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C95820 Bronze vs. C95700 Bronze

Both C95820 bronze and C95700 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is C95820 bronze and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
130
Elongation at Break, % 15
23
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 44
47
Tensile Strength: Ultimate (UTS), MPa 730
680
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 230
230
Maximum Temperature: Mechanical, °C 230
220
Melting Completion (Liquidus), °C 1080
990
Melting Onset (Solidus), °C 1020
950
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 38
12
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
26
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 3.5
3.3
Embodied Energy, MJ/kg 56
54
Embodied Water, L/kg 380
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
130
Resilience: Unit (Modulus of Resilience), kJ/m3 400
390
Stiffness to Weight: Axial, points 8.0
8.5
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 25
21

Alloy Composition

Aluminum (Al), % 9.0 to 10
7.0 to 8.5
Copper (Cu), % 77.5 to 82.5
71 to 78.5
Iron (Fe), % 4.0 to 5.0
2.0 to 4.0
Lead (Pb), % 0 to 0.020
0 to 0.030
Manganese (Mn), % 0 to 1.5
11 to 14
Nickel (Ni), % 4.5 to 5.8
1.5 to 3.0
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.5