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C18200 Copper vs. C87500 Brass

Both C18200 copper and C87500 brass are copper alloys. They have 82% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C18200 copper and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 11 to 40
18
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
42
Tensile Strength: Ultimate (UTS), MPa 310 to 530
460
Tensile Strength: Yield (Proof), MPa 97 to 450
190

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1080
920
Melting Onset (Solidus), °C 1070
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 320
28
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 81
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
27
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
44
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 96
67
Resilience: Unit (Modulus of Resilience), kJ/m3 40 to 860
160
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.6 to 16
16
Strength to Weight: Bending, points 11 to 16
16
Thermal Diffusivity, mm2/s 93
8.3
Thermal Shock Resistance, points 11 to 18
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Chromium (Cr), % 0.6 to 1.2
0
Copper (Cu), % 98.6 to 99.4
79 to 85
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.050
0 to 0.5
Silicon (Si), % 0 to 0.1
3.0 to 5.0
Zinc (Zn), % 0
12 to 16
Residuals, % 0
0 to 0.5