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CC765S Brass vs. C77300 Nickel Silver

Both CC765S brass and C77300 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common. There are 22 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 CC765S brass and the bottom bar is C77300 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 42
42
Tensile Strength: Ultimate (UTS), MPa 540
540

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 140
130
Melting Completion (Liquidus), °C 860
940
Melting Onset (Solidus), °C 820
920
Specific Heat Capacity, J/kg-K 400
390
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 34
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
26
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 3.0
3.5
Embodied Energy, MJ/kg 51
56
Embodied Water, L/kg 330
310

Common Calculations

Stiffness to Weight: Axial, points 7.6
7.7
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 18
19
Thermal Shock Resistance, points 17
17

Alloy Composition


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Aluminum (Al), % 0.5 to 2.5
0 to 0.010
Antimony (Sb), % 0 to 0.080
0
Copper (Cu), % 51 to 65
46 to 50
Iron (Fe), % 0.5 to 2.0
0
Lead (Pb), % 0 to 0.5
0 to 0.050
Manganese (Mn), % 0.3 to 3.0
0
Nickel (Ni), % 0 to 6.0
9.0 to 11
Phosphorus (P), % 0 to 0.030
0 to 0.25
Silicon (Si), % 0 to 0.1
0.040 to 0.25
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19.8 to 47.7
37.9 to 45
Residuals, % 0
0 to 0.5