Medium and High Tensile Steel, As , Welded or Stress-Relieved Weld Application.

Nickel Steel) .

and Cobalt Base Alloy.

Alloy.

Powder, & W - H y d t O g C n , Low-Alloy Steel fat Hardeaing and Tempering Heat Treatment Appli-catione Only.

MIL-E-22200/2 - Eltctrodea, Welding, Covered (Austenitic Chromium- MIL-$-22200/3 - Electrodes, Welding, Covered: Nickel Base Alloy;

MIL-B-22200/4 - Electrodee, Welding, Covered, Copper-Nickel MIL-E-22200/5 - Electrodes, Welding, Mineral Covered, Iron-

3 original

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NAVSEA S9074-AQ-GIB-010 /2Y8 9022806 0000253 757 m

MILITARY (Continued)

MIL-E-22200/6 -

MIL-P-22200/7 -

MIL-E-22200/8 -

MIL-E-22200/9 -

MIL-E-22200/10-

MIL-S-22698

MIL-S-23008

MIL-S-23009

MIL-S-23193

MIL-S-23194

MIL-S-23195

MIL-S-23196

MIL-T-23226

MIL-T-23227

MIL-N-23228

MIL-N-23229

MIL-S-23284

MIL-1-23413

MIL-F-23467

MIL-F-23508

MIL-P-23509

MIL-T-23520

MIL-E-23765

MIL-E-23765/1 -

MIL-E-23765/2 -

MIL-E-23765/3 -

MIL-E-23765/4 -

MIL-S-24093 -

MIL-N-24106 -

MIL-T-24107 -

Electrodes, Welding, Mineral Covered, Low- Hydrogen, Medium and High Tensile Steel.

Electrodes, Welding, Covered, Molybdenum Alloy Steel Application.

Electrodes, Welding, Covered, Low-Hydrogen, and Iron-Powder tow-Hydrogen, Chromium-Molybdenum Alloy Steel and Corrosion Resisting Steel.

Electrodes, Welding, Mineral Covered Low-Hydrogen or Iron-Powder, Low-Hydrogen, Nickel- Manganese-Chromium-Molybdenum Alloy Steel for Producing HY-130 Weldments for "Welded Applications.

Powder, Low-Hydrogen Medium, High Tensile and Higher-Strength Low Alloy Steels.

Steel Plate ,and Shapes, Weldable Ordinary Strength and Higher Strength: Hull Structural.

Steel Castings, Alloy, High Yield Strength ( W - B O and KY-100) .

Steel Forgings, Alloy, High Yield Strength (HY-80

Steel, Corrosion Resistant; Castings.

Steel Forgings Carbon and Alloy.

Steel Bars and Forgings Corrosion Resistant.

Steel Plate, Sheet and Strip, Corrosion

TUX! and Pipe, Corrosion-Resistant Steel, Seam-

Tube and Pipe, Nickel-Chromium-Iron Alloy.

Nickel Chromium Iron Alloy Plate, Sheet and

Nickel-Chromium-Iron Alloy Bars and Forgings.

Steel Forgings, Carbon and Alloy, for Shafts, Sleeveß, Couplings, and Stocks (Rudders and Diving Planeß) .

fn6ert6, Welding, Filler Material, Coiled and Solid Rings.

Fittings and Flanges, Wrought, Seamless, Butt and Socket Welding, Austenitic Corrosion- Resistant Steel.

Fitting6 and Flanges, Wrought Seamlese, Butt and Socket Welding, Nickel Chromium Iron Alloy.

Pittings and Flanges, Wrought Seamless Butt and Socket Welding, Nickel Copper Alloy.

Tube and Pipe, Nickel-Coplkr Alloy, Seamless Air Melted.

Electrodes and Rode - Welding, Bare, Solid and Alloyed Cored, General Specification for.

Electrode8 and Rodo - Welding, Bare, Solid and Alloyed Cored, Ordinary Strength and L o w Alloy Steel.

Electrodeß and R o d . - Welding, Bare, Solid, or Alloyed Cored, Low Alloy Steel.

Electrodeß and R o d a - Welding, Bare, Solid Copper Electrodes-Welding, Bare, Solid; and Fluxea, Steel Forging., Carbon and Alloy Heat Treated.

Nickel Copper Alloy Bars, Rods, and Forgings.

Tube, Copper (Seamless) (Copper Alloy Numbers

Electrodes, Welding, Mineral Covered, Iron-and IN-100) .

