ASTM-A572-Grade-50对比Q345化学成分、机械性能

CSiMnPSElongation（%）延长率Q345C(China)≤0.20≤0.551.00-1.60≤0.035≤0.035≥22Q345E(China)≤0.18≤0.551.00-1.60≤0.025≤0.025≥22A572Gr50(America)≤0.23≤0.3≤1.35≤0.04≤0.05≥19Note:A572Gr50canbeusedinsteadofQ345CorQ345E.ChemicalConstituent(化学成分)MechanicalProperties（机械性能）ProofStress(Mpa)屈服强度TensileStrength(Mpa)抗拉强度≥325470-630≥325470-630≥345≥448Note:A572Gr50canbeusedinsteadofQ345CorQ345E.MechanicalProperties（机械性能）