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C55284 Copper vs. C68000 Brass

Both C55284 copper and C68000 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 58% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C55284 copper and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 38
40
Tensile Strength: Ultimate (UTS), MPa 180
390

Thermal Properties

Brazing Temperature, °C 700 to 820
880 to 980
Latent Heat of Fusion, J/g 180
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 800
880
Melting Onset (Solidus), °C 640
870
Specific Heat Capacity, J/kg-K 380
390
Thermal Expansion, µm/m-K 17
21

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 16
2.8
Embodied Energy, MJ/kg 260
48

Common Calculations

Stiffness to Weight: Axial, points 6.5
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 5.6
14
Strength to Weight: Bending, points 8.0
15
Thermal Shock Resistance, points 7.4
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Copper (Cu), % 79.2 to 80.7
56 to 60
Iron (Fe), % 0
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0.010 to 0.5
Nickel (Ni), % 0
0.2 to 0.8
Phosphorus (P), % 4.8 to 5.2
0
Silicon (Si), % 0
0.040 to 0.15
Silver (Ag), % 14.5 to 15.5
0
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 0
35.6 to 42.8
Residuals, % 0 to 0.15
0 to 0.5