GB/T 20972.3-2008
Petroleum and natural gas industries.Material for use in HS-containing environments in oil and gas production.Part 3:Cracking-resistant CRAs(corrosion-resistant alloys)and other alloys (English Version)

Standard No.

GB/T 20972.3-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 20972.3-2008

Scope

Note: Corrosion-resistant alloys and other alloys selected in accordance with this standard are resistant to cracking in the hydrogen sulfide-containing environment specified in oil and gas production, but not necessarily prevent cracking in all service environments. The selection of appropriate corrosion-resistant alloys and other alloys for the intended service environment is the responsibility of the equipment user. This part of GB/T 20972 gives the requirements and recommended practices for the selection and evaluation of corrosion-resistant alloys (CRA) and other alloys for equipment in the environment containing hydrogen sulfide (HS) in oil and gas extraction and natural gas processing plants. Failure could result in a hazard to the public, personal health and safety, or the environment. Use of this section will help avoid this costly corrosion damage to your equipment. This standard is a supplement to those appropriate design codes, standards and guidelines, but does not replace their requirements for materials. This section describes the resistance of these materials to damage caused by sulfide stress cracking (SSC), stress corrosion cracking (SCC) and galvanic-induced hydrogen stress cracking (GHSC). This standard deals only with cracking and not with loss of material due to general corrosion (loss of mass) or localized corrosion. This standard applies to the selection and evaluation of materials used in the design and manufacture of equipment according to conventional elasticity criteria. For the design using plasticity criteria (such as design based on strain and limit state), according to the requirements of Chapter 5 of GB/T 20972.1-2007. This section does not necessarily apply to refinery or downstream processing equipment.

GB/T 20972.3-2008 Referenced Document

• ASTM A276 Standard Specification for Stainless Steel Bars and Shapes
• GB/T 15970.7-2000 Corrosion of metals and alloys-Stress corrosion testing-Part 7:Slow strain rate testing
• GB/T 19830-2005 Petroleum and natural gas industries.Steel pipes for use as casing or tubing for wells
• GB/T 20972.1-2007 Petroleum and natural gas industries- Material for use in HS-containing environments in oil and gas production- Part 1: General principles for selection of cracking-resistant materials
• GB/T 20972.2-2008 Petroleum and natural gas industries.Materials for use in HS-containing environments in oil and gas production.Part 2:Cracking-resistant carbon and low alloy steels,and the use of cast irons
• GB/T 228 Metallic materials--Tensile testing at ambient temperature
• GB/T 230.1 Metallic materials.Rockwell hardness test.Part 1:Test method*， 2018-05-14 Update
• GB/T 4157-2006 Laboratory testing of metals for resistance to specific forms of environmental cracking in HS environments
• GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method*， 2009-06-25 Update
• ISO 10423 Petroleum and natural gas industries — Drilling and production equipment — Wellhead and tree equipment*， 2022-03-08 Update

GB/T 20972.3-2008 history

• 2008 GB/T 20972.3-2008 Petroleum and natural gas industries.Material for use in HS-containing environments in oil and gas production.Part 3:Cracking-resistant CRAs(corrosion-resistant alloys)and other alloys

GB/T 20972.3-2008 -All Parts