Resistant.

less.

Strip.

Alloy.

submerged Arc Welding, C8rbon and Low Alloy Steels.

C10100, C10200, C10300, C10800, C12000, C12200, and Cl42001 .

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MILITARY (Continued)

MIL-N-24114 -

MIL-L-24128 -

MIL-S-24149 -

MIL-S-24149/1 -

MIL-S-24149/2 -

MIL-S-24149/3 -

MIL-S-24149/4 -

MIL-S-24149/5 -

MIL-S-24149/6 -

MIL-S-24238 -

MIL-N-24271 -

MIL-P-24338 -

MIL-F-24339

MIL-F-24342

MIL-E-24355

MIL-S-24371

MIL-E-24403

MIL-E-24403/1

MIL-E-24403/2

MIL-S-24451

MIL-B-24480

MIL-S-24645

DOD-F-24669

DOD-F-24669/1

DOD-F-24669j2

DOD-F-24669/6

DOD-F-24669/7

Nickel Chromium Iron Age Hardenable Alloy Bars, Rods, and Forgings.

Low Carbon Chromium Steel Bars, Rods and Forgings.

S t u d s , Arc Welding, and Arc Shields (Ferrules), General Specification for.

Studs, Arc Welding, and Arc Shields (Ferrules);

Type I, Class 1, 2, 3, and Type II, Class 1, 4, 5, 5A, 6 , Carbon Steel, for Direct Energy k c Welding.

Studs, Arc Welding, and Arc Shields (Ferrules);

Typt III, Class 1, 2, 3 , and Type IV, Class i, 2, 3, 4 , 5, 6, Aluminum Alloy, for Direct Energy Arc Welding.

Studs, Arc Welding, and Arc Shields (Ferrules) ;

Type V, Class 1, 4, 5, SA, Corrosion-Resistant Steel, for Direct Energy Arc Welding.

Studs, Arc Welding, Type VI, Class 1, 2, 3, Carbon Steel, for Stored Energy (Capacitor Discharge) Arc Welding.

Studs, Arc Welding; Type VII, Class 1, 2, 3, Aluminum Alloy, for Stored Energy (Capacitor Discharge) Arc Welding.

Studs, Arc Welding; Type VI11 , Class 1, 2 , 3, Corrosion-Resistant, for Stored Energy (Capacitor Discharge) Arc Welding.

Steel Plate Carbon and L o w Alloy.

Nickel-Chromium-Iron Alloy Castings.

Pipe, Carbon steel, Seamlesa.

Fittings and Flanges, Wrought, Seamless, Butt and Socket Welding Carbon Steel.

Fitting and'Flange, wrought Seamless, Butt and Socket Welding 70-30 Copper Nickel Alloy.

Electrodes, Welding, Bare, Solid, Nickel Manganeae-Chromium-MolyMcnum Alloy Steel for Producing HY-130 Weldments for "Welded Applicationm.

Steel Plate, Alloy, Structural, High Yield Strength (By-130).

Electrodes - Welding, Flux Cored General Specifi-cation for.

Electrodes - Welding, Flux Cored, Ordinary Strength and Low Alloy Steel.

Electrodes - Welding, F l w Cored, Low-Alloy Steel.

Steel Heat Treated Heads, Alloy Structural, High Yield.Strength ( W - 8 0 and FiY-100).

Bronze, Nickel Aluminum (UNS No. C95800) Castings for Seawater Service.

Steel Plate, Sheet or Coil, Age-Hardening Alloy, Structural, High Yield Strength (HSLA-80).

Forgings and Forging Stock, Steel Bars, Billets and Blooms, General Specification for. (Metric) - Forgings and Forging Stock, Steel (Carbon and

- Forgings and Forging Stock, Steel Bars and

- Forgings and Forging Stock, Steel Bar6 and

Alloy) Blooms, Bare, Billets and Slabs. (Metric) '

Billets - Chromium-Molybdenum Alloy. (Metric) Billets, Corrosion Resisting; for Reforging.

