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C70700 Copper-nickel vs. Grade TDSiCr Steel

C70700 copper-nickel belongs to the copper alloys classification, while grade TDSiCr 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 TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
590
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
1950

Thermal Properties

Latent Heat of Fusion, J/g 220
270
Maximum Temperature: Mechanical, °C 220
410
Melting Completion (Liquidus), °C 1120
1440
Melting Onset (Solidus), °C 1060
1400
Specific Heat Capacity, J/kg-K 390
480
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
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.2
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 3.4
1.5
Embodied Energy, MJ/kg 52
20
Embodied Water, L/kg 300
48

Common Calculations

Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 10
70
Strength to Weight: Bending, points 12
45
Thermal Diffusivity, mm2/s 17
12
Thermal Shock Resistance, points 12
58

Alloy Composition

Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 88.5 to 90.5
0 to 0.1
Iron (Fe), % 0 to 0.050
96.6 to 97.8
Manganese (Mn), % 0 to 0.5
0.5 to 0.9
Nickel (Ni), % 9.5 to 10.5
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
1.2 to 1.6
Sulfur (S), % 0
0 to 0.020
Residuals, % 0 to 0.5
0