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C34000 Brass vs. C81500 Copper

Both C34000 brass and C81500 copper are copper alloys. They have 64% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C34000 brass and the bottom bar is C81500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 340 to 650
350

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 930
1090
Melting Onset (Solidus), °C 890
1080
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
320
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
82
Electrical Conductivity: Equal Weight (Specific), % IACS 29
83

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 11 to 22
11
Strength to Weight: Bending, points 13 to 21
12
Thermal Diffusivity, mm2/s 37
91
Thermal Shock Resistance, points 11 to 22
12

Alloy Composition


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Aluminum (Al), % 0
0 to 0.1
Chromium (Cr), % 0
0.4 to 1.5
Copper (Cu), % 62 to 65
97.4 to 99.6
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0.8 to 1.5
0 to 0.020
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 33 to 37.2
0 to 0.1
Residuals, % 0 to 0.4
0 to 0.5