詳細(xì)介紹
新鋼Q345鋼板·冷板·熱板++++==﹦$東﹦$莞﹦$市﹦$俊﹦$峰﹦$鋼﹦$材﹦$有﹦$限﹦$公﹦$$司﹦$Q345是一種鋼材的材質(zhì)。它是低合金鋼,廣泛應(yīng)用于橋梁、車輛、船舶、建筑、壓力容器、特種設(shè)備等。“Q”意為屈服強(qiáng)度,Q345表示這種鋼材屈服強(qiáng)度為345MPa。
Q345A:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035;
Q345B:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.035,S≤0.035;
Q345C:C≤0.20,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.030,Al≥0.015;
Q345D:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.030,S≤0.025,Al≥0.015;
Q345E:C≤0.18,Mn ≤1.70,Si≤0.50,P≤0.025,S≤0.020,Al≥0.015;
Q345A、B、C、D、E均含Nb≤0.07,V≤0.15,Ti≤0.20,Cr≤0.30,Ni≤0.012,Mo≤0.10。