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C86700 Bronze vs. C85400 Brass

Both C86700 bronze and C85400 brass 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. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C86700 bronze and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 17
23
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 630
220
Tensile Strength: Yield (Proof), MPa 250
85

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 880
940
Melting Onset (Solidus), °C 860
940
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 89
89
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
20
Electrical Conductivity: Equal Weight (Specific), % IACS 19
22

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
40
Resilience: Unit (Modulus of Resilience), kJ/m3 290
35
Stiffness to Weight: Axial, points 7.5
7.0
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 22
7.5
Strength to Weight: Bending, points 21
9.9
Thermal Diffusivity, mm2/s 28
28
Thermal Shock Resistance, points 21
7.6

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.35
Copper (Cu), % 55 to 60
65 to 70
Iron (Fe), % 1.0 to 3.0
0 to 0.7
Lead (Pb), % 0.5 to 1.5
1.5 to 3.8
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0 to 1.5
0.5 to 1.5
Zinc (Zn), % 30 to 38
24 to 32
Residuals, % 0
0 to 1.1