C. NAVSEA S9074-AQ-GIB-010_248.pdf

S9074-AQ-GIB-010/248

REVISION 1

NAVSEA TECHNICAL PUBLICATION

REQUIREMENTS FOR WELDING AND BRAZING

PROCEDURE AND PERFORMANCE QUALIFICATION

Supersedure Notice: This revision supersedes S9074-AQ-GIB-010/248 dated 1 August 1995.

DISTRIBUTION STATEMENT A. APPROVED FOR PUBLIC RELEASE.

PUBLISHED BY DIRECTION OF COMMANDER, NAVAL SEA SYSTEMS COMMAND

12 NOVEMBER 2019

S9074-AQ-GIB-010/248 Rev 1

RECORD OF REVISIONS-1/(RECORD OF REVISIONS-2 Blank)

RECORD OF REVISIONS

REVISION

NO. DATE TITLE OR BRIEF DESCRIPTION/PREPARING ACTIVITY

0 01 AUG 1995 Initial issue.

1 12 NOV 2019 This revision incorporates numerous changes to update the document for reduced lifecycle costs due to lessons learned, increased alignment to industry qualification requirements, problem resolutions, new materials (including more environmentally friendly brazing alloys), and advancements in technology. Of the hundreds of changes made, the more significant ones include:

(1) Addition of:

a. Pre-qualified NAVSEA Standard Welding Procedure

Specifications

b. Robotic welding

c. Aluminum friction stir welding and processing

d. Expanded cross qualification of HY/HSLA steels

e. Navy high strength titanium alloy

f. Expanded thickness ranges and increased dilution control for cladding and hardfacing qualification

g. Cadmium-free brazing alloys;

h. 6000 series aluminum alloys

i. Requirements for computer-controlled power supplies

j. Numerous S-1/P-101 and S-8/P-102 similar materials

k. Bi-metal transition area qualification

l. Limits for manual and semi-automatic process bead weaving

(2) Increased periodicity for maintenance of welding and brazing performance qualification from 3 months to 6 months;

(3) Eliminated approval of Level II qualification data;

(4) Reduced qualification testing for automatic/mechanized pipe welding;

(5) Addition of an annual meeting of authorized representatives;

(6) Updating of nonferrous welding performance cross qualification allowances.

FOREWORD-1

FOREWORD

This document contains the requirements for the qualification of welding and brazing procedures, welders, welding operators, brazers, and brazing operators that must be met prior to any production fabrication. It includes manual, semiautomatic, automatic, mechanized, and robotic welding and brazing of ferrous, nonferrous, and dissimilar metals.

The qualification tests required by this document are devised to demonstrate the adequacy of the welding or brazing procedures and to demonstrate the ability of welders, brazers, welding operators, and brazing operators to produce sound welds or brazes.

NAVY DISTANCE SUPPORT (DS) CUSTOMER ASSISTANCE CONTACT INFORMATION

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Navy Distance Support/Navy 311 Web: http://www.navy311.navy.mil/ (unclassified) or https://www.navy311.navy.smil.mil/ (classified). (Provides program information and links to an online Support

Request Form and Support Request Status, Live CHAT with a Call Center Rep, Knowledge Base Searching, etc.)

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TMDER INSTRUCTIONS

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FOREWORD-2

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i

TABLE OF CONTENTS

Chapter/Paragraph Page

Chapter 1 Scope ........................................................................................................................................................... 1-1

1-1 Scope. ............................................................................................................................................................ 1-1

1-1.1 Safety. .................................................................................................................................................. 1-1

1-2 Previously Qualified Procedures and Personnel. ........................................................................................... 1-1

1-2.1 MIL-120XX Procedures. ...................................................................................................................... 1-1

1-2.2 High-Heat Input Procedures for MIL-S-22698. ................................................................................... 1-2

1-3 Requirements and Guidance. ......................................................................................................................... 1-2

1-4 Other NAVSEA Welding Qualification Standards. ...................................................................................... 1-2

1-5 Authorized Representative Annual Meeting.................................................................................................. 1-2

Chapter 2 Referenced Documents ............................................................................................................................... 2-1

