Chinese-made American standard steel plate grades ASTM A203F Chemical composition of pressure vessel plates&Mechanical properties
ASTM A203F Approaching Steel Plate Grade Lookup Table

Grade Chemical composition Mechanical properties Remark
C Mn Si S P Cr Ni ReH Rm KV₂ 8inch[200mm],% 2inch[50mm],%
ASTM A203 F 0.23 0.88 0.13-0.45 0.025 0.025 - 3.18-3.82 50 [345] 75-100 [515-690] - 20