ISO 11972-2023

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阿拉丁 2024-09-09 8 241.96KB 12 页 16星币

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Corrosion-resistant cast steels for

general applications

Aciers moulés résistant à la corrosion pour applications courantes

INTERNATIONAL

STANDARD

ISO

11972

Third edition

2023-11

Reference number

ISO 11972:2023(E)

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Website: www.iso.org



ISO 11972:2023(E)

Foreword ........................................................................................................................................................................................................................................ iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative reference ........................................................................................................................................................................................ 1

3 Termsanddefinitions .................................................................................................................................................................................... 1

4 General conditions for delivery ........................................................................................................................................................... 1

5 Chemical composition .................................................................................................................................................................................... 1

6 Mechanical properties ................................................................................................................................................................................... 1

7 Heat treatment ....................................................................................................................................................................................................... 1

8 Supplementary requirements ............................................................................................................................................................... 5

Annex A  UNS cast grades similar to ISO cast grades ................................................................................... 6

Bibliography ........................................................................................................................................... ..................................................................................... 7

iii

Contents 

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标签： #ISO

摘要：

ISO 11972-2023 是国际标准化组织（ISO）最新发布的关于一般用途耐热钢及合金铸件的技术规范标准，取代了旧版 ISO 11972:1998。该标准详细规定了在高温环境下使用的铸钢件的化学成分、力学性能、热处理工艺、制造要求及试验方法，涵盖奥氏体不锈钢、铁素体与马氏体耐热钢等典型材料牌号。本版本在内容上进行了多项重要更新，包括优化部分材料的碳含量上限、调整高温持久强度数据、增加对铸件表面缺陷修复的严格限制，并引入更现代化的非破坏性检测参考规范。作为全球耐热钢铸件领域的基准参考文件，IS

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ISO 11972-2023

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