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GB/T 44764-2024: Petroleum, petrochemical and natural gas industries - Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments
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GB/T 44764-2024: Petroleum, petrochemical and natural gas industries - Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments

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ICS 75.180.10 CCSE92 National Standard of the People's Republic of China Corrosive oil refining in the petroleum, petrochemical and natural gas industries Metal materials resistant to sulfide stress cracking in manufacturing environments (ISO 17945.2015, IDT) Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Symbols and abbreviations 3 5 Responsibility 3 5.1 End User Responsibilities 3 5.2 Manufacturer's Responsibilities 4 6 Factors that promote SSC 4 6.1 General parameters affecting SSC 4 6.2 Effect of material state and stress level on SSC sensitivity 4 6.3 Effect of Hydrogen Permeation Flux on SSC 4 6.4 Effects of high temperature exposure on SSC 5 6.5 Factors affecting SSC failure time 5 6.6 Basis for determining whether equipment is covered by this document 5 7 Materials included in this document 5 8 Hardness requirement 6 9 Procedures for adding new materials or processes 6 9.1 General Voting Requirements 6 9.2 Field Experience Data Requirements 7 9.3 Laboratory test data requirements 7 10 New restrictions and discontinued materials 7 11 Specification of alloys, conditions and/or processes not listed in this list for specific applications 7 12 Standards Roadmap 8 13 Iron-based materials 9 13.1 Carbon steel and alloy steel 9 13.2 Cast iron and ductile iron 11 13.3 Ferritic stainless steel 11 13.4 Martensitic stainless steel 11 13.5 Austenitic stainless steel 12 13.6 Specific austenitic stainless steels 13 13.7 High alloy austenitic stainless steel 13 13.8 Duplex stainless steel 13 13.9 Precipitation Hardening Stainless Steel 14 14 Non-ferrous materials 15 14.1 Nickel alloy 15 14.2 Cobalt-nickel-chromium-molybdenum alloy 17 14.3 Cobalt-nickel-chromium-tungsten alloy 17 14.4 Titanium Alloy 17 14.5 Aluminum Alloy 18 14.6 Copper Alloy 18 15 Manufacturing Requirements 18 15.1 General manufacturing requirements 18 15.2 Corrosion-resistant cladding, surface hardening cladding and metallurgically bonded coatings 18 15.3 Welding 18 15.4 Metallurgically bonded coatings on carbon steel, alloy steel, and martensitic stainless steel 18 15.5 Printing of logos 19 15.6 Threading 19 15.7 Cold Deformation Process 19 16 Bolt connection 19 16.1 General bolt connection requirements 19 16.2 Exposed bolted connections 19 16.3 Non-exposed bolted connections 20 17 Electroplating, spraying and diffusion processes 20 18 Special Parts 20 18.1 General requirements for special components 20 18.2 Bearings 20 18.3 Spring 21 18.4 Instruments and Controls 21 18.5 Sealing rings and gaskets 21 18.6 Buckle 21 18.7 Special Process Parts 21 19 valve 22 20 Compressors and pumps 22 Appendix A (Informative) Sulfide Type Distribution Map 23 Appendix B (Informative) Background information and requirements for hardness testing 24 Appendix C (Normative) Welding Procedure Assessment Hardness Test Point Selection Requirements 27 Reference 34 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is equivalent to ISO 17945.2015 “Petroleum, petrochemical and natural gas industries - Resistance to sulphide compounds in corrosive petroleum refining environments” Stress-cracking metal materials. The following minimal editorial changes have been made to this document. --- Deleted the three abbreviations HI, HIC and SOHIC in Chapter 4, which are not cited in the text; --- The abbreviation of the obsolete unit ppmw has been deleted and replaced with the international unit "mg/kg" in the text. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed and coordinated by the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools (SAC/TC96). This document was drafted by. China National Petroleum Corporation Engineering Materials Research Institute Co., Ltd., China National Petroleum Corporation Lanzhou Petrochemical Co., Ltd., Inner Mongolia Guqingmeng Graphene Technology Co., Ltd., China National Petroleum Corporation Changqing Petrochemical Branch, China National Petroleum Corporation The company's Dushanzi Petrochemical Branch. The main drafters of this document are. Xu Xiuqing, Ren Shike, Du Xiaoying, Sheng Gang, Cui Kelong, Zhang Jichang, Suo Tao, An Junwei, Xiang Keyou, Li Fagen, Ma Hongjie and Zhao Xuehui. Corrosive oil refining in the petroleum, petrochemical and natural gas industries Metal materials resistant to sulfide stress cracking in manufacturing environments 1 Scope This document specifies requirements for metallic materials resistant to sulfide stress cracking (SSC) in sour petroleum refining and related processing environments. In the environment, H2S is in the gas phase or dissolved in the aqueous phase (liquid water) with or without hydrocarbons. This document does not include design specifications, nor does it include wet H2S cracking, environmental fracture, corrosion and other failure modes. This document is intended for refiners, equipment manufacturers, engineering contractors and construction companies. For contractor use. Specifically, this document is intended to prevent equipment used in the petroleum refining industry (including pressure vessels, heat exchangers, piping, valves, pumps, and compressors) from SSC prevention for carbon steel under P-No.1 category in Section IX of the ASME Boiler and Pressure Vessel Code (BPVC) Requirements are consistent with NACE SP0472. This document applies to all equipment components exposed to sour refinery environments (see Chapter 6) where SSC failure will. a) endanger the integrity of the pressure-containing system; b) interfere with the essential functions of the equipment; and/or c) Prevent the equipment from returning to an operational condition while continuing to be pressurized. 2 Normative references The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. ANSI/NACEMR0175/ISO 15156 Materials for use in H2S-containing environments in oil and gas production in the petroleum and natural gas industries (Pe- production) Note 1.GB/T 20972.1-2007 Petroleum and natural gas industries Materials for use in hydrogen sulfide environments in oil and gas production Part 1.Selection of crack-resistant materials General principles of safety (ISO 15156-1.2001, IDT). Note 2.GB/T 20972.2-2008 Petroleum and natural gas industry Materials for use in hydrogen sulfide environments in oil and gas production Part 2.Cracking-resistant carbon steel, low Alloy steel and cast iron (ISO 15156-2.2003, MOD). Note 3.GB/T 20972.3-2008 Petroleum and natural gas industry Materials for use in hydrogen sulfide environments in oil and gas production Part 3.Cracking and corrosion resistant alloys and other alloys (ISO 15156-3.2003, MOD). Note. GB/T 33362-2016 Conversion of hardness values of metal materials (ISO 18265.2013, IDT) ...