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C72700 Copper-nickel vs. EN 1.7108 Steel

C72700 copper-nickel belongs to the copper alloys classification, while EN 1.7108 steel belongs to the iron alloys. There are 24 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 C72700 copper-nickel and the bottom bar is EN 1.7108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
72
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
410
Melting Completion (Liquidus), °C 1100
1430
Melting Onset (Solidus), °C 930
1390
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 54
46
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.1
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 4.0
1.5
Embodied Energy, MJ/kg 62
20
Embodied Water, L/kg 350
47

Common Calculations

Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
24 to 75
Strength to Weight: Bending, points 15 to 26
22 to 47
Thermal Diffusivity, mm2/s 16
12
Thermal Shock Resistance, points 16 to 38
20 to 63

Alloy Composition

Carbon (C), % 0
0.57 to 0.65
Chromium (Cr), % 0
0.2 to 0.45
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
95.9 to 96.9
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0.7 to 1.0
Nickel (Ni), % 8.5 to 9.5
0
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
1.6 to 2.0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0