牌号 | 级别U.S | 抗拉强度,ksi(MPa) | 最大厚度,in.(mm) |
SA516/SA516M | 55(380) | 55-75(380-515) | 305 |
60(415) | 60-80(415-550) | 205 | |
65(450) | 65-85(450-585) | 205 | |
70(485) | 70-90(485-620) | 205 |
元素 | 成分,% | |||||
55(380)级 | 60(415)级 | 65(450)级 | 70(485)级 | |||
C①② | 板厚≤½in.(12.5mm) | ≤0.18 | ≤0.21 | ≤0.24 | ≤0.27 | |
板厚>½in.-2in.(12.5mm) | ≤0.20 | ≤0.23 | ≤0.26 | ≤0.28 | ||
板厚>2in.-4in.(50~100mm) | ≤0.22 | ≤0.25 | ≤0.28 | ≤0.30 | ||
板厚>4in.-8in.(100~200mm) | ≤0.24 | ≤0.27 | ≤0.29 | ≤0.31 | ||
板厚>8in.(200mm) | ≤0.26 | ≤0.27 | ≤0.29 | ≤0.31 | ||
Mn② | 板厚不大于½in.(12.5mm) | 熔炼分析③ | 0.60~0.90 | 0.60~0.90 | 0.85~1.20 | 0.85~1.20 |
成品分析③ | 0.55~0.98 | 0.55~0.98 | 0.79~1.30 | 0.79~1.30 | ||
板厚大于½in.(12.5mm) | 熔炼分析 | 0.60~1.20 | 0.60~1.20 | 0.85~1.20 | 0.85~1.20 | |
成品分析 | 0.55~1.30 | 0.79~1.30 | 0.79~1.30 | 0.79~1.30 | ||
P① | ≤0.035 | ≤0.035 | ≤0.035 | ≤0.035 | ||
P① | ≤0.035 | ≤0.035 | ≤0.035 | ≤0.035 | ||
Si | 熔炼分析 | 0.15~0.40 | 0.15~0.40 | 0.15~0.40 | 0.15~0.40 | |
成品分析 | 0.13~0.45 | 0.13~0.45 | 0.13~0.45 | 0.13~0.45 |
项目 | 55(380)级 | 60(415)级 | 65(450)级 | 70(485)级 |
抗拉强度,ksi(MPa) | 55~75 (380~515) | 60~80 (415~550) | 65~85 (450~585) | 70~90 (485~620) |
屈服强度①,ksi(MPa) | ≥30(205) | ≥32(220) | ≥35(240) | ≥33(260) |
伸长率(标距8in或200mm),%② | ≥23 | ≥21 | ≥19 | ≥17 |
伸长率(标距2in或50mm),%② | ≥27 | ≥25 | ≥23 | ≥21 |
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