(Metric)

Billets, Corrosion Resisting; Naval Steam Turbine Part6 Ume. (Metric)

- Forgings and Forging Stock, Steel Bars and

5 Original

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MILITARY (Continued)

MIL-F-24669/8

MIL-P-24691

MIL-P-24691/1

MIL-P-24691/2

MIL-P-24691/3

MIL-C-24707/1

MIL-C-24707/2

MIL-C-24707/3

MIL-C-24707/6

MIL-C-24723

- Forgings and Forging Stock, Steel for Integral Steam Turbine Rotors. - Pipe and lWe, Carbon, Alloy and Stainless Steel, Seamless and Welded, General Specification for. - Pipe and Tube, Carbon Steel, Stainless. - Pipe and Tube, Chromium-Molybdinum Steel,

- Pipe and Tube, Corroeion-Resistant, Stainless

- Castings, Ferrous, for Machinery and Structural

- Castings, for Pressure Containing Parts Suitable

- Castings, Ferrous, Corrosion-Resistant, Austenitic,

- Castings, Ferrous, Chromium Steel, for Pressure-

Seamless.

Steel, Seamless or Welded.

Applicatiom.

for High Temperature Service.

Chromium-Nickel .

Containing Farts Suitable for High Temperature Service. - Castings, Nickel-Copper Alloy.

STANDARDS

MILITARY

MIL-STD-22 - Welded Joint Designs.

MIL-STD-271 - Requirements for Nondestructive Testing Methods.

MIL-STD-1628 - Fillet Weld Size, Strength, and Efficiency Deter-

MIL-STD-1681 - Fabrication, Welding, and Inspection of HY-130 MIL-STD-1688 - Fabrication, Welding, and Inspection of HY-80/100 MIL-STD-1689 - Fabrication, Welding, and Inspection of Ships MIL-STD-2035 - Nondestructive Testing Acceptance Criteria.

mination.

Submarine Hull.

Submarine Applications.

Structure.

2.1.2' Other Government Publicatio=. The following other Government publications fonn a part of this document to the extent specified herein. Unless otherwise specified, the issues shall be thoae in effect on the date of the solicitation.

PUBLICATIONS

NAVAL S m SYSTBMS COMmND (NAVSEA) 0900-LP-001-7000 - F8brication and Ia8pection of Brazed Piping 0910-LP-331-5300 - Repir and Overhaul Main Propulsion

Symteau .

Boilers.

750-1500-1 - welding Staadard (Copiem of"specifications, standards, aad publications required by contrac-tors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.)

document to the extent specified herein. UnleBo otharwime apecified, the iaeues of the docwnats which u e DOL) 8dopted mhall be those li8ted in the iseue of the -ISS specified in the solicitation. The imsuee of documents which have not been adopted rrhall be those ia effect 0x1 the date of the cited DoDISS.

2.2 gther -. The following document8 form 8 part of this

AEROSPACE MATERIALS SPECIFICATION (AMSI

AMs 6530 - Tubing Seamless-0.55 Ni-0.50 Cr-0.20 Mo

(0.20-0.34C).

(Application for copies ehould be addressed to the Society of Automotive jhgineers, 400 Conunonwealth Drive, Warrendale, PA 15096.)

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NAVSEA S9074-AQ-GIB-010 /248 = 7022806 0000256 466 M

AMERICAN SOCIETY FOR TESTING AND MATERIALS (AST")

A 176 - Stainless Steel and Heat-Resisting Chromium Steel, Plate, Sheet and Strip A 178 - Standard Specification for Electric-Resistance-Welded

Carbon Steel and Carbon-Manganese Steel Boiler Tubes.

(DoD adopted)

A 182 - Standard Specification for Forged or Rolled Alloy Steel ' Pipe Flanges, Forged Fittings, and Valves and Parts for

High Temperature Service. (DoD adopted) tenitic Alloy-Steel Boiler, Superheater and Heat- Exchanger Tubes. (DoD adopted) able for Fusion Welding, for High Temperature Service.

(DoD adopted)

A 217 - Martensitic Stainless Steel and Alloy Steel Castings for Pressure-Containing Parts Suitable for High-Temperature Service. (DoD adopted)

Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels. (DoD adopted)

Steel Bars and Shapes.

Steel, Manganese-Molybdenum and Manganese-Molybdenum Nickel. ( M D adopted)

Pipe for High-Temperature Service.

Testing of Steel Products. (DoD adopted)

Steel Forgings. (DoD adopted)

Preseure Service.

