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C70700 Copper-nickel vs. Automotive Grey Cast Iron

C70700 copper-nickel belongs to the copper alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 28 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 C70700 copper-nickel and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
160 to 280
Elastic (Young's, Tensile) Modulus, GPa 120
180
Elongation at Break, % 39
9.6 to 14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
69 to 70
Tensile Strength: Ultimate (UTS), MPa 320
140 to 290
Tensile Strength: Yield (Proof), MPa 110
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 220
260 to 280
Melting Completion (Liquidus), °C 1120
1380 to 1390
Melting Onset (Solidus), °C 1060
1340 to 1350
Specific Heat Capacity, J/kg-K 390
490
Thermal Conductivity, W/m-K 59
41 to 43
Thermal Expansion, µm/m-K 16
12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 34
1.9 to 3.0
Density, g/cm3 8.9
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 3.4
1.5 to 1.7
Embodied Energy, MJ/kg 52
21 to 24
Embodied Water, L/kg 300
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 51
25 to 110
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 10
5.2 to 11
Strength to Weight: Bending, points 12
8.0 to 13
Thermal Diffusivity, mm2/s 17
11 to 12
Thermal Shock Resistance, points 12
4.2 to 8.6