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1.8070 21CrMoV5-11 21crmov511 21crmov5.1 Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tube tubings barrels Casing Cases Shells cylinders hubs housings
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We are professional 1.8070 21CrMoV5-11 21crmov511 21crmov5.1 Forged Forging forge Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tube tubings barrels Casing Cases Shells cylinders hubs housings from china
hemical 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 |
1% Creep Limit (N/mm2) vs. Temperature (oC)
Hours | 450oC | 500oC | 540oC |
10 000 | 353 | 235 | 120 |
100 000 | 275 | 167 | 68 |
Creep Rapture Strength (N/mm2) vs. Temperature (oC)
Hours | 450oC | 500oC | 540oC |
10 000 | 441 | 304 | 180 |
100 000 | 343 | 211 | 102 |
Forging
Hot forming temperature: 1100-850oC.
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