MakeItFrom.com
Menu (ESC)

C68000 Brass vs. C55280 Copper

Both C68000 brass and C55280 copper 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 C68000 brass and the bottom bar is C55280 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 390
180

Thermal Properties

Brazing Temperature, °C 880 to 980
730 to 820
Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 880
790
Melting Onset (Solidus), °C 870
640
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 21
16

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 2.8
4.2
Embodied Energy, MJ/kg 48
67

Common Calculations

Stiffness to Weight: Axial, points 7.3
6.9
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 14
5.9
Strength to Weight: Bending, points 15
8.3
Thermal Shock Resistance, points 13
7.4

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Copper (Cu), % 56 to 60
90.5 to 91.4
Iron (Fe), % 0.25 to 1.3
0
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.010 to 0.5
0
Nickel (Ni), % 0.2 to 0.8
0
Phosphorus (P), % 0
6.8 to 7.2
Silicon (Si), % 0.040 to 0.15
0
Silver (Ag), % 0
1.8 to 2.2
Tin (Sn), % 0.75 to 1.1
0
Zinc (Zn), % 35.6 to 42.8
0
Residuals, % 0
0 to 0.15