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C64700 Bronze vs. C18900 Copper

Both C64700 bronze and C18900 copper are copper alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is C64700 bronze and the bottom bar is C18900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 9.0
14 to 48
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 44
43
Shear Strength, MPa 390
190 to 300
Tensile Strength: Ultimate (UTS), MPa 660
260 to 500
Tensile Strength: Yield (Proof), MPa 560
67 to 390

Thermal Properties

Latent Heat of Fusion, J/g 220
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 1090
1080
Melting Onset (Solidus), °C 1030
1020
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 210
130
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
30
Electrical Conductivity: Equal Weight (Specific), % IACS 38
30

Otherwise Unclassified Properties

Base Metal Price, % relative 31
31
Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 43
42
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
65 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 1370
20 to 660
Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 21
8.2 to 16
Strength to Weight: Bending, points 19
10 to 16
Thermal Diffusivity, mm2/s 59
38
Thermal Shock Resistance, points 24
9.3 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 95.8 to 98
97.7 to 99.15
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.1
0 to 0.020
Manganese (Mn), % 0
0.1 to 0.3
Nickel (Ni), % 1.6 to 2.2
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0.4 to 0.8
0.15 to 0.4
Tin (Sn), % 0
0.6 to 0.9
Zinc (Zn), % 0 to 0.5
0 to 0.1
Residuals, % 0
0 to 0.5