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C86300 Bronze vs. C87500 Brass

Both C86300 bronze and C87500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 78% of their average alloy composition in common. There are 28 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 C86300 bronze and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 14
18
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 850
460
Tensile Strength: Yield (Proof), MPa 480
190

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 920
920
Melting Onset (Solidus), °C 890
820
Specific Heat Capacity, J/kg-K 420
410
Thermal Conductivity, W/m-K 35
28
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 51
44
Embodied Water, L/kg 360
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
67
Resilience: Unit (Modulus of Resilience), kJ/m3 1030
160
Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 30
16
Strength to Weight: Bending, points 25
16
Thermal Diffusivity, mm2/s 11
8.3
Thermal Shock Resistance, points 28
17

Alloy Composition

Aluminum (Al), % 5.0 to 7.5
0 to 0.5
Copper (Cu), % 60 to 66
79 to 85
Iron (Fe), % 2.0 to 4.0
0
Lead (Pb), % 0 to 0.2
0 to 0.5
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0 to 1.0
0
Silicon (Si), % 0
3.0 to 5.0
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 22 to 28
12 to 16
Residuals, % 0
0 to 0.5