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C63020 Bronze vs. C72700 Copper-nickel

Both C63020 bronze and C72700 copper-nickel are copper alloys. They have 84% of their average alloy composition in common. There are 27 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 C63020 bronze and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 6.8
4.0 to 36
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 44
44
Shear Strength, MPa 600
310 to 620
Tensile Strength: Ultimate (UTS), MPa 1020
460 to 1070
Tensile Strength: Yield (Proof), MPa 740
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 230
210
Maximum Temperature: Mechanical, °C 230
200
Melting Completion (Liquidus), °C 1070
1100
Melting Onset (Solidus), °C 1020
930
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 40
54
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
36
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 3.6
4.0
Embodied Energy, MJ/kg 58
62
Embodied Water, L/kg 390
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 2320
1420 to 4770
Stiffness to Weight: Axial, points 8.0
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 34
14 to 34
Strength to Weight: Bending, points 27
15 to 26
Thermal Diffusivity, mm2/s 11
16
Thermal Shock Resistance, points 35
16 to 38

Alloy Composition


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Aluminum (Al), % 10 to 11
0
Chromium (Cr), % 0 to 0.050
0
Cobalt (Co), % 0 to 0.2
0
Copper (Cu), % 74.7 to 81.8
82.1 to 86
Iron (Fe), % 4.0 to 5.5
0 to 0.5
Lead (Pb), % 0 to 0.030
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 1.5
0.050 to 0.3
Nickel (Ni), % 4.2 to 6.0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 0 to 0.25
5.5 to 6.5
Zinc (Zn), % 0 to 0.3
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.3