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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| SAPH400 | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| SAPH440 | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| SAPH310 | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| SAPH370 | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| SPFH590 | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| SPFH540 | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| QStE420TM | Q/BQB 310-2014
Alloy Steel |
BAOSTEEL | |
| QStE340TM | Q/BQB 310-2014
Alloy Steel |
BAOSTEEL | |
| QStE550TM | Q/BQB 310-2014
Alloy Steel |
BAOSTEEL | |
| QStE460TM | Q/BQB 310-2014
Alloy Steel |
BAOSTEEL | |
| B550CL | Q/BQB 310-2014
Carbon Steel |
- | BAOSTEEL |
| B380CL | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| B750L | Q/BQB 310-2014
Alloy Steel |
- | BAOSTEEL |
| B600CL | Q/BQB 310-2014
Alloy Steel |
- | BAOSTEEL |
| B650L | Q/BQB 310-2014
Alloy Steel |
- | BAOSTEEL |
| B600L | Q/BQB 310-2014
Alloy Steel |
BAOSTEEL | |
| B320L | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL | |
| B440QK | Q/BQB 310-2014
Carbon Steel |
- | BAOSTEEL |
| B700L | Q/BQB 310-2014
Alloy Steel |
- | BAOSTEEL |
| B510DL | Q/BQB 310-2014
Carbon Steel |
BAOSTEEL |