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CR018A Copper vs. C95800 Bronze

Both CR018A copper and C95800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is CR018A copper and the bottom bar is C95800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 15
22
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
44
Tensile Strength: Ultimate (UTS), MPa 220
660
Tensile Strength: Yield (Proof), MPa 130
270

Thermal Properties

Latent Heat of Fusion, J/g 210
230
Maximum Temperature: Mechanical, °C 200
230
Melting Completion (Liquidus), °C 1090
1060
Melting Onset (Solidus), °C 1040
1040
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 390
36
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
7.6

Otherwise Unclassified Properties

Base Metal Price, % relative 33
29
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 42
55
Embodied Water, L/kg 360
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
110
Resilience: Unit (Modulus of Resilience), kJ/m3 76
310
Stiffness to Weight: Axial, points 7.2
7.9
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
22
Strength to Weight: Bending, points 9.0
20
Thermal Diffusivity, mm2/s 110
9.9
Thermal Shock Resistance, points 7.8
23

Alloy Composition

Aluminum (Al), % 0
8.5 to 9.5
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.914 to 99.94
79 to 83.2
Iron (Fe), % 0
3.5 to 4.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0
0.8 to 1.5
Nickel (Ni), % 0
4.0 to 5.0
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0.060 to 0.080
0
Residuals, % 0
0 to 0.5