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C86700 Bronze vs. C86400 Bronze

Both C86700 bronze and C86400 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is C86700 bronze and the bottom bar is C86400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
17
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 630
470
Tensile Strength: Yield (Proof), MPa 250
150

Thermal Properties

Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 880
880
Melting Onset (Solidus), °C 860
860
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 89
88
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
19
Electrical Conductivity: Equal Weight (Specific), % IACS 19
22

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 49
48
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
63
Resilience: Unit (Modulus of Resilience), kJ/m3 290
110
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 28
29
Thermal Shock Resistance, points 21
16

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0.5 to 1.5
Copper (Cu), % 55 to 60
56 to 62
Iron (Fe), % 1.0 to 3.0
0.4 to 2.0
Lead (Pb), % 0.5 to 1.5
0.5 to 1.5
Manganese (Mn), % 1.0 to 3.5
0.1 to 1.0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Tin (Sn), % 0 to 1.5
0.5 to 1.5
Zinc (Zn), % 30 to 38
34 to 42
Residuals, % 0
0 to 1.0