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C81500 Copper vs. C85400 Brass

Both C81500 copper and C85400 brass are copper alloys. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is C81500 copper and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
55
Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 17
23
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 350
220
Tensile Strength: Yield (Proof), MPa 280
85

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1090
940
Melting Onset (Solidus), °C 1080
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 320
89
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
20
Electrical Conductivity: Equal Weight (Specific), % IACS 83
22

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
40
Resilience: Unit (Modulus of Resilience), kJ/m3 330
35
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
7.5
Strength to Weight: Bending, points 12
9.9
Thermal Diffusivity, mm2/s 91
28
Thermal Shock Resistance, points 12
7.6

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.35
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
65 to 70
Iron (Fe), % 0 to 0.1
0 to 0.7
Lead (Pb), % 0 to 0.020
1.5 to 3.8
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0 to 0.15
0 to 0.050
Tin (Sn), % 0 to 0.1
0.5 to 1.5
Zinc (Zn), % 0 to 0.1
24 to 32
Residuals, % 0 to 0.5
0 to 1.1