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C55283 Copper vs. C55280 Copper

Both C55283 copper and C55280 copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is C55283 copper and the bottom bar is C55280 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 190
180

Thermal Properties

Brazing Temperature, °C 690 to 790
730 to 820
Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 720
790
Melting Onset (Solidus), °C 640
640
Specific Heat Capacity, J/kg-K 400
410
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.5
Embodied Carbon, kg CO2/kg material 7.9
4.2
Embodied Energy, MJ/kg 120
67

Common Calculations

Stiffness to Weight: Axial, points 6.8
6.9
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.1
5.9
Strength to Weight: Bending, points 8.5
8.3
Thermal Shock Resistance, points 8.0
7.4

Alloy Composition

Copper (Cu), % 86.2 to 87.2
90.5 to 91.4
Phosphorus (P), % 7.0 to 7.5
6.8 to 7.2
Silver (Ag), % 5.8 to 6.2
1.8 to 2.2
Residuals, % 0
0 to 0.15