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C68400 Brass vs. C82000 Copper

Both C68400 brass and C82000 copper are copper alloys. They have 62% of their average alloy composition in common. There are 28 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 C68400 brass and the bottom bar is C82000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 18
8.0 to 20
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
45
Tensile Strength: Ultimate (UTS), MPa 540
350 to 690
Tensile Strength: Yield (Proof), MPa 310
140 to 520

Thermal Properties

Latent Heat of Fusion, J/g 210
220
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 840
1090
Melting Onset (Solidus), °C 820
970
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
260
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
45
Electrical Conductivity: Equal Weight (Specific), % IACS 99
46

Otherwise Unclassified Properties

Base Metal Price, % relative 23
60
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 2.7
5.0
Embodied Energy, MJ/kg 47
77
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
51 to 55
Resilience: Unit (Modulus of Resilience), kJ/m3 460
80 to 1120
Stiffness to Weight: Axial, points 7.5
7.5
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 19
11 to 22
Strength to Weight: Bending, points 19
12 to 20
Thermal Diffusivity, mm2/s 21
76
Thermal Shock Resistance, points 18
12 to 24

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0 to 0.1
Beryllium (Be), % 0
0.45 to 0.8
Boron (B), % 0.0010 to 0.030
0
Chromium (Cr), % 0
0 to 0.1
Cobalt (Co), % 0
2.2 to 2.7
Copper (Cu), % 59 to 64
95.2 to 97.4
Iron (Fe), % 0 to 1.0
0 to 0.1
Lead (Pb), % 0 to 0.090
0 to 0.020
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
0 to 0.2
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0 to 0.15
Tin (Sn), % 0 to 0.5
0 to 0.1
Zinc (Zn), % 28.6 to 39.3
0 to 0.1
Residuals, % 0 to 0.5
0 to 0.5