GB/T 20972.2-2025 Active National standards

GB/T 20972.2-2025 Petroleum and natural gas industries—Materials for use in H2S-containing environments in oil and gas production—Part 2:Cracking-resistant carbon and low alloy steels,and the use of cast irons

Publish Date: 2025-01-24 Implement Date: 2025-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20972.2-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Oil exploration, development, and transportation

ICS Name: Comprehensive equipment for the oil and gas industry

Publish Date: 2025-01-24

Implement Date: 2025-08-01

Pages: 52 pages

Scope

This document specifies the selection, evaluation, and use requirements for carbon steel and low-alloy steel materials in environments containing hydrogen sulfide (H2S) in oil and gas extraction and natural gas processing plants, as well as the use requirements for cast iron.
This document applies to the selection, evaluation, and use of crack-resistant materials for equipment designed and manufactured according to the load-control design method.
Note: Cracking includes sulfide stress cracking (SSC), stress-oriented hydrogen-induced cracking (SOHIC), soft zone cracking (SZC), hydrogen-induced cracking (HIC), and stepwise cracking (SWC). It does not include material loss caused by uniform corrosion, localized corrosion, or fatigue corrosion.

Development Information

Word Count: 82 Thousand words Pages: 52 pages

Same series standard

GB/T 20972.3-2025 Petroleum and natural gas industries—Materials for use in H2S-containing environments in oil and gas production—Part 3:Cracking-resistant CRAs(corrosion-resistant alloys) and other alloys

Replace the following standards

GB/T 20972.2-2008 Petroleum and natural gas industries—Materials for use in H2S-containing environments in oil and gas production—Part 2:Cracking-resistant carbon and low alloy steels,and the use of cast irons

Referenced Standards

GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 231.1-2002 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2009 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 231.1-2018 Metallic materials—Brinell hardness test—Part 1:Test method GB/T 4157-1984 Sustained load tensile test method of metals for resistance to sulfide stress corrosion cracking GB/T 4157-2006 Laboratory testing of metals for resistance to specific forms of environmental cracking in H2S environments GB/T 4157-2017 Laboratory testing of metals for resistance to sulfide stress crackingand stress corrosion cracking in H2S environment GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 8650-1988 Test method of pipeline steels for resistance to step wise cracking GB/T 8650-2006 Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking GB/T 8650-2015 Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking GB/T 15970.2-2000 Corrosion of metals and alloys—Stress corrosion testing—Part 2:Preparation and use of bent-beam specimens GB/T 20972.1-2007 Petroleum and natural gas industries—Material for use in H2S-containing environments in oil and gas production—Part 1:General principles for selection of cracking resistant materials GB/T 20972.3-2008 Petroleum and natural gas industries—Material for use in H2S-containing environments in oil and gas production—Part 3:Cracking-resistant CRAs(corrosion-resistant alloys)and other alloys GB/T 20972.3-2025 Petroleum and natural gas industries—Materials for use in H2S-containing environments in oil and gas production—Part 3:Cracking-resistant CRAs(corrosion-resistant alloys) and other alloys GB/T 22513-2008 Petroleum and natural gas industries—Drilling and production equipment—Wellhead and christmas tree equipment GB/T 22513-2013 Petroleum and natural gas industries—Drilling and production equipment—Wellhead and christmas tree equipment GB/T 22513-2023 Petroleum and natural gas drilling and production equipment—Wellhead and tree equipment GB/T 33362-2016 Metallic materials—Conversion of hardness values HB/Z 26-2011 Shot peening of aircraft parts

Adopt standards

ISO 15156-2:2020

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