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CR017A Copper vs. C94800 Bronze

Both CR017A copper and C94800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is CR017A copper and the bottom bar is C94800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
22
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 230
310
Tensile Strength: Yield (Proof), MPa 140
160

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
190
Melting Completion (Liquidus), °C 1090
1030
Melting Onset (Solidus), °C 1040
900
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 380
39
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
12
Electrical Conductivity: Equal Weight (Specific), % IACS 100
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
34
Density, g/cm3 9.0
8.8
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 42
56
Embodied Water, L/kg 340
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
58
Resilience: Unit (Modulus of Resilience), kJ/m3 83
110
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.1
9.8
Strength to Weight: Bending, points 9.3
12
Thermal Diffusivity, mm2/s 110
12
Thermal Shock Resistance, points 8.1
11

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.944 to 99.97
84 to 89
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
0.3 to 1.0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
4.5 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0.030 to 0.050
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 0
1.0 to 2.5
Residuals, % 0
0 to 1.3