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C70700 Copper-nickel vs. EN 1.8958 Steel

C70700 copper-nickel belongs to the copper alloys classification, while EN 1.8958 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
130
Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 39
19
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 46
73
Shear Strength, MPa 220
270
Tensile Strength: Ultimate (UTS), MPa 320
430
Tensile Strength: Yield (Proof), MPa 110
220

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 220
410
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
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.4
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
1.5
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 300
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
70
Resilience: Unit (Modulus of Resilience), kJ/m3 51
130
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
15
Strength to Weight: Bending, points 12
16
Thermal Diffusivity, mm2/s 17
12
Thermal Shock Resistance, points 12
13

Alloy Composition

Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 88.5 to 90.5
0.2 to 0.6
Iron (Fe), % 0 to 0.050
96.5 to 99.3
Manganese (Mn), % 0 to 0.5
0.15 to 0.7
Nickel (Ni), % 9.5 to 10.5
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.45
Sulfur (S), % 0
0 to 0.040
Residuals, % 0 to 0.5
0