Good Quality Blue Steel Strips
Specification of 75cr1 bule spring steel strip
Thickness: 6-40mm
Width: 40-120mm
Material:75Cr1
Surface: blue,yellow,black,polished,white,bright
Hardness: 200HBS
Detailed Physical properties
| C | 0.2~0.78% |
| Si | 0.25~0.50 |
| Mn | 0.5~0.8% |
| Cr | 0.3~0.4% |
| P | ≤0.035% |
| S | 0.035% |
International Standard Grades
| GB | ASTM | JIS | DIN |
| 65Mn | 1066 | ||
| 55Si2Mn | 9255 | 55Si7 | |
| 60Si2Mn | 9260 | SUP6 | 60Si7 |
| 60Si2MnA | 9260 | SUP6 | 60Si7 |
| 55CrMnA | 5155 | SUP9 | 55Cr3 |
| 60CrMnA | 5160 | SUP9A | |
| 50CrVA | 6150 | SUP10A | 51CrV4 |
| 60CrMnBA | 51B60 | SUS11 | 58CrMnB4 |




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