2-1 Government Documents. ............................................................................................................................... 2-1

2-1.1 Specifications and Standards. ............................................................................................................... 2-1

2-1.2 Other Government Documents, Drawings, and Publications. .............................................................. 2-4

2-2 Non-Government Publications. ..................................................................................................................... 2-5

2-3 Order of Precedence. ................................................................................................................................... 2-12

Chapter 3 Definitions .................................................................................................................................................. 3-1

3-1 Terms Related to Both Welding and Brazing. ............................................................................................... 3-1

3-1.1 General. ................................................................................................................................................ 3-1

3-1.2 Acceptable. ........................................................................................................................................... 3-1

3-1.3 Activity. ................................................................................................................................................ 3-1

3-1.4 Applicable Fabrication Document. ...................................................................................................... 3-1

3-1.5 Approval (Approved). .......................................................................................................................... 3-1

3-1.6 Authorized Representative. .................................................................................................................. 3-1

3-1.7 Essential Elements. .............................................................................................................................. 3-1

3-1.8 First Article Test. ................................................................................................................................. 3-1

3-1.9 Inside Diameter (ID). ........................................................................................................................... 3-1

3-1.10 Inspector. ............................................................................................................................................ 3-2

3-1.11 Outside Diameter (OD). ..................................................................................................................... 3-2

3-1.12 Performance Qualification. ................................................................................................................ 3-2

3-1.13 Post Weld Heat Treatment (PWHT). ................................................................................................. 3-2

3-1.14 Procedure............................................................................................................................................ 3-2

3-1.15 Procedure Qualification. .................................................................................................................... 3-2

3-1.16 Qualified. ............................................................................................................................................ 3-2

3-1.17 Straw (Color). ..................................................................................................................................... 3-2

3-2 Terms Related to Welding. ............................................................................................................................ 3-2

3-2.1 Build-up. .............................................................................................................................................. 3-2

3-2.2 Buttering. .............................................................................................................................................. 3-2

3-2.3 Cladding. .............................................................................................................................................. 3-2

3-2.4 Dissimilar Metal Welds. ....................................................................................................................... 3-2 ii

Chapter/Paragraph Page

3-2.5 Government Inspector. ........................................................................................................................ 3-2

3-2.6 Hardfacing. .......................................................................................................................................... 3-2

3-2.7 Instantaneous Power or Energy. .......................................................................................................... 3-2

3-2.8 Keyhole Welding. ................................................................................................................................ 3-3

3-2.9 Lock Weld. .......................................................................................................................................... 3-3

3-2.10 Orifice Gas (Plasma Arc Welding and Cutting). ............................................................................... 3-3

3-2.11 Oscillation. ......................................................................................................................................... 3-3

3-2.12 Robotic Welding. ............................................................................................................................... 3-3

3-2.13 Seal Weld. .......................................................................................................................................... 3-3

3-2.14 Socket Weld. ...................................................................................................................................... 3-3

3-2.15 Special Welds. ................................................................................................................................... 3-3

3-2.16 Surfacing. ........................................................................................................................................... 3-3

3-2.17 Standard Welding Procedure Specification for Naval Applications (SWPS-N). .............................. 3-3

3-2.18 Temperature Controlled Area (TCA). ............................................................................................... 3-4

3-2.19 Tube-to-Header Seal Weld. ............................................................................................................... 3-4

3-2.20 Tube-to-Tubesheet Weld. .................................................................................................................. 3-4

3-2.21 Waveform Controlled Welding. ........................................................................................................ 3-4

3-2.22 Weld Deposited Pad. ......................................................................................................................... 3-4

3-2.23 Welding Speed (Travel Speed). ......................................................................................................... 3-4

3-2.24 Wire Feed Angle. ............................................................................................................................... 3-4

3-3 Terms Related to Brazing. ............................................................................................................................. 3-4

3-3.1 Brazement. ........................................................................................................................................... 3-4

3-3.2 Clearance. ............................................................................................................................................ 3-4

3-3.3 Manual Torch Brazing. ........................................................................................................................ 3-4

3-3.4 Mechanized Torch Brazing. ................................................................................................................. 3-4

