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C85400 Brass vs. C55284 Copper

Both C85400 brass and C55284 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C85400 brass and the bottom bar is C55284 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
38
Tensile Strength: Ultimate (UTS), MPa 220
180

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 940
800
Melting Onset (Solidus), °C 940
640
Specific Heat Capacity, J/kg-K 380
380
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.8
16
Embodied Energy, MJ/kg 46
260

Common Calculations

Stiffness to Weight: Axial, points 7.0
6.5
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 7.5
5.6
Strength to Weight: Bending, points 9.9
8.0
Thermal Shock Resistance, points 7.6
7.4

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Copper (Cu), % 65 to 70
79.2 to 80.7
Iron (Fe), % 0 to 0.7
0
Lead (Pb), % 1.5 to 3.8
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0
4.8 to 5.2
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
14.5 to 15.5
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 24 to 32
0
Residuals, % 0
0 to 0.15