A 213 - Standard Specification for Seamless Ferritic and Aua- A 216 - Standard Specification for Steel Castings, Carbon, Suit-

A 240 - Standard Specification for Heat-Resisting Chromium and

A 276 - Standard Specification for Stainless and Heat-Resisting A 302 - Standard Specification for Pressure Vessel Platte, Alloy

A 335 - Standard Specification for Seamless Ferritic Alloy-Steel A 370 - Standard Test Methods and Definitions for Mechanical

A 473 - Standard Specification for Stainless and Heat-Resisting A 487 - Standard Specification for Steel Castings Suitable for A 494 - Standard Specification for Castings, Nickel and Nickel

A 515 - Standard Specification for Pressure Vessel Plates, Carbon Alloy.

Steel for Intermediate- and Higher-Temperature Service.

(DoD adopted)

Steel, for Moderate- and Lower-Temperature Service.

(DoD adopted)

A 537 - Standard Specification for Pressure Vessel Plates, Heat- Treated, Carbon-Manganese-Silicon Steel. (DoD adopted)

A 743 - S t m r d Specification for Castings, Iron-Chromium, Iron- Chromium-Nickel, Corrosion Resistant, for General Application. (DoD adopted)

A 744 - Standard Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service. (DoD adopted]

A 757 - Ferritic and Martensitic Steel Casting8 for Pressure- Containing and Other Applications for Low-Temperature Service.

Machines. (DoD adopted)

A 516 - Standard Specification for Pressure Vessel Plates, Carbon

B 16 - Free-Cutting Brass Rod, Bar, and Shapes for use in Screw

B 21 - Naval Brass Rod, Bar, and Shapes. (DoD adopted) B 26 - Aluminum-Alloy Sand Castings. (DoD adopted) B 36 - Braes Plate, Sheet, Strip, and Rolled Bar. ( D o D adopted) B 43 - Seamless Red Brass Pipe, Standard Sizes. (DoD adopted) B 88 - Seamlesa Copper Water Tube. (DoD adopted) B 98 - Copper-Silicon Alloy Rod, Bar , and Shapes. (DoD adopted) B 121 - Leaded Brass Plate, Sheet, Strip, and Rolled Bar. (DoD adopted)

7 Original

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NAVSEA S9074-AQ-GIB-010 /248 W 9022606 0000257 3T2 W

ASTM (Continued)

. B 124 - Copper and Copper-Alloy Forging Rod, Bar, and Shapes.

B 138 - Manganese Bronze Rod, Bar, and Shapes. (DoD adopted) B 139 - Phosphor Bronze Rod, Bar, and Shapes. (DoD adopted) B 150 - Aluminum Bronze Rod, Bar, and Shapes. (000 adopted) B 152 - Copper Sheet, Strip, Plate, and Rolled Bar. ( D o D adopted) B 166 - Standard Specification for Nickel-Chromium-Iron Alloys

(DOD adopted)

(UNS NO6600 and NO66901 Rod, Bar, and Wire. (DoD adopt-ed) adopted) B 169 - Aluminum Bronze Plate, Sheet, Strip, and Rolled Bar. (DoD

B 209 - Standard Specification for Aluminum and Aluminum-Alloy B 265 - Standard Specification for Titanium and Titanium Alloy B 283 - Copper and Copper-Alloy Die Forging (Hot-Pressed). (DoD

B 337 - Standard Specification for Seamless and Welded Titanium

B 338 - Standard Specification for Seamless and Welded Titanium

L Sheet and Plate. (DoD adopted)

Strip, Sheet, and Plate.

adopted) and Titanium Alloy Pipe. ( M D adopted) and Titanium Alloy Tubes for Condensers and Heat Exchangers. (DoD adopted)

B 346 - Standard Specification for Titanium and Titanium Alloy Bars and Billets.

B 363 - Standard Specification for Seamless and Welded Unalloyed Titanium and Titanium Alloy Welding Fittings.

B 367 - Standard Specification for Titanium and Titanium Alloy Castings.

B 369 - Copper-Nickel Alloy Castings. (DoD adopted) B 381 - Standard Specification for Titanium and Titanium Alloy

Forgings.

B 443 - Standard Specification for Nickel-Chromium-Molybdenum-

Columbium Alloy (UNS NO66251 Plate, Sheet, and Strip.

B 444 - Standard Specification for Nickel-Chromium-Molybdenum-

Colwabium Alloys (UNS NO66251 Pipe and Tube.

B 446 - Standard Specification for Nickel-Chromium-Molybdenum-

Columbium Alloy (UNS NO66251 Rod and Bar.

B 564 - Standard Specification for Nickel Alloy Forgings.

