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C86300 Bronze vs. C72900 Copper-nickel

Both C86300 bronze and C72900 copper-nickel are copper alloys. They have 64% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C86300 bronze and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 14
6.0 to 20
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 42
45
Tensile Strength: Ultimate (UTS), MPa 850
870 to 1080
Tensile Strength: Yield (Proof), MPa 480
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 920
1120
Melting Onset (Solidus), °C 890
950
Specific Heat Capacity, J/kg-K 420
380
Thermal Conductivity, W/m-K 35
29
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 23
39
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.0
4.6
Embodied Energy, MJ/kg 51
72
Embodied Water, L/kg 360
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 1030
2030 to 3490
Stiffness to Weight: Axial, points 7.8
7.6
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 30
27 to 34
Strength to Weight: Bending, points 25
23 to 27
Thermal Diffusivity, mm2/s 11
8.6
Thermal Shock Resistance, points 28
31 to 38

Alloy Composition

Aluminum (Al), % 5.0 to 7.5
0
Copper (Cu), % 60 to 66
74.1 to 78
Iron (Fe), % 2.0 to 4.0
0 to 0.5
Lead (Pb), % 0 to 0.2
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 2.5 to 5.0
0 to 0.3
Nickel (Ni), % 0 to 1.0
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 0 to 0.2
7.5 to 8.5
Zinc (Zn), % 22 to 28
0 to 0.5
Residuals, % 0 to 1.0
0 to 0.3