ASTM A356 Grade 8 (J11697) Cast Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength630MPa
Yield Strength390MPa
Brinell Hardness190HB
Maximum Service Temperature440°C
Chemical Composition
C
0 to 0.2%
CR
1.0 to 1.5%
MO
0.9 to 1.2%
MN
0.5 to 0.9%
SI
0.2 to 0.6%
P
0 to 0.035%
S
0 to 0.030%
V
0.050 to 0.15%
FE
95.4 to 97.4%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
21 %
Fatigue Strength
270 MPa
Poisson's Ratio
0.29
Reduction in Area
50 %
Shear Modulus
73 GPa
Tensile Strength: Ultimate (UTS)
630 MPa
Tensile Strength: Yield (Proof)
390 MPa
Hardness
Brinell Hardness
190
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
440 °C
Melting Completion (Liquidus)
1470 °C
Melting Onset (Solidus)
1430 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
38 W/m-K
Thermal Diffusivity
10 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
18 points
Electrical
Electrical Conductivity: Equal Volume
7.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.6 % IACS
Calculated
PREN (Pitting Resistance)
4.7
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
390 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
22 points
Strength to Weight: Bending
21 points
Environmental
Base Metal Price
3.5 % relative
Embodied Carbon
2.0 kg CO 2 /kg material
Embodied Energy
26 MJ/kg
Embodied Energy
26 MJ/kg 11 x 10 3 BTU/lb
Embodied Water
55 L/kg
Embodied Water
55 L/kg 6.6 gal/lb
Registered Designations & Aliases
ASTM A356 Grade 8 (J11697) Cast SteelJ11697
Standards
ASTM A356 ASTM A356: Standard Specification for Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walled for Steam Turbines