(DoD 8dopted) B 574 - Standard Specification for Low-Carbon-Nickel-Molybdenum-

Chraa.ium Alloy Rod.

B 575 - Standard Specification for Low-Carbon Nickcl-Molybden*.?b

Chromium Alloy Plate, Sheet, and Strip.

B 622 - Standard Specification for Seamless Nickel and Nickel

Cobalt Alloy Pipe and Tube.

E 172 - Standard Practice for Describing and Specifying the

Excitation Source in Emission Spectrochemical Analysis.

$354 - Standard Test Methods for Chemical Analysis of High

Tsmpet8ture Electrical, Magnetic, and Other Similar Iron, , Nickel, and Cob8lt Alloys.

Materials. (DoD 8doptedl E 604 - Standard Test Method for Dynamic Te8r Testing of Metallic

(Application for capice ehould be 8ddreeaed to the &nericm Society for Teoting and Materialo, 1916 Race Street, Phil8delphia. PA 19103.)

AMERICAN WELDING SOCIETY (AWS)

~ 3 . o - Standard Welding T e m and Definitions. (DoD adopted) ~5.1 - Specification for Covered Carbon Steel Arc Welding Elec-

~ 5 . 2 - Specification for Iron and Steel Oxyfuel Gas Welding trodes. (DoD adopted)

Rods. (DoD adontedl

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A5.4 - A5.s -

AS.6 -

As.7 - A5.8 -

. = .9 -

As.10 - A5.11 - A5.13 -

AS.14 -

AS.16 -

A5.23 - A5.21 -

AS.28 -

B4.0 -

Specification for Covered Corrosion-Resisting Chr-ium and Chromium-Nickel Steel Welding Electrodes. (DoD adopted) Specification for L o w Alloy Steel Covered Arc welding Electrodes. (DoD adopted) Specification for Covered Copper and Copper Alloy Arc Welding Electrodes. (DoD adopted) Specification for Copper and copper Alloy Bare Welding and Electrodes. (DoD adopted) Specification for Filler Metals for Brazing and Braze Welding.

Specification for Corrosion Resisting Chromium and Chromium-Nickel Steel Bare and Composite Metal Cored and Stranded Welding Electrodes and Welding Rods. (DoD adopted) Specification for Aluminum and Aluminum Alloy Bare Welding Roda and Electrodes. (DoD adopted) Specification for Nickel and Nickel Alloy Covered Welding Electrodes.

Specification for Solid Surfacing Welding Rods and Electrodes. (DoD adopted) Specification for Nickel and Nickel Alloy Bare Welding Rods and Electrodee.

Specification f o r Titanium and Titanium Alloy Bare Welding Roda and Electrodes. (DoD adopted) Specification for L o w Alloy Steel Electrodes and Fluxes for Submerged Arc Welding.. (DoD adopted) Specification for Copper and Copper Alloy Rods for Oxyruel Gas Welding.

Specification for L o w Alloy Steel Filler Metals for Gas Shielded Arc Welding. (DoD adopted) Standard Methods for Mechanical Testing of Welds.

(DoD adopted)

(Application for copiee should be addressed to the American Welding Society, InC., 550 NW LeJeune Road, P.O. Box 351040, Miami, FI., 33135.)

AMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)

ASNT Publication No. 103 - Glossary of Tema Frequently Used in

Nondeetructive Testing.

(Application for copies should be addressed to the American Society for Nondestructive Testing, 1711 Arlingate Lane, P.O. Box 28518, Columbus, OH 43228-0518.)

(Nongovernment standards are generally available for reference from librar-ies. They are also distributed among nongovernment etandards bodies and using Federal agencies.)

2.3 m e r of Dre edencq. Except for fabrication documents, in the event of a conflict-of this document and the references cited herein, the text of this document shall take precedence.

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3. DEFINITIONS

3.1 Terms related to both weldinu and brazinq.

3.1.1 Genera&.

(a) Except as noted herein, welding and brazing nomenclature and

(b) Except as noted herein, nondestructive testing nomenclature and definitions ehall conform to AWS A3.0.

definitions shall conform to ASNT publication No. 103.

3.1.2 ACCeDtabh. An item is acceptable when it complies with or conforms to the applicable standard or specification.

3.1.3 Activitv. The term activity refere to a l l sites of an organization, under the same quality assurance management and using the same quality assurance plan, performing work to which this document is applicable. The quality assur-ance manual shall contain a paragraph approved by an authorized representative, specifically addressing the transfer of qualified procedures from one site to another within the activity.

