Welding Services for Equipment Used in the Petroleum and Natural Gas Industry

API STANDARD 20G

FIRST EDITION, JANUARY 2020

Special Notes

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Foreword

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Contents

Page

1. Scope 1

   1. Purpose 1

   2. Applicability 1

2. Normative References 1

3. Terms, Definitions, Acronyms, and Abbreviations 2

   1. Terms and Definitions 2

   2. Abbreviations 3

4. Welding Services Supplier Qualification 3

   1. General 3

   2. Facilities and Equipment 4

   3. Welding Services Supplier Quality Management System (QMS) 4

   4. Technical Review Requirements 4

5. Personnel Training and Competency Requirements 4

6. Weld Processes, Equipment, and Qualification Requirements 5

   1. General 5

   2. Equipment Inventory (Welding, Inspection, Heat Treatment, NDE, Monitoring). 5

   3. Calibration and Verification 5

7. Material Preservation and Control 6

   1. General 6

   2. Welding Consumable Storage and Control 7

   3. Base Material Control 7

   4. Identification and Traceability 8

   5. Preservation of Product 9

8. Qualification of Weld Procedure Specifications and Controls 9

   1. General 9

   2. Control of Weld Procedure Specifications 9

   3. Welder Performance Qualification 10

   4. Welding Inspection Personnel 10

9. Inspection Requirements 11

   1. General 11

   2. In-process Inspection 11

   3. Final Inspection 11

   4. Inspection Records 11

10. Control of Service Suppliers 12

    1. General 12

    2. Service Supplier Qualification Requirements 12

    3. Periodic Evaluation of Sub-suppliers of Welding services and Service Suppliers 13

    4. Review of Order Requirements with Service Suppliers 14

11. Welding Services Supplier Performed Processes 14

12. Records and Document Control 14

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Contents

Page

Annex A (informative) Weld Supplier Audit Process 16

Bibliography 29

Tables

1 Service Supplier Qualification Requirements 13

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Welding Services for Equipment Used in the Petroleum and Natural Gas Industry

1. Scope

   
   

   1. Purpose

      
      

      This standard specifies requirements for the qualification of suppliers of welding services used in the manufacturer

      of equipment for the petroleum and natural gas industries.

      
      

   2. Applicability

      
      

      The requirements of this standard apply to welding operations performed in a welding facility or in the field.

      Included are pressure-containing, pressure-controlling, overlay, and structural welds.

      
      

      NOTE This standard does not limit the responsibility of any manufacturer of commercial products using welding services and manufactured to an API standard from its responsibility for compliance with all applicable requirements of that API standard.

      
      

2. Normative References

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any addenda) applies, except that new editions may be used on issue and become mandatory upon the effective date specified by the publisher or six months from the date of the revision (where no effective date is specified).

API Specification Q1, Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry

API Standard 20D, Nondestructive Examination Services for Equipment Used in the Petroleum and Natural Gas Industry

API Standard 20H, Heat Treatment Services—Batch Type for Equipment used in the Petroleum and Natural Gas Industry

ASME1 Boiler and Pressure Vessel Code Section II—Materials, Part C, Specifications for Welding Rods,

Electrodes and Filler Metals

ASME. BPVC Section IX—Welding, Brazing, and Fusing Qualifications

AWS2 A5.01, Welding Consumables—Procurement of Filler Metals and Fluxes

AWS D1.1, Structural Welding Code—Steel

AWS QC1, Specification for AWS Certification of Welding Inspectors

ISO3 9001, Quality management systems

ISO 9606-1, Qualification testing of welders – Fusion welding – Part 1: Steels

1 American Society of Mechanical Engineers, Two Park Avenue, New York, NY 10016, www.asme.org.

2 American Welding Society, 8669 NW 36th Street, #130, Miami, FL 33166, www.aws.org.

3 International Organization for Standardization, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva, Switzerland, www.iso.org.

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