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C18200 Copper vs. C27000 Brass

Both C18200 copper and C27000 brass are copper alloys. They have 66% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C18200 copper and the bottom bar is C27000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.31
Rockwell B Hardness 65 to 82
53 to 91
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 310 to 530
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1080
930
Melting Onset (Solidus), °C 1070
900
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 320
120
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
27
Electrical Conductivity: Equal Weight (Specific), % IACS 81
30

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.6 to 16
13 to 22
Strength to Weight: Bending, points 11 to 16
14 to 21
Thermal Diffusivity, mm2/s 93
37
Thermal Shock Resistance, points 11 to 18
12 to 22

Alloy Composition

Chromium (Cr), % 0.6 to 1.2
0
Copper (Cu), % 98.6 to 99.4
63 to 68.5
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.050
0 to 0.070
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0
31 to 37
Residuals, % 0
0 to 0.3