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C27000 Brass vs. C81400 Copper

Both C27000 brass and C81400 copper 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 (5, in this case) are not shown.

For each property being compared, the top bar is C27000 brass and the bottom bar is C81400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 53 to 91
69
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 370 to 650
370

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 930
1090
Melting Onset (Solidus), °C 900
1070
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
260
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
60
Electrical Conductivity: Equal Weight (Specific), % IACS 30
61

Otherwise Unclassified Properties

Base Metal Price, % relative 24
33
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 45
45
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13 to 22
11
Strength to Weight: Bending, points 14 to 21
13
Thermal Diffusivity, mm2/s 37
75
Thermal Shock Resistance, points 12 to 22
13

Alloy Composition

Beryllium (Be), % 0
0.020 to 0.1
Chromium (Cr), % 0
0.6 to 1.0
Copper (Cu), % 63 to 68.5
98.4 to 99.38
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.070
0
Zinc (Zn), % 31 to 37
0
Residuals, % 0
0 to 0.5