ASTM A732 Cast Steel vs. C96900 Copper-nickel

ASTM A732 cast steel belongs to the iron alloys classification, while C96900 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 C96900 copper-nickel.

ASTM A732 Investment Cast Steel UNS C96900 Copper-Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		4.0 to 25
Elongation at Break, %		4.5

Poisson's Ratio		0.29
Poisson's Ratio		0.34

Shear Modulus, GPa		72 to 73
Shear Modulus, GPa		45

Tensile Strength: Ultimate (UTS), MPa		460 to 1470
Tensile Strength: Ultimate (UTS), MPa		850

Tensile Strength: Yield (Proof), MPa		310 to 1340
Tensile Strength: Yield (Proof), MPa		830

Thermal Properties

Latent Heat of Fusion, J/g		250 to 260
Latent Heat of Fusion, J/g		210

Maximum Temperature: Mechanical, °C		400 to 430
Maximum Temperature: Mechanical, °C		210

Melting Completion (Liquidus), °C		1440 to 1460
Melting Completion (Liquidus), °C		1060

Melting Onset (Solidus), °C		1400 to 1420
Melting Onset (Solidus), °C		960

Specific Heat Capacity, J/kg-K		470 to 480
Specific Heat Capacity, J/kg-K		380

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		7.1 to 7.7
Electrical Conductivity: Equal Volume, % IACS		9.0

Electrical Conductivity: Equal Weight (Specific), % IACS		8.2 to 8.9
Electrical Conductivity: Equal Weight (Specific), % IACS		9.2

Otherwise Unclassified Properties

Base Metal Price, % relative		2.0 to 3.8
Base Metal Price, % relative		39

Density, g/cm³		7.8 to 7.9
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		1.4 to 1.7
Embodied Carbon, kg CO₂/kg material		4.6

Embodied Energy, MJ/kg		19 to 24
Embodied Energy, MJ/kg		72

Embodied Water, L/kg		47 to 54
Embodied Water, L/kg		360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		45 to 130
Resilience: Ultimate (Unit Rupture Work), MJ/m³		38

Resilience: Unit (Modulus of Resilience), kJ/m³		260 to 4770
Resilience: Unit (Modulus of Resilience), kJ/m³		2820

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		7.7

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		16 to 52
Strength to Weight: Axial, points		27

Strength to Weight: Bending, points		17 to 37
Strength to Weight: Bending, points		23

Thermal Shock Resistance, points		14 to 43
Thermal Shock Resistance, points		30