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C71500 Copper-nickel vs. Automotive Malleable Cast Iron

C71500 copper-nickel belongs to the copper alloys classification, while automotive malleable cast iron belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
70
Tensile Strength: Ultimate (UTS), MPa 380 to 620
350 to 720

Thermal Properties

Latent Heat of Fusion, J/g 230
260
Melting Completion (Liquidus), °C 1240
1410
Melting Onset (Solidus), °C 1170
1370
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 28
41
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 41
1.9
Density, g/cm3 8.9
7.6
Embodied Carbon, kg CO2/kg material 5.1
1.5
Embodied Energy, MJ/kg 74
20
Embodied Water, L/kg 280
45

Common Calculations

Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 19
13 to 26
Strength to Weight: Bending, points 13 to 18
14 to 24
Thermal Diffusivity, mm2/s 7.7
11
Thermal Shock Resistance, points 12 to 20
9.9 to 21

Alloy Composition

Carbon (C), % 0
2.2 to 2.9
Copper (Cu), % 63.5 to 70.6
0
Iron (Fe), % 0.4 to 1.0
93.6 to 96.7
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0.15 to 1.3
Nickel (Ni), % 29 to 33
0
Phosphorus (P), % 0
0.020 to 0.15
Silicon (Si), % 0
0.9 to 1.9
Sulfur (S), % 0
0.020 to 0.2
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0