EN 1.7227 (42CrMoS4) Chromium-Molybdenum Steel
Other Steels
spheroidized
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength540MPa
Yield StrengthUnknown
Brinell Hardness160HB
Maximum Service Temperature420°C
Chemical Composition
C
0.38 to 0.45%
CR
0.9 to 1.2%
MO
0.15 to 0.3%
MN
0.6 to 0.9%
SI
0 to 0.3%
P
0 to 0.025%
S
0.020 to 0.040%
CU
0 to 0.25%
FE
96.5 to 98%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Poisson's Ratio
0.29
Reduction in Area
65 %
Shear Modulus
73 GPa
Tensile Strength: Ultimate (UTS)
540 MPa
Hardness
Brinell Hardness
160
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)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
46 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
16 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.4 % IACS
Calculated
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
2.5 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
20 MJ/kg
Embodied Energy
20 MJ/kg 8.6 x 10 3 BTU/lb
Embodied Water
51 L/kg
Embodied Water
51 L/kg 6.1 gal/lb
Registered Designations & Aliases
1.72271.722742CrMoS442CrMoS4EN 1.7227 (42CrMoS4) Chromium-Molybdenum Steel
Standards
EN 10083-3 EN 10083-3: 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels
EN 10263-4 EN 10263-4: 2001 Steel rod, bars and wire for cold heading and cold extrusion. Technical delivery conditions for steels for quenching and tempering
EN 10263-4 EN 10263-4: Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering
EN 10277-5 EN 10277-5: 2008 Bright steel products. Technical delivery conditions. Steels for quenching and tempering