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Ductile Cast Iron vs. C71000 Copper-nickel

Ductile cast iron belongs to the iron alloys classification, while C71000 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ductile cast iron and the bottom bar is C71000 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
130
Poisson's Ratio 0.28 to 0.31
0.33
Shear Modulus, GPa 64 to 70
49
Tensile Strength: Ultimate (UTS), MPa 460 to 920
320 to 560

Thermal Properties

Latent Heat of Fusion, J/g 270
230
Maximum Temperature: Mechanical, °C 290
240
Melting Completion (Liquidus), °C 1160
1200
Melting Onset (Solidus), °C 1120
1150
Specific Heat Capacity, J/kg-K 490
400
Thermal Conductivity, W/m-K 31 to 36
43
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
37
Density, g/cm3 7.1 to 7.5
8.9
Embodied Carbon, kg CO2/kg material 1.5
4.3
Embodied Energy, MJ/kg 21
63
Embodied Water, L/kg 43
290

Common Calculations

Stiffness to Weight: Axial, points 12 to 14
8.2
Stiffness to Weight: Bending, points 24 to 26
19
Strength to Weight: Axial, points 17 to 35
10 to 18
Strength to Weight: Bending, points 18 to 29
12 to 17
Thermal Diffusivity, mm2/s 8.9 to 10
12
Thermal Shock Resistance, points 17 to 35
12 to 20

Alloy Composition

Carbon (C), % 3.0 to 3.5
0
Copper (Cu), % 0
73.5 to 80.5
Iron (Fe), % 93.7 to 95.5
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
19 to 23
Phosphorus (P), % 0 to 0.080
0
Silicon (Si), % 1.5 to 2.8
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5

Comparable Variants