3-3.5 Peel Test. ............................................................................................................................................. 3-4

3-3.6 Preplaced Brazing Alloy. ..................................................................................................................... 3-4

Chapter 4 Welding Procedure Qualification ............................................................................................................... 4-1

4-1 Scope. ............................................................................................................................................................ 4-1

4-2 General Requirements. .................................................................................................................................. 4-1

4-2.1 Responsibility. ..................................................................................................................................... 4-1

4-2.1.1 SWPS-Ns.................................................................................................................................... 4-1

4-2.1.2 Qualification Welding. ............................................................................................................... 4-1

4-2.2 Certification of Qualification Testing and Other Agency Qualifications. ........................................... 4-2

4-2.2.1 Other Agency Qualifications. ..................................................................................................... 4-2

4-2.2.2 Other Agency Qualification Limitations. ................................................................................... 4-2

4-2.3 Submittal of Welding Procedures and Qualification Test Reports. ..................................................... 4-2

4-2.3.1 Requirements.............................................................................................................................. 4-2

4-2.3.1.1 Welding Procedure Qualification Test Report. ................................................................. 4-2

4-2.3.1.2 Welding Procedure. .......................................................................................................... 4-2

4-2.3.2 Lot Testing Information for Unclassed Filler Materials. ........................................................... 4-2

4-2.4 Vendor Qualification. .......................................................................................................................... 4-2 iii

Chapter/Paragraph Page

4-2.4.1 Approval Letters of Subcontractors. ........................................................................................... 4-2

4-2.5 Approval of Procedure Qualification for Special Welds. ..................................................................... 4-3

4-2.6 Waiver of Qualification. ....................................................................................................................... 4-3

4-2.7 Qualification Levels. ............................................................................................................................ 4-3

4-2.7.1 General........................................................................................................................................ 4-3

4-2.7.2 Level I. ........................................................................................................................................ 4-3

4-2.7.3 Level II. ...................................................................................................................................... 4-3

4-2.7.3.1 Level II Qualification Testing. .......................................................................................... 4-4

4-2.7.3.2 Submittals and Qualification Test Report Approval Exemptions. .................................... 4-4

4-2.7.3.2.1 Noncompliance and Reinstatement of Required Approval. ................................................... 4-5

4-2.8 Welding Position Qualification Limits. ............................................................................................... 4-5

4-2.9 Repair of Test Assembly. ..................................................................................................................... 4-5

4-2.10 Transfer of Welding Procedure Qualification. ................................................................................... 4-5

4-2.10.1 Procedure Transfer Within an Activity. .................................................................................... 4-5

4-2.10.2 Naval Shipyard Procedure Transfer. ......................................................................................... 4-5

4-2.10.3 Technical Manual Welding Procedure Usage. ......................................................................... 4-5

4-3 Written Welding Procedure. .......................................................................................................................... 4-6

4-3.1 Essential Elements of a Welding Procedure. ....................................................................................... 4-6

4-3.1.1 Identification of S-23 Welding Procedure Applicability. ........................................................... 4-6

4-3.2 Welding Procedure Intent..................................................................................................................... 4-6

4-4 Specific Qualification Requirements. ............................................................................................................ 4-6

4-4.1 Groove Welds and Fillet Welds (for Temperature Control Areas, Also See 4.4.10). .......................... 4-6

4-4.1.1 Base Material. ............................................................................................................................. 4-6

4-4.1.2 Test Assembly Size. ................................................................................................................... 4-6

4-4.1.3 Test Assembly Joint Design. ...................................................................................................... 4-6

4-4.1.3.1 Dissimilar Metal Welds. .................................................................................................... 4-6

4-4.1.3.1.1 Dissimilar Metal Joints Involving Metallic Backing (Permanent or Temporary). ................. 4-7

4-4.1.4 Test Assembly for Qualification of Root Deposition. ................................................................ 4-7

4-4.1.5 Material Thickness Qualification Limits. ................................................................................... 4-7

4-4.1.6 PWHT. ........................................................................................................................................ 4-7

4-4.1.7 Joint Design Qualification Limits. .............................................................................................. 4-7

