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C82700 Copper vs. CC761S Brass

Both C82700 copper and CC761S brass are copper alloys. They have 81% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C82700 copper and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.8
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 46
42
Tensile Strength: Ultimate (UTS), MPa 1200
540
Tensile Strength: Yield (Proof), MPa 1020
340

Thermal Properties

Latent Heat of Fusion, J/g 240
260
Maximum Temperature: Mechanical, °C 300
170
Melting Completion (Liquidus), °C 950
960
Melting Onset (Solidus), °C 860
910
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 130
27
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
40
Electrical Conductivity: Equal Weight (Specific), % IACS 21
43

Otherwise Unclassified Properties

Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 12
2.7
Embodied Energy, MJ/kg 180
45
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
41
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
530
Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 38
18
Strength to Weight: Bending, points 29
18
Thermal Diffusivity, mm2/s 39
8.0
Thermal Shock Resistance, points 41
19

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Beryllium (Be), % 2.4 to 2.6
0
Chromium (Cr), % 0 to 0.090
0
Copper (Cu), % 94.6 to 96.7
78 to 83
Iron (Fe), % 0 to 0.25
0 to 0.6
Lead (Pb), % 0 to 0.020
0 to 0.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 1.0 to 1.5
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.15
3.0 to 5.0
Tin (Sn), % 0 to 0.1
0 to 0.3
Zinc (Zn), % 0 to 0.1
8.9 to 19
Residuals, % 0 to 0.5
0