Standard No.:	GB/T 20972.2-2008
English Name:	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
Chinese Name:	石油天然气工业 油气开采中用于含硫化氢环境的材料 第2部分：抗开裂碳钢、低合金钢和铸铁
Chinese Classification:	E10    Petroleum exploration, development, gathering and transportation engineering in general
Professional Classification:	GB    National Standard
ICS Classification:	75.180.01 75.180.01    Equipment for petroleum and natural gas industries in general 75.180.01
Source Content Issued by:	AQSIQ; SAC
Issued on:	2008-8-28
Implemented on:	2009-3-1
Status:	superseded
Superseded by:	GB/T 20972.2-2025 Petroleum and natural gas industries—Materials for use in H2S-containing environments in oil and gas production—Part 2: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
Superseded on:	2025-8-1
Abolished on:	2025-08-01
Target Language:	English
File Format:	PDF
Word Count:	18000 words
Translation Price(USD):	540.0
Delivery:	via email in 1~3 business day

ＧＢ／Ｔ２０９７２的本部分给出了在油气开采及天然气处理厂含硫化氢（Ｈ２Ｓ）环境中，设备用碳钢和低合金钢的选择及评定的要求和推荐做法，这些设备的失效会对公众、个人健康和安全或环境造成危害。使用本部分有助于避免发生这种代价高昂的腐蚀破坏。本部分是对那些合适的设计规范、标准和准则的补充，但不能代替它们对材料的要求。本部分叙述了钢抗由硫化物应力开裂（ＳＳＣ）引起的破坏的性能以及应力定向氢致开裂（ＳＯＨＩＣ）和软区开裂（ＳＺＣ）的有关现象。 本部分还叙述了钢抗氢致开裂（ＨＩＣ）和可能发展成的阶梯裂纹（ＳＷＣ）的性能。 本部分只涉及开裂，不涉及均匀腐蚀（质量减少）或局部腐蚀造成的材料损失。