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DIN 1.7221 / 55Cr3 /5160 / SUP9 Hot Rolled Steel Bar ,Spring Flat Steel , Thickness : 3-100mm , black or machined
1.Specification:
Thcikness:3-100mm
Length: as your request .
2.Chemical composition
| C | Si | Mn | P | S | Cr |
| 0.52-0.59 | ≤0.04 | 0.70-1.00 | ≤0.035 | ≤0.035 | 0.70-1.00 |
3.Standard:
| ASTM | USA | Ameirican Society of Mechanical Engineers |
| AISI | USA | Acronym of American Iron and Steel Institute |
| JIS | JP | Japanese Industrial Standards |
| DIN | GER | Deutsches Institut für Normung e.V. |
| UNS | USA | Unified Numbering System |
4.