3.1.4 ADDlicable fabrication document. Applicable fabrication document is the document invoked by the contract, purchase order or circular of requirements governing the work being accomplished.

3.1.5 ADDroval (aDDrOVt2d). Approval means the item under consideration requires acceptance by NAVSEA or its authorized representative. "Approval" or "approved" as used herein shall be by the IUAVSEA authorized representative unless NAVSEA approval is specified.

3.1.6 Authorized reDresentative. An authorized representative is any Government representative specifically authorized to approve equipment, material or procedures within the scope of-this document for NAVSEA. They are as follows:

For Government shipyards: The delegated representative of the Shipyard Cocanunder.

For conmercial shipyards: The delegated repreeentative of the Supervi8or of Shipbuilding, Conversion and Repair (SUPSHIP), or the American Bureau of Shipping when specified in the Ship's specifications for a particular ship. This include6 all applica-ble areas in the shipyard and applicable item furnished to the shipyard by subcontractors.

For Government purchase items: The delegated representative of the Commanding Officer, Naval Ship Systeme Engineering Static!

(NAVSSES), Phil8delphia or of the Officer in C h a r g e , NAVSSES Detachment, MeChaniCObUrg, or of the Officer i n Charge, NAVSSIS Detachment, Norfolk.

When delegated by NAVSE& the repre8entative of the Defense Con-tract ndminimxation Service8 Management Area (DCASMA) .

Technical representative specifically authorized by NAVSEA.

3.1.7 psential elcment~. Essential elements are those elements, either material or process, that are important in establishing a welding or brazing procedure. These elements shall be defined ae part of a welding or brazing procedure. Changes in theme elements, after a procedure h a m been qwlified, 8hall require a change in the written procedure and may require level I or level II requalification, depending on the element being changed and the magnitude of the change.

Government agency employee or American Bureau of Shipping Surveyor qualified as required by this document to accept or reject materials or workmanship on the basis of specified teat resulte.

by which welders and welding operators are evaluated by nondestructive and destructive methods for their demonstrated ability to produce welds which meet

3.1.8 Jnsoectoz. A n inspector is any contractor, Naval shipyard and other

3.1.9 Performance aualification. A performance gualiflCatlOn i8 an action

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NAVSEA S9074-AQ-GIB-010 / 2 4 8 902280b 0000260 997 D the requirements of this specification. Also included are requirements for qualification record keeping.

3.1.10 procedure. A procedure is a written fabrication instruction which contains all the applicable essential elements listed in this document.

3.1.11 Procedure crualification. Procedure qualification is an action by which test assemblies are prepared in accordance with a proposed procedure and evaluated by destructive or nondestructive tests or both. Al80 included are requirements for qualification record keeping.

3.1.12 Qualified. The term "qualified" means that the item under consider-ation has been approved as required by this document.

3.1.13 Straw (colorl. Straw is a color occurring on titanium welds from slight contamination whose hue ranges from pale yellow through brass.

3.2 Termo related to weldinq.

3.2.1 Build-UD. Build-up is a aurfacing variation in which surfacing metal is deposited to restore base material or weld surface dimensions.

3.2.2 Butterinq. Buttering is a eurfacing variation that deposits surfac-ing metal on one or more surfaces to provide metallurgically compatible weld metal for the subsequent completion of the weld.

3.2.3 Claddinq. Cladding is a surfacing variation that deposits or applies surfacing materials, usually to improve corrosion or heat resistance.

3.2.4 Dissimilar metal welds. Dissimilar metal welds are welds involving two metals which differ sufficiently in metallurgical and physical properties to require special consideration in procedure qualification and inspection (see section 4 for exceptions).

3.2.5 Hardfacinq. Hardfacing refers to a surfacing variation in which surfacing metal is deposited to reduce wear.

3.2.6 Internal tube-to-header welds. These are welds between various types of boiler tubes and their respective headers (or drums), such as economizer headers, superheater headers, and 80 forth. These welds are located on the interior of the header (or drum) . Integrity of the tube-to-header connection is usually provided by a combination of welding and rolling the tube.

3.2.7 Kevholc weldinq. Keyhole welding is a technique in which a concen-trated heat source penetrates completely through a workpiece, fonning a hole at the leading edge of the weld pool. As the heat source progresses, the molten metal fills in behind the hole to form the weld bead.

