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C82400 Copper vs. C69400 Brass

Both C82400 copper and C69400 brass 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 (2, in this case) are not shown.

For each property being compared, the top bar is C82400 copper and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.0 to 20
17
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
42
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
570
Tensile Strength: Yield (Proof), MPa 260 to 970
270

Thermal Properties

Latent Heat of Fusion, J/g 230
260
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
410
Thermal Conductivity, W/m-K 130
26
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 26
6.7

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
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 83
80
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
340
Stiffness to Weight: Axial, points 7.6
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16 to 33
19
Strength to Weight: Bending, points 16 to 26
18
Thermal Diffusivity, mm2/s 39
7.7
Thermal Shock Resistance, points 17 to 36
20

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
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
80 to 83
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 0 to 0.020
0 to 0.3
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0
3.5 to 4.5
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0
Zinc (Zn), % 0 to 0.1
11.5 to 16.5
Residuals, % 0
0 to 0.5