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C82400 Copper vs. C68700 Brass

Both C82400 copper and C68700 brass are copper alloys. They have 78% of their average alloy composition in common. There are 25 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 C82400 copper and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 45
41
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
390
Tensile Strength: Yield (Proof), MPa 260 to 970
140

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 270
160
Melting Completion (Liquidus), °C 1000
970
Melting Onset (Solidus), °C 900
930
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 130
100
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
23
Electrical Conductivity: Equal Weight (Specific), % IACS 26
25

Otherwise Unclassified Properties

Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 8.9
2.8
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
90
Stiffness to Weight: Axial, points 7.6
7.3
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
30
Thermal Shock Resistance, points 17 to 36
13

Alloy Composition

Aluminum (Al), % 0 to 0.15
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
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
76 to 79
Iron (Fe), % 0 to 0.2
0 to 0.060
Lead (Pb), % 0 to 0.020
0 to 0.070
Nickel (Ni), % 0 to 0.2
0
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0
Zinc (Zn), % 0 to 0.1
17.8 to 22.2
Residuals, % 0
0 to 0.5