标准 | 钢级 | 化学成分 | 拉伸性能 | 夏比 | C | Mn | P | S | Si | 其它other | | | | | | max | max | max | max | max | min | max | min | max | D≤168.3mm | D>168.3mm | GB/T3091-2008 | Q215A | ≤0.15 | 0.25<1.20 | 0.045 | 0.050 | 0.35 | - - - - Nb\v\Ti加入见 GB/T1591-94 | 215 | - | 335 | - | 15 | >31 | - | Q215B | ≤0.15 | 0.25-0.55 | 0.045 | 0.045 | 0.35 | 215 | 335 | 15 | >31 | Q235A | ≤0.22 | 0.30-0.65 | 0.045 | 0.050 | 0.35 | 235 | 375 | 15 | >26 | Q235B | ≤0.20 | 0.30≤1.80 | 0.045 | 0.045 | 0.35 | 235 | 375 | 15 | >26 | Q295A | 0.16 | 0.80-1.50 | 0.045 | 0.045 | 0.55 | 295 | 390 | 13 | >23 | Q295B
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