EN 1.7725 (G30CrMoV6-4) Cast Steel
Other Steels
quenched and tempered
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength830MPa
Yield Strength610MPa
Brinell Hardness250HB
Maximum Service Temperature440°C
Chemical Composition
C
0.27 to 0.34%
CR
1.3 to 1.7%
MO
0.3 to 0.5%
MN
0.6 to 1.0%
SI
0 to 0.6%
P
0 to 0.025%
S
0 to 0.030%
V
0.050 to 0.15%
FE
95.7 to 97.5%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
14 %
Fatigue Strength
390 MPa
Impact Strength: V-Notched Charpy
34 J
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Tensile Strength: Ultimate (UTS)
830 MPa
Tensile Strength: Yield (Proof)
610 MPa
Hardness
Brinell Hardness
250
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
440 °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
24 points
Electrical
Electrical Conductivity: Equal Volume
7.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.6 % IACS
Calculated
PREN (Pitting Resistance)
2.8
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
980 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
29 points
Strength to Weight: Bending
25 points
Environmental
Base Metal Price
2.9 % relative
Embodied Carbon
1.8 kg CO 2 /kg material
Embodied Energy
24 MJ/kg
Embodied Energy
24 MJ/kg 11 x 10 3 BTU/lb
Embodied Water
54 L/kg
Embodied Water
54 L/kg 6.5 gal/lb
Registered Designations & Aliases
1.77251.7725EN 1.7725 (G30CrMoV6-4) Cast SteelG30CrMoV6-4G30CrMoV6-4
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 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005