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C55284 Copper vs. C87500 Brass

Both C55284 copper and C87500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 80% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C55284 copper and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 38
42
Tensile Strength: Ultimate (UTS), MPa 180
460

Thermal Properties

Latent Heat of Fusion, J/g 180
260
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 800
920
Melting Onset (Solidus), °C 640
820
Specific Heat Capacity, J/kg-K 380
410
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 16
2.7
Embodied Energy, MJ/kg 260
44

Common Calculations

Stiffness to Weight: Axial, points 6.5
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 5.6
16
Strength to Weight: Bending, points 8.0
16
Thermal Shock Resistance, points 7.4
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 79.2 to 80.7
79 to 85
Lead (Pb), % 0
0 to 0.5
Phosphorus (P), % 4.8 to 5.2
0
Silicon (Si), % 0
3.0 to 5.0
Silver (Ag), % 14.5 to 15.5
0
Zinc (Zn), % 0
12 to 16
Residuals, % 0
0 to 0.5