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C86800 Bronze vs. C87400 Brass

Both C86800 bronze and C87400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C86800 bronze and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 22
21
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 570
390
Tensile Strength: Yield (Proof), MPa 260
160

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Maximum Temperature: Mechanical, °C 140
170
Melting Completion (Liquidus), °C 900
920
Melting Onset (Solidus), °C 880
820
Specific Heat Capacity, J/kg-K 400
400
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
27
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 51
44
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
65
Resilience: Unit (Modulus of Resilience), kJ/m3 310
120
Stiffness to Weight: Axial, points 7.7
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 20
13
Strength to Weight: Bending, points 19
14
Thermal Shock Resistance, points 18
14

Alloy Composition

Aluminum (Al), % 0 to 2.0
0 to 0.8
Copper (Cu), % 53.5 to 57
79 to 85.5
Iron (Fe), % 1.0 to 2.5
0
Lead (Pb), % 0 to 0.2
0 to 1.0
Manganese (Mn), % 2.5 to 4.0
0
Nickel (Ni), % 2.5 to 4.0
0
Silicon (Si), % 0
2.5 to 4.0
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 28.3 to 40.5
12 to 16
Residuals, % 0
0 to 0.8