牌号 | 化学元素(质量分数)/% | ||||||||||
C | Si | Mn | Cr | Ni | Mo | Nb | V | P | S | Alt | |
Q345R | ≤0.20 | ≤0.55 | 1.20-1.60 | ≤0.025 | ≤0.015 | ≥0.020 |
钢板公称厚度/mm | 抗拉强度R/(N/㎡) | 屈服强度R/(N/㎡) | 伸长率A/% | 温度/℃ | 冲击吸收能量KV2/J | 180°弯曲试验 弯曲直径(b≥35mm) |
3-16 | 510-640 | ≥345 | ≥21 | 0 | ≥34 | d=2a |
>16-36 | 500-630 | ≥325 | ≥21 | 0 | ≥34 | d=3a |
>36-60 | 490-620 | ≥315 | ≥21 | 0 | ≥34 | d=3a |
>60-100 | 490-620 | ≥305 | ≥20 | 0 | ≥34 | d=3a |
>100-150 | 480-610 | ≥285 | ≥20 | 0 | ≥34 | d=3a |
>150-200 | 470-600 | ≥265 | ≥20 | 0 | ≥34 | d=3a |
材质 | 厚度mm | 宽度m | 长度m | 备注-临氢定 |
Q345R正火二探 | 20 | 2000-3000 | 6000-13000 | 120吨 |
Q345R正火二探 | 30 | 2000-3000 | 6000-12000 | 150吨 |
Q345R正火二探 | 40 | 2000-3000 | 6000-12000 | 140吨 |
Q345R(R-HIC) | 8-150 | 2000-3000 | 6000-12000 | 舞钢定扎 |