4-4.1.7.1 Single Pass Welding. ......................................................................................................... 4-7

4-4.1.8 Evaluation of Procedure Qualification Test Results. .................................................................. 4-7

4-4.1.9 Use of Qualified Groove Butt Weld Procedures for Repair, Buttering, and Build-Up. ............. 4-7

4-4.1.10 Qualification Requirements for Automatic, Mechanized, and Robotic Welding. .................... 4-7

4-4.1.10.1 Pipe. ................................................................................................................................. 4-7

4-4.1.10.1.1 Flat Position Longitudinal Welds in Pipe 2-7/8 Inches OD and Greater, and Flat Position

Girth Welds in Pipe Over 24 Inches OD. .................................................................................................. 4-8

4-4.1.10.2 Plate. ................................................................................................................................ 4-8

4-4.1.10.3 Robotic Welding. ............................................................................................................ 4-8

4-4.1.10.3.1 Automatic Robotic Welding. ............................................................................................... 4-8

4-4.1.10.4 Special Automatic, Mechanized, and Robotic Welds. .................................................... 4-9 iv

Chapter/Paragraph Page

4-4.1.11 Fillet Welds – Welding on Bare Surfaces. ............................................................................... 4-9

4-4.1.12 Fillet Welds – Welding Over Primer-Coated Surfaces. ........................................................... 4-9

4-4.1.13 Heat Input. ................................................................................................................................ 4-9

4-4.1.13.1 Test Assembly Welding. ................................................................................................. 4-9

4-4.1.13.2 Heat Input Calculation. ................................................................................................. 4-10

4-4.1.14 Bead Width for Manual and Semi-Automatic Welding Where Toughness is Required. ....... 4-10

4-4.1.15 Multiple Processes. ................................................................................................................ 4-10

4-4.2 Qualification Requirements for Weld Surfacing. .............................................................................. 4-11

4-4.2.1 Weld Cladding for Corrosion Resistance. ................................................................................ 4-11

4-4.2.2 Hardfacing for Wear Resistance. ............................................................................................. 4-11

4-4.3 Resistance Welding. .......................................................................................................................... 4-11

4-4.4 Stud Welding. .................................................................................................................................... 4-11

4-4.4.1 Method of Qualification. .......................................................................................................... 4-12

4-4.4.2 Procedure Requirements. ......................................................................................................... 4-13

4-4.4.3 Internally Threaded Studs. ....................................................................................................... 4-13

4-4.5 Welds Made Without Adding Filler Metal. ....................................................................................... 4-13

4-4.6 Seal Welds, Pipe Socket Welds and Tube-to-Tubesheet Welds (Except for Tube-to-Header Seal

Welds; See 4-4.8). ........................................................................................................................................ 4-13

4-4.6.1 Socket Joints............................................................................................................................. 4-13

4-4.6.1.1 Test Assembly. ............................................................................................................... 4-14

4-4.6.1.1.1 Inspection and Testing. ........................................................................................................ 4-14

4-4.6.2 Seal Welds. ............................................................................................................................... 4-14

4-4.6.2.1 Seal Welds Other Than Fillet and Edge Seal Welds. ..................................................... 4-14

4-4.6.2.2 Fillet Seal Welds in Pipe................................................................................................. 4-14

4-4.6.2.3 Fillet Seal Welds in Other Than Pipe, and Edge Seal Welds. ........................................ 4-14

4-4.6.3 Tube-to-Tubesheet Welds. ....................................................................................................... 4-14

4-4.7 Special Welds. ................................................................................................................................... 4-14

4-4.8 Tube-to-Header Seal Welds in Boiler Components. ......................................................................... 4-14

4-4.8.1 Requirements............................................................................................................................ 4-15

4-4.9 Lock Welds. ....................................................................................................................................... 4-15

4-4.10 Temperature Controlled Areas (TCA). ............................................................................................ 4-16

4-5 Evaluation of Procedure Qualification Weldments. .................................................................................... 4-16

4-5.1 Non-Destructive Tests. ...................................................................................................................... 4-16

4-5.1.1 Visual Inspection (VT). ............................................................................................................ 4-16

