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ASTM A732 Cast Steel vs. C71640 Copper-nickel

ASTM A732 cast steel belongs to the iron alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A732 cast steel and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72 to 73
52
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
490 to 630
Tensile Strength: Yield (Proof), MPa 310 to 1340
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
240
Maximum Temperature: Mechanical, °C 400 to 430
260
Melting Completion (Liquidus), °C 1440 to 1460
1180
Melting Onset (Solidus), °C 1400 to 1420
1120
Specific Heat Capacity, J/kg-K 470 to 480
410
Thermal Conductivity, W/m-K 39 to 50
29
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.9
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
40
Density, g/cm3 7.8 to 7.9
8.9
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
5.0
Embodied Energy, MJ/kg 19 to 24
73
Embodied Water, L/kg 47 to 54
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
130 to 750
Stiffness to Weight: Axial, points 13
8.7
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 16 to 52
15 to 20
Strength to Weight: Bending, points 17 to 37
16 to 18
Thermal Diffusivity, mm2/s 10 to 14
8.2
Thermal Shock Resistance, points 14 to 43
16 to 21