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C81500 Copper vs. C95520 Bronze

Both C81500 copper and C95520 bronze are copper alloys. Both are furnished in the heat treated (HT) condition. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C81500 copper and the bottom bar is C95520 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
280
Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 17
2.6
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
44
Tensile Strength: Ultimate (UTS), MPa 350
970
Tensile Strength: Yield (Proof), MPa 280
530

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Maximum Temperature: Mechanical, °C 200
240
Melting Completion (Liquidus), °C 1090
1070
Melting Onset (Solidus), °C 1080
1020
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 320
40
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
11
Electrical Conductivity: Equal Weight (Specific), % IACS 83
12

Otherwise Unclassified Properties

Base Metal Price, % relative 31
29
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 2.6
3.6
Embodied Energy, MJ/kg 41
58
Embodied Water, L/kg 310
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
21
Resilience: Unit (Modulus of Resilience), kJ/m3 330
1210
Stiffness to Weight: Axial, points 7.3
8.0
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 11
33
Strength to Weight: Bending, points 12
27
Thermal Diffusivity, mm2/s 91
11
Thermal Shock Resistance, points 12
33

Alloy Composition


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Aluminum (Al), % 0 to 0.1
10.5 to 11.5
Chromium (Cr), % 0.4 to 1.5
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 97.4 to 99.6
74.5 to 81.3
Iron (Fe), % 0 to 0.1
4.0 to 5.5
Lead (Pb), % 0 to 0.020
0 to 0.030
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Silicon (Si), % 0 to 0.15
0 to 0.15
Tin (Sn), % 0 to 0.1
0 to 0.25
Zinc (Zn), % 0 to 0.1
0 to 0.3
Residuals, % 0 to 0.5
0 to 0.5