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GB/T 46058-2025Stainless steel plate, sheet and strip for ship and offshore engineering (English PDF)

船舶及海洋工程用不锈钢钢板和钢带

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

March 1, 2026

Scope

GB/T 46058-2025 is the English-translated version of 船舶及海洋工程用不锈钢钢板和钢带.

GB/T 46058-2025 is the Chinese national standard covering hot-rolled plate and hot- and cold-rolled wide strip in stainless grades for hulls and offshore structures — the grade codes, the melting and heat treatment route, the chemical composition and the tensile, impact and hardness properties, the through-thickness ductility, the intergranular and pitting corrosion tests and the check for harmful phases in duplex grades, the ones that embrittle a weld heat-affected zone, and the inspection and certification. First edition, under the China Iron and Steel Association. In force from 1 March 2026. Issued on 29 August 2025, it has been in force since 1 March 2026.

Document preview — GB/T 46058-2025

National Standard of the People's Republic of China

ICS: 77.140.50
Classification: H 46

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

PrefaceIII
1 Scope1
2 Normative References1
3 Terms and Definitions1
4 Order details2
5 Classification and Code2
6 Manufacturing Process2
7 Technical Requirements2
8 Test Methods13
9 Inspection Rule17
10 Packaging, labeling and quality certificate17
Appendix A (Informative) Heat Treatment Procedures for Stainless Steel18
Appendix B (Informative) Comparison Table of Domestic and International Stainless Steel Grades19
Appendix C (Informative) Low-Temperature Properties of Some Stainless Steel Grades20
Appendix D (Informative) High-Temperature Properties of Some Stainless Steel Grades21
References22

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.

Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.

This document was proposed by the China Iron and Steel Association.

This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).

This document was drafted by: Shanxi Taiyuan Iron & Steel Stainless Steel Co., Ltd., Metallurgical Industry Information and Standardization Research Institute, and Fujian Qingtuo Special Steel Technology Research Institute.

Research Institute Co., Ltd., Baoshan Iron & Steel Co., Ltd., China Classification Society, Hangzhou Qianhang Shipbuilding & Repair Co., Ltd., Shandong Shengyang Metal Technology Co., Ltd.

Limited Liability Company, Beijing University of Science and Technology, China Merchants Jinling Dingheng Shipbuilding (Yangzhou) Co., Ltd.

The main drafters of this document are: Yuan Gang, Mo Jinqiang, Tian Zijian, Jiang Laizhu, Huang Jinhua, Wang Duli, Shen Xufeng, Yue Meijuan, and Zhang Weixu.

Zhao Zhengzhi, Fang Yunhu, Duan Weifang, Wu Qiang, Xiao Xiangyong, Wang Zhiyu, Liu Chunhui, Shen Meiyan, Wang Gongzhu, Niu Linkang, Sun Menghan, Xu Bowen, Li Qian.

Stainless steel plates and strips for shipbuilding and marine engineering

1 Scope

This document specifies the ordering details, classifications, codes, manufacturing processes, and technical requirements for stainless steel plates and strips used in shipbuilding and marine engineering.

Test methods, inspection rules, packaging, marking and quality certificates.

This document applies to hot-rolled thick stainless steel plates, hot-rolled wide steel strips, and cold-rolled wide steel strips and their rolled plates used in shipbuilding and marine engineering (hereinafter referred to as...).

(Abbreviated as steel plate and steel strip).

2 Normative references

GB/T 222

GB/T 223

GB/T 228.1

GB/T 228.2

GB/T 229

GB/T 230.1

GB/T 231.1

GB/T 247

GB/T 2975

GB/T 4334-2020

GB/T 4340.1

GB/T 5313

GB/T 8170

GB/T 11170

GB/T 17505

GB/T 17897

GB/T 20066

GB/T 20123

GB/T 20124

GB/T 20878

GB/T 39077

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 26 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 223 · GB/T 228.2 · GB/T 4334-2020 · GB/T 4340.1 · GB/T 17505 · GB/T 20066 · GB/T 20123 · GB/T 20124

Editions of GB/T 46058

Edition	Title	Revision	Status
GB/T 46058-2025	Stainless steel plate, sheet and strip for ship and offshore engineering	current edition	Current

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