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21CrMoV5-11(1.8070,21crmov511,21crmov5.11) Forged Forging Forge Steel Rings Seamless Hot Rolled Rings
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We are professional 21CrMoV5-11(1.8070,21crmov511,21crmov5.11) Forged Forging Forge Steel Rings Seamless Hot Rolled Rings from china
Chemical Composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.21 | 0.45 | 0.45 | 1.35 | 1.10 | max. 0.30 | 0.30 | - | - |
Soft Annealing
Heat to 650-740oC, cool slowly.
Hardening
Harden from a temperature of 900-950oC followed by oil or air quenching.
Tempering
Tempering temperature: 680-740oC.
Mechanical Properties in Quenched and Tempered Condition
| Diameter (mm) | 0.2 proof stress (N/mm2) | Tensile stregth (N/mm2) | Elongation (%) | Reduction (%) | Notch impact energy (ISO-V) (J) |
| Up to 160 | 540 | 690-830 | 16 | - | 55 |
0.2 Proof Stress (N/mm2) vs. Temperature (oC)
| 200oC | 300oC | 400oC | 500oC |
| 510 | 481 | 431 | 373 |
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