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C72700 Copper-nickel vs. Automotive Grey Cast Iron

C72700 copper-nickel belongs to the copper alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
180
Elongation at Break, % 4.0 to 36
9.6 to 14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
69 to 70
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
140 to 290
Tensile Strength: Yield (Proof), MPa 580 to 1060
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 210
260 to 280
Melting Completion (Liquidus), °C 1100
1380 to 1390
Melting Onset (Solidus), °C 930
1340 to 1350
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 54
41 to 43
Thermal Expansion, µm/m-K 17
12 to 14

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.9 to 3.0
Density, g/cm3 8.8
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 4.0
1.5 to 1.7
Embodied Energy, MJ/kg 62
21 to 24
Embodied Water, L/kg 350
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
25 to 110
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
5.2 to 11
Strength to Weight: Bending, points 15 to 26
8.0 to 13
Thermal Diffusivity, mm2/s 16
11 to 12
Thermal Shock Resistance, points 16 to 38
4.2 to 8.6