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C69400 Brass vs. C82700 Copper

Both C69400 brass and C82700 copper are copper alloys. They have 82% 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 C69400 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, % 17
1.8
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
46
Tensile Strength: Ultimate (UTS), MPa 570
1200
Tensile Strength: Yield (Proof), MPa 270
1020

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Maximum Temperature: Mechanical, °C 170
300
Melting Completion (Liquidus), °C 920
950
Melting Onset (Solidus), °C 820
860
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 26
130
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
20
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
21

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 2.7
12
Embodied Energy, MJ/kg 44
180
Embodied Water, L/kg 300
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
21
Resilience: Unit (Modulus of Resilience), kJ/m3 340
4260
Stiffness to Weight: Axial, points 7.4
7.8
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19
38
Strength to Weight: Bending, points 18
29
Thermal Diffusivity, mm2/s 7.7
39
Thermal Shock Resistance, points 20
41

Alloy Composition


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Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Chromium (Cr), % 0
0 to 0.090
Copper (Cu), % 80 to 83
94.6 to 96.7
Iron (Fe), % 0 to 0.2
0 to 0.25
Lead (Pb), % 0 to 0.3
0 to 0.020
Nickel (Ni), % 0
1.0 to 1.5
Silicon (Si), % 3.5 to 4.5
0 to 0.15
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 11.5 to 16.5
0 to 0.1
Residuals, % 0 to 0.5
0 to 0.5