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C87500 Brass vs. C96800 Copper

Both C87500 brass and C96800 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is C87500 brass and the bottom bar is C96800 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 18
3.4
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
46
Tensile Strength: Ultimate (UTS), MPa 460
1010
Tensile Strength: Yield (Proof), MPa 190
860

Thermal Properties

Latent Heat of Fusion, J/g 260
220
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 920
1120
Melting Onset (Solidus), °C 820
1060
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 28
52
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
10
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 27
34
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 44
52
Embodied Water, L/kg 300
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
33
Resilience: Unit (Modulus of Resilience), kJ/m3 160
3000
Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
32
Strength to Weight: Bending, points 16
25
Thermal Diffusivity, mm2/s 8.3
15
Thermal Shock Resistance, points 17
35

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0 to 0.1
Antimony (Sb), % 0
0 to 0.020
Copper (Cu), % 79 to 85
87.1 to 90.5
Iron (Fe), % 0
0 to 0.5
Lead (Pb), % 0 to 0.5
0 to 0.0050
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
9.5 to 10.5
Phosphorus (P), % 0
0 to 0.0050
Silicon (Si), % 3.0 to 5.0
0
Sulfur (S), % 0
0 to 0.0025
Zinc (Zn), % 12 to 16
0 to 1.0
Residuals, % 0 to 0.5
0 to 0.5