3.2.8 Orifice uas (Dlasma arc weldinu and cuttinu). Orifice gas is the gas that is directed into the torch to surround the electrode. It becomes ionized in the.arc to form the plasma, and issues from the orifice in the torch nozzle as the plasma jet.

3.2.9 Oscillatioa. Defining characteristics:

(a) -litude. Amplitude iæ the distance normal to the direction of welding between the outermost psitiom which the electrode tip reaches while oscillating.

point in each oscillating swing or traverse.

oscillating head in 1 minute, or other specified time increment.

function only, as in a closure where strength is provided by a separate device.

(b) Dwell. Dwell is the time during which the electrode resta at any

(c) Freauencv. Frequency i6 the number of complete cycles made by the

3-2-10 Seal weld. Seal weld is a weld provided for a fluid containment

3.2.11 Socket weld. socket welds are MIL-STD-22, P-13, -14, -15, -16, -17, -42 and -60 joint design welds in pressure Containing piping.

11 Original

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3.2.12 SDecial welds. Special welds are welds involving:

(a) Base materials not covered in table I of this document.

(b) Filler materials not covered in table 11 of this document.

(c) Material thickness above those specified in table VI of this

(d) Processes which are not specified in table III of this document.

document or

3.2.13 Surfacinq. Surfacing is the application by welding, brazing, or thermal spraying of a layer of material to a surface to obtain desired properties or dimensions, as opposed to making a joint. (See also buildup, buttering, cladding and hardfacing.)

3.2.14 ' & & & & w e l d . Welds between tubing (usually heat transfer tubing) and the respective tube sheet usually occurring in some type of heat exchanger (see also 3.2.6).

3.2.15 Weldinu speed (travel meed). Welding speed is the rate of progres-sion of the welding arc along the weld ax is .

3.2.16 Wire feed anule. Wire feed angle is the angle between the filler metal and the tangent to the pipe or plate surface at the arc.

3.2.17 Wormhole DOrOSitY. Wormhole porosity refers to gas inclusions having an elongated form known as "wormholes* or "pipes" usually oriented almost perpendicular to the weld surface.

3.3 Terms related to brazinq.

3.3.1 Brazentent. Brasernent is an assembly whose component parts are joined by brazing.

3.3.2 Clearance. Clearance is the actual gap at room temperature prior to brazing for capillary flow of filler metal.

3.3.3 Manual torch brazinq. Manual torch brazing i8 torch brazing with the brazer controlling the torch with his hands.

3.3.4 Mechanized torch brazinq. Mechanized torch brazing is toreh brazing with an automatic or mechanical method of controlling the torch while brazing.

3.3.5 peel tesÇ. Peel test is a destructive method of inspection where a lap joint is mechanically rreparated by peeling bee figure 20).

3.3.6 -. Preplaced brazing alloy is any f o k (s L...s, wire, ringe, 8nd so forth) of brazing alloy which is placed in a joint prior to brazing.

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4. WELDING PROCEDURE QUALIFICATION

4.1 '$COD*; This section provides general requirements for the qualifi-cation of welding procedures. Specific qualification requirements for the categories listed below shall be as specified in 4.4.

Groove welds and fillet welds (manual, semi-automatic, automatic and machine welding).

Fillet welds - welding over primer coated surfaces.

Weld surfacing.

Dissimilar metal welds.

Resistance welding.

Stud welding.

Welds made without adding filler material (autogenous welds).

Seal, pipe socket and tube to tube sheet welds.

Special welds.

4.2 General rtauirementq.

4.2.1 ResDonsibility. When this document is Specified by the applicable fabrication document, each activity qualifying procedures under the requirements of this document shall prepare written welding procedures and perform the required tests to qualify these procedures. The activity shall notify the authorized repreocntative a minimum of 40 hourn prior to the conduct of procedure qualification testing and afford him the opportunity to observe the welding of the test assemblies and the performance of the required nondestructive and destructive testing. The 40-hour time limit may be modified upon agreement between the authorized representative and the activity. Such observation shall be at the diecretion of the authorized representative.

4.2.2 Certification of aualification testinq. After testing, the responsi-ble official of the activity shall certify that the tests and the test results meet all requirements of this document and that the welding procedure meets all requirements of this document and the applicable fabrication document. Qualifi-cation tests and data containing deviations from requirements may be submitted for approval if such deviations are specifically identified as deviations, and the technical justification for each deviation is provided.