Japanese standard steel plate grades from China SB410 Chemical composition of pressure vessel plates&Mechanical properties
SB410 Approaching Steel Plate Grade Lookup Table

Grade Chemical composition Mechanical properties Remark
C Mn Si S P Ni Al Cr Cu Mo … ReH Rm KV₂ Elongation:
2 inches [50 mm] %
SB410 0.24-0.30 0.9 0.15-0.40 0.03 1.03 - 225 410-550 21