4-5.1.1.1 VT and Titanium Weld Appearance. .............................................................................. 4-16

4-5.1.2 Radiographic (RT), Magnetic-Particle (MT), Liquid-Penetrant (PT), and Ultrasonic (UT)

Inspection. ............................................................................................................................................. 4-17

4-5.1.3 Acceptance Standards. ............................................................................................................. 4-17

4-5.2 Destructive Tests. .............................................................................................................................. 4-17

4-5.2.1 Transverse Weld Tension Tests. .............................................................................................. 4-17

4-5.2.2 All-Weld Metal Tension Tests. ................................................................................................ 4-17

4-5.2.2.1 Titanium Specimens. ...................................................................................................... 4-17 v

Chapter/Paragraph Page

4-5.2.3 Guided Bend Tests. ................................................................................................................... 4-17

4-5.2.3.1 Criteria for Acceptance. .................................................................................................. 4-17

4-5.2.4 Impact Test. .............................................................................................................................. 4-18

4-5.2.4.1 Titanium Weld Metal Toughness Tests. ......................................................................... 4-18

4-5.2.4.2 HAZ Toughness Criteria Where Base Material Criteria are Absent. .............................. 4-18

4-5.2.4.3 HSLA-65 HAZ Toughness. ............................................................................................ 4-18

4-5.2.5 Hardness Test. .......................................................................................................................... 4-18

4-5.2.6 Macro-Etch Specimens. ............................................................................................................ 4-18

4-5.3 Special Tests....................................................................................................................................... 4-18

4-5.4 First Article Test Evaluation for Automatic Robotic Welding. ......................................................... 4-19

4-6 Data Accumulation and Reporting for Procedure Qualification.................................................................. 4-19

4-6.1 Test Report. ........................................................................................................................................ 4-19

4-6.1.1 Cladding, Hardfacing, and A-45 Filler Materials. .................................................................... 4-20

4-6.1.2 Automatic Robotic Welding First Article Test Report. ............................................................ 4-20

4-6.1.3 Accompanying Documentation. ............................................................................................... 4-20

4-6.1.4 Level II Qualification Submittals Where Approval is Not Required. ...................................... 4-20

4-6.2 Maintenance of Records. .................................................................................................................... 4-21

4-7 Changes Requiring Level I Requalification of Procedure. .......................................................................... 4-21

4-7.1 Base Material. .................................................................................................................................... 4-21

4-7.2 Filler Material..................................................................................................................................... 4-22

4-7.3 Joint Design. ....................................................................................................................................... 4-23

4-7.3.1 Full Penetration Joints Welded from One Side Only. .............................................................. 4-23

4-7.3.2 Tube-to-Header Seal Weld Joints for Boiler Components. ...................................................... 4-23

4-7.3.3 Butt and Fillet Joints in Robotic Welding. ............................................................................... 4-23

4-7.4 Process. .............................................................................................................................................. 4-23

4-7.5 Electrical Characteristics. ................................................................................................................... 4-24

4-7.6 Position and Vertical Progression. ..................................................................................................... 4-25

4-7.7 Shielding Gas (Torch, Purge Gas, and Powder Feed Gas). ................................................................ 4-25

4-7.8 Heat Treatment. .................................................................................................................................. 4-26

4-7.9 Additional Procedure Changes Requiring Level I Requalification for Cladding and Hardfacing. .... 4-27

4-7.9.1 Changes for All Processes. ....................................................................................................... 4-27

4-7.9.2 Shielded Metal Arc Welding. ................................................................................................... 4-28

4-7.9.3 For Processes Other Than Shielded Metal Arc Welding. ......................................................... 4-28

4-7.10 Repair Welds of S-10H Base Materials. .......................................................................................... 4-28

4-7.11 Welds Requiring Temperature Control (see 4-4.10). ....................................................................... 4-28

4-8 Procedure Changes Requiring Level II Requalification. ............................................................................. 4-29

Chapter 5 Welding Performance Qualification ........................................................................................................... 5-1

5-1 Scope. ............................................................................................................................................................ 5-1

5-2 General Requirements. .................................................................................................................................. 5-1

