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GB/T 27866-2023: Specification of controlling weld hardness of steel pipe and equipment to prevent sulfide stress cracking
Status: Valid GB/T 27866: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 27866-2023 | English | 289 |
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Specification of controlling weld hardness of steel pipe and equipment to prevent sulfide stress cracking
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GB/T 27866-2023
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| GB/T 27866-2011 | English | 559 |
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Specification of controlling weld hardness of carbon steel and low alloy steel piping and equipment to prevent sulfide stress cracking
| Obsolete |
GB/T 27866-2011
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PDF similar to GB/T 27866-2023
Basic data | Standard ID | GB/T 27866-2023 (GB/T27866-2023) | | Description (Translated English) | Specification of controlling weld hardness of steel pipe and equipment to prevent sulfide stress cracking | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E98 | | Classification of International Standard | 75.200 | | Word Count Estimation | 14,152 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-03-01 | | Older Standard (superseded by this standard) | GB/T 27866-2011 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 27866-2023: Specification of controlling weld hardness of steel pipe and equipment to prevent sulfide stress cracking
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 75:200
CCSE98
National Standards of People's Republic of China
Replace GB/T 27866-2011
Steel pipes and equipment protected from weld sulfides
Technical specifications for hardness control of stress cracking
Published on 2023-11-27
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Basic regulations 2
5 Weld hardness control 2
5:1 General provisions 2
5:2 Control of chemical composition of base metal 3
5:3 Welding material selection 3
5:4 Welding process parameter control 3
5:5 Post-weld heat treatment 3
5:6 Weld hardness control under special circumstances 3
6 Testing and result evaluation of weld hardness 4
6:1 Hardness testing method 4
6:2 On-site hardness testing and result evaluation 4
6:3 Laboratory hardness testing and result evaluation 4
7 Weld repair and hardness testing and assessment 7
Appendix A (Normative) Work content and flow chart for controlling weld hardness to prevent sulfide stress cracking 8
Reference 9
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 27866-2011 "Technical regulations for controlling the hardness of welds of steel pipes and equipment to prevent sulfide stress cracking"
Standard", compared with GB/T 27866-2011, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) The scope of application has been changed: This document is applicable to carbon steel and low alloy steel pipes and pipes with a specified minimum tensile strength not greater than 490MPa:
Equipment manufacturing welds and construction welds (see Chapter 1, Chapter 1, 4:5 of the:2011 edition);
b) Added assessment requirements where hardness testing cannot be performed (see 4:3);
c) The base metal, welding materials, welding process parameter control and post-weld heat treatment technical requirements have been changed, and the welding material standards have been deleted (see section
Chapter 5, 5:3, 5:4 and 5:5 of the:2011 edition);
d) Changed the Leeb hardness and Brinell hardness testing requirements (see 6:2:2, 6:2:8, 6:2:1 of the:2011 edition);
e) Figure 1 has been changed (see 6:3:3, 6:3:2 of the:2011 version);
f) Changed the weld repair and hardness testing and assessment (see Chapter 7, 6:2:6, 6:2:7 of the:2011 edition);
g) Added work content and flow chart for controlling weld hardness to prevent sulfide stress cracking (see Appendix A):
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed and coordinated by the National Petroleum and Natural Gas Standardization Technical Committee (SAC/TC355):
This document was drafted by: China Petroleum Engineering Construction Co:, Ltd: Southwest Branch, China National Petroleum Corporation Southwest Oil and Gas
Tian Branch, PetroChina Tarim Oilfield Branch, Sichuan Oil and Gas Construction Engineering Co:, Ltd:
The main drafters of this document: Jiang Fang, Hu Yiwu, Chen Yongbin, Wu Libin, Li Tianlei, Feng Qi, Ning Yongqiao, Zou Yingyong, Shi Daiyan, Cao Xiaoyan,
Jiang Liu, Wang Yaxi, Li Yang, Kong Xianghuan, Zhang Yuan, Zhang Jinzhong, Cui Lei, Zhang Renyong, Xian Ning, Yao Zhiguang:
This document was first published in:2011 and this is the first revision:
Steel pipes and equipment protected from weld sulfides
Technical specifications for hardness control of stress cracking
1 Scope
This document describes hardness control methods for preventing sulfide stress cracking (SSC) in welds of piping and equipment exposed to sour environments:
Law, and stipulates the requirements for hardness control:
This document is applicable to the welding and construction of carbon steel and low alloy steel pipelines and equipment with a minimum tensile strength of no more than 490MPa:
welds:
This document does not cover other types of rings that prevent stress-oriented hydrogen-induced cracking (SOHIC) and soft zone cracking (SZC) caused by hydrogen sulfide environments:
The environment cracks:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 150:1 Pressure vessels Part 1: General requirements
GB/T 2654 Hardness test method for welded joints
GB/T 3965 Method for determination of diffusible hydrogen in deposited metal
GB/T 4340:1 Vickers hardness test of metallic materials Part 1: Test methods
GB 50251 Gas pipeline engineering design specifications
SY/T 0599 Technical specifications for metal materials resistant to sulfide stress cracking and stress corrosion cracking for natural gas surface facilities
SY/T 7024 Technical specifications for on-site hardness testing of metal materials in hydrogen sulfide-containing oil and gas fields
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
weld seam
The general term for the three parts of weld metal, fusion line and heat affected zone:
3:2
Acidic environment sourservice
Oil and gas that contains hydrogen sulfide and can cause sulfide stress cracking, stress corrosion cracking, hydrogen-induced cracking and other cracking forms in metal materials
field environment:
[Source:SY/T 0599-2018,2:1:4]
3:3
Cracking of a metal associated with corrosion and tensile stresses [residual and/or applied] in the presence of water and hydrogen sulfide:
[Source: GB/T 20972:1-2007, 3:23, with modifications]
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