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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| Q235GJ-E | GB /T 19879-2023
Carbon Steel |
||
| Q460GJ-D | GB /T 19879-2023
Alloy Steel |
||
| Q550GJ-E | GB /T 19879-2023
Alloy Steel |
||
| Q355GJ-B | GB /T 19879-2023
Alloy Steel |
- | |
| Q235GJ-C | GB /T 19879-2023
Carbon Steel |
||
| Q355GJ-C | GB /T 19879-2023
Alloy Steel |
- | |
| Q420GJ-D | GB /T 19879-2023
Alloy Steel |
||
| Q420GJ-E | GB /T 19879-2023
Alloy Steel |
||
| Q235GJ-D | GB /T 19879-2023
Carbon Steel |
||
| Q620GJ-D | GB /T 19879-2023
Alloy Steel |
||
| Q500GJ-C | GB /T 19879-2023
Alloy Steel |
||
| Q235GJ-B | GB /T 19879-2023
Carbon Steel |
||
| Q420GJ-B | GB /T 19879-2023
Alloy Steel |
||
| Q390GJ-E | GB /T 19879-2023
Alloy Steel |
||
| Q550GJ-C | GB /T 19879-2023
Alloy Steel |
||
| Q620GJ-C | GB /T 19879-2023
Alloy Steel |
||
| Q460GJ-B | GB /T 19879-2023
Alloy Steel |