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| Material Designation | Standard | Same grade, different standards. | Source factory |
|---|---|---|---|
| 60Si2MnA | Q/BQB 516-2019
Spring Steel |
BAOSTEEL | |
| SUP9 | Q/BQB 516-2019
Alloy Steel |
BAOSTEEL | |
| SAE9254 | Q/BQB 516-2019
Spring Steel |
- | BAOSTEEL |
| 60Si2CrVAT | Q/BQB 516-2019
Spring Steel |
- | BAOSTEEL |
| 60Si2CrA | Q/BQB 516-2019
Spring Steel |
BAOSTEEL | |
| 54SiCr6 | Q/BQB 516-2019
Spring Steel |
BAOSTEEL | |
| B55SiCr-S | Q/BQB 516-2019
Spring Steel |
- | BAOSTEEL |
| BHS2100A | Q/BQB 516-2019
Spring Steel |
- | BAOSTEEL |
| B55SiCrV | Q/BQB 516-2019
Spring Steel |
- | BAOSTEEL |
| 50CrVA | Q/BQB 516-2019
Spring Steel |
BAOSTEEL |