ICS77.140.80
CCSJ31
中华人民共和国国家标准
GB/T7659—2025
代替GB/T7659—2010
焊接结构用铸钢件
Steelcastingsforweldingstructures
2025?06?30发布2026?01?01实施
国家市场监督管理总局
发布
国家标准化管理委员会
GB/T7659—2025
目次
前言··························································································································Ⅲ
1范围·······················································································································1
2规范性引用文件········································································································1
3术语和定义··············································································································2
4牌号·······················································································································2
5制造·······················································································································2
6技术要求·················································································································2
7试验方法·················································································································4
8检验规则·················································································································5
9标识、质量证明书、包装、运输和贮存··············································································7
附录A（规范性）碳当量的规定·······················································································9
图1单铸试块类型图··········