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C70700 Copper-nickel vs. EN 1.6957 Steel

C70700 copper-nickel belongs to the copper alloys classification, while EN 1.6957 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
280
Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 39
18
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
73
Shear Strength, MPa 220
570
Tensile Strength: Ultimate (UTS), MPa 320
930
Tensile Strength: Yield (Proof), MPa 110
780

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 220
450
Melting Completion (Liquidus), °C 1120
1460
Melting Onset (Solidus), °C 1060
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 59
47
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 34
5.0
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
2.1
Embodied Energy, MJ/kg 52
29
Embodied Water, L/kg 300
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
160
Resilience: Unit (Modulus of Resilience), kJ/m3 51
1630
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
33
Strength to Weight: Bending, points 12
27
Thermal Diffusivity, mm2/s 17
13
Thermal Shock Resistance, points 12
27

Alloy Composition

Carbon (C), % 0
0.22 to 0.32
Chromium (Cr), % 0
1.2 to 1.8
Copper (Cu), % 88.5 to 90.5
0
Iron (Fe), % 0 to 0.050
92.7 to 94.7
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 9.5 to 10.5
3.4 to 4.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.0070
Vanadium (V), % 0
0.050 to 0.15
Residuals, % 0 to 0.5
0