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C18200 Copper vs. C85400 Brass

Both C18200 copper and C85400 brass are copper alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C18200 copper and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 11 to 40
23
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 310 to 530
220
Tensile Strength: Yield (Proof), MPa 97 to 450
85

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1080
940
Melting Onset (Solidus), °C 1070
940
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 320
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
20
Electrical Conductivity: Equal Weight (Specific), % IACS 81
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 43 to 96
40
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
35
Stiffness to Weight: Axial, points 7.3
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.6 to 16
7.5
Strength to Weight: Bending, points 11 to 16
9.9
Thermal Diffusivity, mm2/s 93
28
Thermal Shock Resistance, points 11 to 18
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Chromium (Cr), % 0.6 to 1.2
0
Copper (Cu), % 98.6 to 99.4
65 to 70
Iron (Fe), % 0 to 0.1
0 to 0.7
Lead (Pb), % 0 to 0.050
1.5 to 3.8
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0 to 0.1
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0
24 to 32
Residuals, % 0
0 to 1.1