EN 1.7240 (60CrMo3-2) Chromium-Molybdenum Steel
Other Steels
annealed
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength710MPa
Yield Strength430MPa
Brinell Hardness210HB
Maximum Service Temperature420°C
Chemical Composition
C
0.56 to 0.64%
CR
0.7 to 1.0%
MO
0.15 to 0.25%
MN
0.7 to 1.0%
SI
0 to 0.4%
P
0 to 0.025%
S
0 to 0.025%
FE
96.7 to 97.9%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
20 %
Fatigue Strength
300 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
440 MPa
Tensile Strength: Ultimate (UTS)
710 MPa
Tensile Strength: Yield (Proof)
430 MPa
Hardness
Brinell Hardness
210
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
420 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
44 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
21 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.4 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
500 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
25 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
2.4 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
20 MJ/kg
Embodied Energy
20 MJ/kg 8.5 x 10 3 BTU/lb
Embodied Water
50 L/kg
Embodied Water
50 L/kg 6.0 gal/lb
Registered Designations & Aliases
1.72401.724060CrMo3-260CrMo3-2EN 1.7240 (60CrMo3-2) Chromium-Molybdenum Steel
Standards
EN 10089 EN 10089: 2002 Hot rolled steels for quenched and tempered springs. Technical delivery conditions
EN 10089 EN 10089: Hot rolled steels for quenched and tempered springs - Technical delivery conditions
EN 10089 EN 10089: Hot rolled steels for quenched and tempered springs - Technical delivery conditions Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005