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SAE-AISI S4 Steel vs. ASTM A732 Cast Steel

Both SAE-AISI S4 steel and ASTM A732 cast steel are iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S4 steel and the bottom bar is ASTM A732 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72 to 73
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
460 to 1470

Thermal Properties

Latent Heat of Fusion, J/g 280
250 to 260
Melting Completion (Liquidus), °C 1430
1440 to 1460
Melting Onset (Solidus), °C 1390
1400 to 1420
Specific Heat Capacity, J/kg-K 480
470 to 480
Thermal Conductivity, W/m-K 44
39 to 50
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.1 to 7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2 to 8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
2.0 to 3.8
Density, g/cm3 7.7
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 2.0
1.4 to 1.7
Embodied Energy, MJ/kg 29
19 to 24
Embodied Water, L/kg 48
47 to 54

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 77
16 to 52
Strength to Weight: Bending, points 22 to 48
17 to 37
Thermal Diffusivity, mm2/s 12
10 to 14
Thermal Shock Resistance, points 20 to 65
14 to 43