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C85400 Brass vs. C55180 Copper

Both C85400 brass and C55180 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 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C85400 brass and the bottom bar is C55180 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 23
20
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 220
200
Tensile Strength: Yield (Proof), MPa 85
100

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 940
920
Melting Onset (Solidus), °C 940
710
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 89
200
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
29
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.8
2.5
Embodied Energy, MJ/kg 46
39
Embodied Water, L/kg 330
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
34
Resilience: Unit (Modulus of Resilience), kJ/m3 35
48
Stiffness to Weight: Axial, points 7.0
7.1
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 7.5
6.4
Strength to Weight: Bending, points 9.9
8.8
Thermal Diffusivity, mm2/s 28
56
Thermal Shock Resistance, points 7.6
7.9

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Copper (Cu), % 65 to 70
94.7 to 95.2
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
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 24 to 32
0
Residuals, % 0
0 to 0.15