EN 1.7230 (G34CrMo4) Cast Steel
Other Steels
quenched and tempered
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength720MPa
Yield Strength510MPa
Brinell Hardness220HB
Maximum Service Temperature420°C
Chemical Composition
C
0.3 to 0.37%
CR
0.8 to 1.2%
MO
0.15 to 0.3%
MN
0.5 to 0.8%
SI
0 to 0.6%
P
0 to 0.025%
S
0 to 0.030%
FE
96.7 to 98.3%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
12 %
Fatigue Strength
320 MPa
Impact Strength: V-Notched Charpy
29 J
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Tensile Strength: Ultimate (UTS)
720 MPa
Tensile Strength: Yield (Proof)
510 MPa
Hardness
Brinell Hardness
220
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
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)
79 MJ/m 3
Resilience: Unit (Modulus of Resilience)
700 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
26 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
51 L/kg
Embodied Water
51 L/kg 6.0 gal/lb
Registered Designations & Aliases
1.72301.7230EN 1.7230 (G34CrMo4) Cast SteelG34CrMo4G34CrMo4
Standards
EN 10293 EN 10293: 2005 Steel castings for general engineering uses
EN 10293 EN 10293: Steel castings - Steel castings for general engineering uses
EN 10293 EN 10293: Steel castings - Steel castings for general engineering uses Welding Metallurgy, 2nd ed., Sindo Kou, 2003 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005