GB713-2014Q345R化学成分：标准年号牌号化学成分，(质量分数)%其他CSiMnCuNiCrMoNbVTiAltPSGB713-2008Q345R≤0.20≤0.551.20～1.60≥0.020≤0.025≤0.0152008GB713-2014Q345R≤0.20≤0.551.20～1.60≤0.30≤0.30≤0.30≤0.08≤0.040≤0.020≤0.030≤0.025≤0.010Cu+Ni+Cr+Mo≤0.70GB713-2014Q345R力学性能：钢板厚度mm抗拉强度Rm屈服强度Re伸长率A%温度冲击功KV2/J弯曲试验180°b=2a>3-16510-640Mpa≥345Mpa210°C，-20°C41KV2/Jd=2a>16-36500-630Mpa≥325Mpa210°C，-20°C41KV2/Jd=3a>36-60490-620Mpa≥315Mpa210°C，-20°C41KV2/Jd=3a>60-100390-510Mpa≥305Mpa200°C，-20°C41KV2/Jd=3a>100-150480-610Mpa≥285Mpa200°C，-20°C41KV2/Jd=3a>150-200470～600Mpa≥265Mpa200°C，-20°C41KV2/Jd=3aGB713-2014Q345R与欧标、美标相近材质对照标准GB713-2014EN10028-2:2009A***E（2013）IS08328-2：2011附录A(欧洲）IS08328-2：2011附录B（美、日）钢号Q345RP355GHSA516Gr.70P355GHPT480GHP%≤0.025≤0.025≤0.035≤0.025≤0.025S≤0.010≤0.010≤0.035≤0.010≤0.025KV2/J0°C,≥41-20°C,≥410°C,≥34-20°C,≥27系附加要求0°C,≥34-20°C,≥27双方协商可协商40J可协商40J)