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ASTM A732 Cast Steel vs. ACI-ASTM CA40 Steel

Both ASTM A732 cast steel and ACI-ASTM CA40 steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A732 cast steel and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 440
310
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.0 to 25
10
Fatigue Strength, MPa 230 to 750
460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72 to 73
76
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
910
Tensile Strength: Yield (Proof), MPa 310 to 1340
860

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
280
Maximum Temperature: Mechanical, °C 400 to 430
750
Melting Completion (Liquidus), °C 1440 to 1460
1440
Melting Onset (Solidus), °C 1400 to 1420
1500
Specific Heat Capacity, J/kg-K 470 to 480
480
Thermal Conductivity, W/m-K 39 to 50
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
7.5
Density, g/cm3 7.8 to 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
2.0
Embodied Energy, MJ/kg 19 to 24
28
Embodied Water, L/kg 47 to 54
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
89
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
1910
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 52
33
Strength to Weight: Bending, points 17 to 37
27
Thermal Diffusivity, mm2/s 10 to 14
6.7
Thermal Shock Resistance, points 14 to 43
33