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C68800 Brass vs. C82700 Copper

Both C68800 brass and C82700 copper are copper alloys. They have 74% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C68800 brass and the bottom bar is C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 2.0 to 36
1.8
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
46
Tensile Strength: Ultimate (UTS), MPa 570 to 890
1200
Tensile Strength: Yield (Proof), MPa 390 to 790
1020

Thermal Properties

Latent Heat of Fusion, J/g 190
240
Maximum Temperature: Mechanical, °C 160
300
Melting Completion (Liquidus), °C 960
950
Melting Onset (Solidus), °C 950
860
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 40
130
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
20
Electrical Conductivity: Equal Weight (Specific), % IACS 20
21

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.7
Embodied Carbon, kg CO2/kg material 2.8
12
Embodied Energy, MJ/kg 48
180
Embodied Water, L/kg 350
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 180
21
Resilience: Unit (Modulus of Resilience), kJ/m3 710 to 2860
4260
Stiffness to Weight: Axial, points 7.3
7.8
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 30
38
Strength to Weight: Bending, points 19 to 25
29
Thermal Diffusivity, mm2/s 12
39
Thermal Shock Resistance, points 19 to 30
41

Alloy Composition


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Aluminum (Al), % 3.0 to 3.8
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Chromium (Cr), % 0
0 to 0.090
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
94.6 to 96.7
Iron (Fe), % 0 to 0.2
0 to 0.25
Lead (Pb), % 0 to 0.050
0 to 0.020
Nickel (Ni), % 0
1.0 to 1.5
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 21.3 to 24.1
0 to 0.1
Residuals, % 0 to 0.5
0 to 0.5