商铺名称:南宫市锐迪焊接材料有限公司
联系人:郑经理(先生)
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企业邮箱:728848999@qq.com
联系地址:河北省南宫市经济技术开发区
邮编:55750
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Q345低合金钢气保焊丝
广泛应用于桥梁、车辆、船舶、建筑、压力容器、特种设备等
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。
抗拉强度:490-675MPa 屈服强度:≥345MPa 伸长率:≥22%