含碳0.206,含锰0.57,含钒98.99,屈服强度355.402,抗拉强度509.733,伸长率19.72%,该Q345B钢板合格吗.
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![含碳0.206,含锰0.57,含钒98.99,屈服强度355.402,抗拉强度509.733,伸长率19.72%,该Q345B钢板合格吗.](/uploads/image/z/2185382-38-2.jpg?t=%E5%90%AB%E7%A2%B30.206%2C%E5%90%AB%E9%94%B00.57%2C%E5%90%AB%E9%92%9298.99%2C%E5%B1%88%E6%9C%8D%E5%BC%BA%E5%BA%A6355.402%2C%E6%8A%97%E6%8B%89%E5%BC%BA%E5%BA%A6509.733%2C%E4%BC%B8%E9%95%BF%E7%8E%8719.72%25%2C%E8%AF%A5Q345B%E9%92%A2%E6%9D%BF%E5%90%88%E6%A0%BC%E5%90%97.)
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含碳0.206,含锰0.57,含钒98.99,屈服强度355.402,抗拉强度509.733,伸长率19.72%,该Q345B钢板合格吗.
含碳0.206,含锰0.57,含钒98.99,屈服强度355.402,抗拉强度509.733,伸长率19.72%,该Q345B钢板合格吗.
含碳0.206,含锰0.57,含钒98.99,屈服强度355.402,抗拉强度509.733,伸长率19.72%,该Q345B钢板合格吗.
Q345化学成分:
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.
Q345的屈服强度下限为345MPa
抗拉强度:490-675
伸长率:≥21
严格的说,不合格