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C70700 Copper-nickel vs. C94900 Bronze

Both C70700 copper-nickel and C94900 bronze are copper alloys. They have 85% of their average alloy composition in common. There are 26 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 C94900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 39
17
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 46
41
Tensile Strength: Ultimate (UTS), MPa 320
300
Tensile Strength: Yield (Proof), MPa 110
130

Thermal Properties

Latent Heat of Fusion, J/g 220
190
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 1120
980
Melting Onset (Solidus), °C 1060
910
Specific Heat Capacity, J/kg-K 390
370
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
14
Electrical Conductivity: Equal Weight (Specific), % IACS 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 34
32
Density, g/cm3 8.9
8.8
Embodied Carbon, kg CO2/kg material 3.4
3.4
Embodied Energy, MJ/kg 52
55
Embodied Water, L/kg 300
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
41
Resilience: Unit (Modulus of Resilience), kJ/m3 51
72
Stiffness to Weight: Axial, points 7.6
6.9
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 10
9.4
Strength to Weight: Bending, points 12
11
Thermal Shock Resistance, points 12
11

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 88.5 to 90.5
79 to 81
Iron (Fe), % 0 to 0.050
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Manganese (Mn), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 9.5 to 10.5
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0
4.0 to 6.0
Residuals, % 0 to 0.5
0 to 0.8