5-2.1 Responsibility. ...................................................................................................................................... 5-1

5-2.1.1 Waiver of Qualification Tests. .................................................................................................... 5-1

5-2.2 Prerequisite. .......................................................................................................................................... 5-1 vi

Chapter/Paragraph Page

5-2.3 Method of Establishing Qualification. ................................................................................................. 5-1

5-2.3.1 Welding Personnel Training in Workmanship and Visual Acceptance Criteria. ....................... 5-2

5-2.3.2 Robotic Welding Operator Requirements. ................................................................................. 5-2

5-2.4 Alternative Qualification Methods. ..................................................................................................... 5-2

5-2.5 Qualification Limits by Base Material, Filler Material, and Process. ................................................. 5-3

5-2.6 Qualification Limits By Position and Joint Type. ............................................................................... 5-3

5-2.7 Requirements for Special Welds. ........................................................................................................ 5-3

5-2.8 Repair to Test Assemblies. .................................................................................................................. 5-3

5-2.9 Retests. ................................................................................................................................................. 5-3

5-2.10 Transfer of Qualification. .................................................................................................................. 5-3

5-2.11 Maintenance of Qualification. ........................................................................................................... 5-3

5-2.11.1 Renewal of Qualification. ........................................................................................................ 5-4

5-2.11.1.1 Welding Workmanship and Visual Inspection Criteria Re-Examination. ...................... 5-4

5-2.12 Vision Test Requirements. ................................................................................................................. 5-4

5-2.13 Loss of Qualification. ........................................................................................................................ 5-4

5-3 Performance Qualification Test Requirements. ............................................................................................ 5-4

5-3.1 Manual, Semi-Automatic, Automatic, Mechanized, and Robotic Welding. ....................................... 5-4

5-3.1.1 Base Material Form, Size, and Thickness. ................................................................................. 5-4

5-3.1.2 Requirements for Repair Welding of Castings........................................................................... 5-4

5-3.1.3 Automatic, Mechanized, and Robotic Welding. ........................................................................ 5-4

5-3.2 Fuel Gas Welding. ............................................................................................................................... 5-5

5-3.2.1 Base Material Form, Size, and Thickness. ................................................................................. 5-5

5-3.3 Tack and Fillet Welding (Excluding Socket Joints; see table 7-10, Footnote 12). .............................. 5-5

5-3.3.1 Base Material Form and Size. .................................................................................................... 5-5

5-3.3.2 Extent of Qualification. .............................................................................................................. 5-5

5-3.4 Weld Surfacing (Build-up, Buttering, Hardfacing, and Cladding). ..................................................... 5-5

5-3.4.1 Cladding for Applications Where Composition Testing is Not Required, and Buttering. ......... 5-5

5-3.5 Seal, Socket, and Tube-To-Tubesheet Welds. ..................................................................................... 5-5

5-3.5.1 Thin Socket Welds, Tube-to-Tubesheet Welds, and Seal Welds Other Than Edge or Thicker

Fillet Welds. ............................................................................................................................................ 5-5

5-3.5.2 Thicker Socket Welds and Other Seal Welds. ........................................................................... 5-5

5-3.6 Tube-To-Header Seal Welding of Boiler Components. ...................................................................... 5-6

5-3.6.1 Space Restrictions. ..................................................................................................................... 5-6

5-3.6.2 Nondestructive Testing. ............................................................................................................. 5-6

5-3.6.3 Macro Testing. ........................................................................................................................... 5-6

5-3.6.4 Positions. .................................................................................................................................... 5-6

5-3.6.5 Repairs. ...................................................................................................................................... 5-6

5-3.7 Lock Welds. ......................................................................................................................................... 5-6

5-4 Test and Evaluation of Qualification Test Assemblies. ................................................................................ 5-6

5-4.1 Nondestructive Inspection. .................................................................................................................. 5-6

5-4.1.1 Visual Examination. ................................................................................................................... 5-6

5-4.1.2 Nondestructive Test Performance. ............................................................................................. 5-6 vii

Chapter/Paragraph Page

5-4.1.3 Acceptance Standards. ................................................................................................................ 5-6

