21CrMoV5-11 / 1.8070 Steel
Chemical Composition per EN 10269
GRADE | NUMBER | C | Si | Mn | P | S | Cr | Mo | Ni | V |
21CrMoV5-11 | 1.8070 | 0.17-0.25 | 0.30-0.60 | 0.30-0.60 | ≤ 0.035 | ≤ 0.035 | 1.20-1.50 | 1.00-1.20 | ≤ 0.60 | 0.25-0.35 |
21CrMoV5-11 / 1.8070 Steel Description
Special structural steel.
21CrMoV5-11 / 1.8070 Steel Applications
Screws and nuts and forged components for staem engines up to working temperatures of maximum 539 degree.
21CrMoV5-11 / 1.8070 Steel Mechanical Properties
Hot working temperature /℃: 1100~850
Heat treatment temperature /℃|annealing / normalizing: 650~740
Heat treatment temperature /℃|quenching: 900~950 Oil or Air
Heat treatment temperature /℃|tempering: 680~740
HBW: 205~250
(≥)|σb/MPa: 690~830
(≥)|σs/MPa: 540
(≥)|δ5(%): 16
(≥)|AKV/J: 55
Mechanical Property Under High Temperature
Yield strength σ0.2≥/MPa|200℃: 510
Yield strength σ0.2≥/MPa|300℃: 481
Yield strength σ0.2≥/MPa|350℃: 461
Yield strength σ0.2≥/MPa|400℃: 431
Yield strength σ0.2≥/MPa|450℃: 402
Yield strength σ0.2≥/MPa|500℃: 373
21CrMoV5-11 / 1.8070 Steel Available Shapes
Black bar /Flat bar / Square bar /Pipe, /Steel strip, /sheet
Bright – peeled + polishing, centerless grinding
Forged – ring, tube, pipe casing, discs, shaft
Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2 ]: 210 Density [g/cm3 ]: 7.80 Continuous Cooling Transformation (CCT)
21CrMoV5-11 / 1.8070 Steel Soft Annealing
Heat to 650-740 degree, cool slowly.
21CrMoV5-11 / 1.8070 Steel Hardening
Harden from a temperature of 900-950 degree followed by oil or air quenching.
21CrMoV5-11 / 1.8070 Steel Tempering
Tempering temperature: 680-740 degree.
21CrMoV5-11 / 1.8070 Steel Forging
Hot forming temperature: 1100-850degree.
Page Contents
- Chemical Composition per EN 10269
- 21CrMoV5-11 / 1.8070 Steel Description
- 21CrMoV5-11 / 1.8070 Steel Applications
- 21CrMoV5-11 / 1.8070 Steel Mechanical Properties
- Mechanical Property Under High Temperature
- 21CrMoV5-11 / 1.8070 Steel Available Shapes
- Physical properties (average values) at ambient temperature
- 21CrMoV5-11 / 1.8070 Steel Soft Annealing
- 21CrMoV5-11 / 1.8070 Steel Hardening
- 21CrMoV5-11 / 1.8070 Steel Tempering
- 21CrMoV5-11 / 1.8070 Steel Forging