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C32000 Brass vs. C81400 Copper

Both C32000 brass and C81400 copper are copper alloys. They have 85% 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 C32000 brass and the bottom bar is C81400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8 to 29
11
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 41
41
Tensile Strength: Ultimate (UTS), MPa 270 to 470
370
Tensile Strength: Yield (Proof), MPa 78 to 390
250

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1020
1090
Melting Onset (Solidus), °C 990
1070
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 160
260
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
60
Electrical Conductivity: Equal Weight (Specific), % IACS 37
61

Otherwise Unclassified Properties

Base Metal Price, % relative 28
33
Density, g/cm3 8.7
8.9
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 59
36
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 680
260
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.8 to 15
11
Strength to Weight: Bending, points 11 to 16
13
Thermal Diffusivity, mm2/s 47
75
Thermal Shock Resistance, points 9.5 to 16
13

Alloy Composition

Beryllium (Be), % 0
0.020 to 0.1
Chromium (Cr), % 0
0.6 to 1.0
Copper (Cu), % 83.5 to 86.5
98.4 to 99.38
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 1.5 to 2.2
0
Nickel (Ni), % 0 to 0.25
0
Zinc (Zn), % 10.6 to 15
0
Residuals, % 0
0 to 0.5