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GB/T 4237 · ASTM A240 · EN 10088-2 · 标准对照

GB/T 4237、ASTM A240 与 EN 10088-2 标准对照(热轧不锈钢板)

三套标准都覆盖热轧不锈钢板,但牌号写法、成分范围与检验规则不同。对照表帮助快速定位对应牌号,但替换前必须核对成分与性能保证值。
热轧不锈钢板采购常遇到 GB/T 4237、ASTM A240 与 EN 10088-2 三套标准,它们的关系可以这样理解:
| 项目 | GB/T 4237 | ASTM A240 | EN 10088-2 | |---|---|---|---| | 范围 | 热轧不锈钢厚板/宽板 | 铬镍不锈钢板带 | 不锈钢板带材(耐蚀钢) | | 牌号写法 | 06Cr19Ni10 等 | 304/304L、316L 等 | 1.4301、1.4404 等 | | 成分 | 国标成分范围 | ASTM 范围(部分元素更宽) | EN 范围(含允许偏差) | | 力学 | 国标保证值 | ASTM 保证值 | EN 保证值 |
常用对应关系(需逐批核对):
• 06Cr19Ni10 ≈ 304 ≈ 1.4301 • 022Cr19Ni10 ≈ 304L ≈ 1.4306/1.4307 • 022Cr17Ni12Mo2 ≈ 316L ≈ 1.4404 • 06Cr17Ni12Mo2Ti ≈ 316Ti ≈ 1.4571 • 022Cr23Ni5Mo3N ≈ 2205 ≈ 1.4462
使用建议:
1) 出口项目在合同中明确采用的标准与牌号写法,避免"按国标生产、按美标验收"的错位; 2) 要求双标质保书时,核对两套标准的成分与力学是否同时满足; 3) 标准对照表只用于快速定位,最终以合同标准与实测数据为准。
Compiled by SteelWe editors and industry experts. For industry exchange only; not trading or investment advice. Cite the source when quoting.
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