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C81500 Copper vs. C32000 Brass

Both C81500 copper and C32000 brass 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 C81500 copper and the bottom bar is C32000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 17
6.8 to 29
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
41
Tensile Strength: Ultimate (UTS), MPa 350
270 to 470
Tensile Strength: Yield (Proof), MPa 280
78 to 390

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1090
1020
Melting Onset (Solidus), °C 1080
990
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 320
160
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 82
36
Electrical Conductivity: Equal Weight (Specific), % IACS 83
37

Otherwise Unclassified Properties

Base Metal Price, % relative 31
28
Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 41
42
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
30 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 330
28 to 680
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 11
8.8 to 15
Strength to Weight: Bending, points 12
11 to 16
Thermal Diffusivity, mm2/s 91
47
Thermal Shock Resistance, points 12
9.5 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Chromium (Cr), % 0.4 to 1.5
0
Copper (Cu), % 97.4 to 99.6
83.5 to 86.5
Iron (Fe), % 0 to 0.1
0 to 0.1
Lead (Pb), % 0 to 0.020
1.5 to 2.2
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
10.6 to 15
Residuals, % 0 to 0.5
0 to 0.4