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C82400 Copper vs. C87400 Brass

Both C82400 copper and C87400 brass are copper alloys. They have 83% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C82400 copper and the bottom bar is C87400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.0 to 20
21
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
41
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
390
Tensile Strength: Yield (Proof), MPa 260 to 970
160

Thermal Properties

Latent Heat of Fusion, J/g 230
250
Maximum Temperature: Mechanical, °C 270
170
Melting Completion (Liquidus), °C 1000
920
Melting Onset (Solidus), °C 900
820
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 130
28
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 26
7.2

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 8.9
2.7
Embodied Energy, MJ/kg 140
44
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 83
65
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
120
Stiffness to Weight: Axial, points 7.6
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16 to 33
13
Strength to Weight: Bending, points 16 to 26
14
Thermal Diffusivity, mm2/s 39
8.3
Thermal Shock Resistance, points 17 to 36
14

Alloy Composition

Aluminum (Al), % 0 to 0.15
0 to 0.8
Beryllium (Be), % 1.6 to 1.9
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 0.2 to 0.65
0
Copper (Cu), % 96 to 98.2
79 to 85.5
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.020
0 to 1.0
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0
2.5 to 4.0
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0
Zinc (Zn), % 0 to 0.1
12 to 16
Residuals, % 0
0 to 0.8