元素 | 成分 | ||
C | ≤1in.(25mm) | A级 | ≤0.26 |
B级 | ≤0.28 | ||
>1in.(25mm) | A级 | ≤0.28 | |
B级 | ≤0.30 | ||
Mn | ≤1in.(25mm) | 熔炼分析 | 0.90~1.40 |
成品分析 | 0.83~1.52 | ||
>1in.(25mm) | 熔炼分析 | 0.90~1.50 | |
成品分析 | 0.84~1.62 | ||
P | ≤0.035 | ||
S | ≤0.035 | ||
Si | 熔炼分析 | 0.15~0.40 | |
成品分析 | 0.13~0.45 |
项目 | A级 | B级 | |
抗拉强度,ksi(MPa) | 75~95(515~655) | 80~100(550~690) | |
屈服强度,ksi(MPa) | ≤1in.(25mm) | ≥42(290) | ≥47(325) |
>1in.(25mm) | ≥40(275) | ≥45(310) | |
伸长率,标距8in.或200mm,% | ≥16 | ≥16 | |
伸长率,标距2in.或50mm,% | ≥19 | ≥19 |
欢迎光临 钢铁圈子-有钢铁的地方,就有钢铁圈子! (https://ironbbs.com/) | Powered by Discuz! X3.5 |