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C70700 Copper-nickel vs. Grade VDC Steel

C70700 copper-nickel belongs to the copper alloys classification, while grade VDC steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is grade VDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
510
Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
80
Tensile Strength: Ultimate (UTS), MPa 320
1700

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 220
400
Melting Completion (Liquidus), °C 1120
1450
Melting Onset (Solidus), °C 1060
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 59
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 34
1.9
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.4
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 300
47

Common Calculations

Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
60
Strength to Weight: Bending, points 12
40
Thermal Diffusivity, mm2/s 17
14
Thermal Shock Resistance, points 12
50

Alloy Composition

Carbon (C), % 0
0.6 to 0.75
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 88.5 to 90.5
0 to 0.060
Iron (Fe), % 0 to 0.050
98.3 to 99.35
Manganese (Mn), % 0 to 0.5
0.5 to 1.0
Nickel (Ni), % 9.5 to 10.5
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.15 to 0.3
Sulfur (S), % 0
0 to 0.020
Residuals, % 0 to 0.5
0