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C63020 Bronze vs. C70620 Copper-nickel

Both C63020 bronze and C70620 copper-nickel are copper alloys. They have 86% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C63020 bronze and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 44
46
Tensile Strength: Ultimate (UTS), MPa 1020
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 230
220
Maximum Temperature: Mechanical, °C 230
220
Melting Completion (Liquidus), °C 1070
1120
Melting Onset (Solidus), °C 1020
1060
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 40
49
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
33
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 3.6
3.4
Embodied Energy, MJ/kg 58
51
Embodied Water, L/kg 390
300

Common Calculations

Stiffness to Weight: Axial, points 8.0
7.7
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 34
9.3 to 18
Strength to Weight: Bending, points 27
11 to 17
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 35
10 to 20

Alloy Composition

Aluminum (Al), % 10 to 11
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.050
0
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 74.7 to 81.8
86.5 to 90
Iron (Fe), % 4.0 to 5.5
1.0 to 1.8
Lead (Pb), % 0 to 0.030
0 to 0.020
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 4.2 to 6.0
9.0 to 11
Phosphorus (P), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.3
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.5