Table applied to the material of general-purpose steel GB/T1591-2008, Q235, Q345, Q420, Q460 used in Export Work.
| China-GB | America-ASTM | Equivalent |
| Q235 | Grade D | SS400,S235JO |
| Q345 | Grade50[345] | S355JR |
| Q420 | Grade60[415] | S420NL |
| Q460 | Grade65[450] | S460NL |
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