Classification | Chinese Standard Grade | Equivalent International Standard Grade |
Carbon Structural Steel | Q235B | ST37 (German DIN standard), S235JR (European EN standard), SS400 (Japanese JIS standard), A283C (American ASTM standard) |
Q345B | S355JR (European EN standard), SM490YB (Japanese JIS standard), A572Gr50 (American ASTM standard) | |
High-Carbon Steel | T8, T10, T12 | W1, W2, O1 (American ASTM/AISI standards) |
Medium-Carbon Steel | 45# | C45, 1045 (American ASTM/AISI standards), S45C (Japanese JIS standard) |
Low-Carbon Steel | 10#, 20# | 1010, 1018, 1020 (American ASTM/AISI standards), S10C, S20C (Japanese JIS standard) |