5-4.2 Destructive Tests. ................................................................................................................................. 5-6

5-4.2.1 Guided-Bend Tests. .................................................................................................................... 5-6

5-4.2.2 Break Test. .................................................................................................................................. 5-6

5-4.2.3 Macro-Etch Specimen. ............................................................................................................... 5-7

5-5 Data Accumulation and Records. .................................................................................................................. 5-7

5-5.1 Records. ................................................................................................................................................ 5-7

5-5.1.1 Workmanship and Visual Inspection Criteria Examination. ...................................................... 5-7

5-5.2 Disposable Data. .................................................................................................................................. 5-7

5-5.3 Qualification Currency Record. ........................................................................................................... 5-7

5-5.4 Vision Test Records. ............................................................................................................................ 5-7

5-6 Changes Requiring Requalification of Welder or Welding Operator. ........................................................... 5-7

5-6.1 Base Material. ...................................................................................................................................... 5-7

5-6.2 Filler Material....................................................................................................................................... 5-8

5-6.3 Process. ................................................................................................................................................ 5-8

5-6.4 Position and Progression. ..................................................................................................................... 5-9

5-6.5 Joint Design. ......................................................................................................................................... 5-9

5-6.6 Accessibility. ........................................................................................................................................ 5-9

5-6.7 Shielding Gas. ...................................................................................................................................... 5-9

5-6.8 Cladding With and Without Composition Testing. ............................................................................ 5-10

5-6.9 Fabrication Document Requirements. ................................................................................................ 5-10

Chapter 6 Brazing ........................................................................................................................................................ 6-1

6-1 Scope. ............................................................................................................................................................ 6-1

6-2 General Requirements. .................................................................................................................................. 6-1

6-2.1 Fabrication Requirements. ................................................................................................................... 6-1

6-3 Brazing Procedure Qualification. .................................................................................................................. 6-1

6-3.1 Responsibility. ...................................................................................................................................... 6-1

6-3.1.1 Qualification Brazing. ................................................................................................................ 6-2

6-3.2 Certification of Qualification Testing. ................................................................................................. 6-2

6-3.3 Approval of Qualification Test Data and Procedure Submission. ....................................................... 6-2

6-3.3.1 Requirements. ............................................................................................................................. 6-2

6-3.4 Test Report. .......................................................................................................................................... 6-2

6-3.5 Maintenance of Records. ...................................................................................................................... 6-3

6-3.6 Vendor Qualification. ........................................................................................................................... 6-3

6-3.7 Transfer of Brazing Procedure Qualification. ...................................................................................... 6-3

6-3.7.1 Procedure Transfer Within an Activity. ...................................................................................... 6-3

6-3.7.2 Naval Shipyard Procedure Transfer. ........................................................................................... 6-3

6-3.7.3 Technical Manual Welding Procedure Usage. ........................................................................... 6-3

6-3.8 Written Brazing Procedure Content. .................................................................................................... 6-3

6-3.8.1 Essential Elements. ..................................................................................................................... 6-3

6-3.9 Procedure Qualification Test Requirements......................................................................................... 6-4

6-3.9.1 Qualification Test Assemblies. ................................................................................................... 6-4 viii

Chapter/Paragraph Page

6-3.9.2 Qualification Assembly Destructive Test Evaluation. ............................................................... 6-4

6-3.9.2.1 Tension Test. .................................................................................................................... 6-4

6-3.9.2.2 Peel Test. .......................................................................................................................... 6-4

6-3.9.3 Qualification Assembly Nondestructive Test Inspection. .......................................................... 6-4

6-3.10 Changes Requiring Requalification of Brazing Procedures. ............................................................. 6-4

6-3.10.1 Base Material. .......................................................................................................................... 6-5

6-3.10.2 Brazing Alloy. .......................................................................................................................... 6-5

6-3.10.3 Brazing Process. ....................................................................................................................... 6-5

6-3.10.4 Flux. ......................................................................................................................................... 6-5

6-3.10.5 Furnace Atmosphere. ............................................................................................................... 6-5

6-3.10.6 Induction Brazing. ..........................................................................