... Welded Steel Pipe Standard:ASTM GB DIN Material:A53(A,B), A106(A,B,C), A210-C OD:48-2438mm Thickness:2 ... -25mm Submerged Arc Welded Steel PipesStandard: ASTM GB DINMaterial: A53(A,B), A106(B,C),GB 10# 20# Q235, Q345 St37 ... Mechanical Analysis GradeC ≤M ≤P ≤S ≤Cu ≥Ni ≤Cr ≤Mo ≤V ≤A0.25 0.950.050.0450.40 0.40 0 ... Mechanical Analysi GradeC≤ MnP≤S≤Si≥Cr≤Cu≤Mo≤Ni≤V≤A0.25 0.27-0.930.0350.0350.10 0 ...