S9074-AQ-GIB-010/248 Rev 1
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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
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