EN 1.8522 (33CrMoV12-9) High-Temperature Bearing Steel
Other Steels
quenched and tempered
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength1250MPa
Yield Strength1080MPa
Brinell Hardness380HB
Maximum Service Temperature470°C
Chemical Composition
C
0.29 to 0.36%
CR
2.8 to 3.3%
NI
0 to 0.3%
MO
0.7 to 1.2%
MN
0.4 to 0.7%
SI
0 to 0.4%
P
0 to 0.025%
S
0 to 0.035%
CU
0 to 0.1%
V
0.15 to 0.25%
FE
93.7 to 96%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
13 %
Fatigue Strength
680 MPa
Impact Strength: V-Notched Charpy
34 J
Poisson's Ratio
0.29
Shear Modulus
74 GPa
Shear Strength
750 MPa
Tensile Strength: Ultimate (UTS)
1250 MPa
Tensile Strength: Yield (Proof)
1080 MPa
Hardness
Brinell Hardness
380
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
470 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
39 W/m-K
Thermal Diffusivity
11 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
36 points
Electrical
Electrical Conductivity: Equal Volume
7.8 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.9 % IACS
Calculated
PREN (Pitting Resistance)
6.2
Resilience: Ultimate (Unit Rupture Work)
150 MJ/m 3
Resilience: Unit (Modulus of Resilience)
3090 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
44 points
Strength to Weight: Bending
33 points
Environmental
Base Metal Price
4.2 % relative
Embodied Carbon
2.2 kg CO 2 /kg material
Embodied Energy
31 MJ/kg
Embodied Energy
31 MJ/kg 13 x 10 3 BTU/lb
Embodied Water
63 L/kg
Embodied Water
63 L/kg 7.5 gal/lb
Registered Designations & Aliases
1.85221.852233CrMoV12-933CrMoV12-9EN 1.8522 (33CrMoV12-9) High-Temperature Bearing Steel
Standards
EN 10085 EN 10085: 2001 Nitriding steel. Technical delivery conditions
ISO 683-17 ISO 683-17: Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels
ISO 683-5 ISO 683-5: Heat treatable steels, alloy steels and free-cutting steels - Part 5: Nitriding steels
ISO 683-5 ISO 683-5: Heat treatable steels, alloy steels and free-cutting steels - Part 5: Nitriding steels ISO 683-17: Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005