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55SiCrA / A21553 Spring Steel
Material Name
Material Name: 55Si2CrA / A21553
Execution standard: GB/T 1222-2007
Chemical Composition
| ■Chemical Composition(％) |
|
|
|
||||
| C | Si | Mn | Cr |
Ni |
Cu |
P | S |
| 0.51-0.59 | 1.2-1.6 | 0.5-0.8 |
0.5-0.8 |
Max 0.35 |
Max 0.25 |
Max 0.025 | Max 0.025 |
Physical Properties
| ■Characteristic |
|
|
|
|
|
Tensile strength /MPa |
Yield Strength /MPa |
Elongation of cross section /％ |
Reduction of cross section /％ |
Hardness (HBW) |
|
1450-1750 |
Above 1300 |
Above 6 |
Above 25 |
Below 321 |
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