Chinese-made American standard steel plate grades ASTM A387-5 Chemical composition of pressure vessel plates&Mechanical properties
ASTM A387-5 Approaching Steel Plate Grade Lookup Table

Grade Chemical composition Mechanical properties Remark
C Mn Si S P Cr Ni Mo … ReH Rm KV₂ 8inch[200mm]，% 2inch[50mm]，%
ASTM A387-5 ≤0.15 0.25-0.66 ≤0.55 0.025 0.025 3.9-6.1 - 0.4-0.7 205 415-585 - 18
310 515-690 - 18