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C97400 Nickel Silver vs. CC767S Brass

Both C97400 nickel silver and CC767S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is C97400 nickel silver and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
86
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 20
34
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 260
430
Tensile Strength: Yield (Proof), MPa 120
150

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 1100
840
Melting Onset (Solidus), °C 1070
790
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 27
110
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.0
32
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
36

Otherwise Unclassified Properties

Base Metal Price, % relative 33
23
Density, g/cm3 8.6
8.0
Embodied Carbon, kg CO2/kg material 4.1
2.7
Embodied Energy, MJ/kg 64
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43
110
Resilience: Unit (Modulus of Resilience), kJ/m3 59
100
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 8.5
15
Strength to Weight: Bending, points 11
16
Thermal Diffusivity, mm2/s 8.3
34
Thermal Shock Resistance, points 8.8
14

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.8
Copper (Cu), % 58 to 61
58 to 64
Iron (Fe), % 0 to 1.5
0 to 0.5
Lead (Pb), % 4.5 to 5.5
0 to 0.1
Manganese (Mn), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 15.5 to 17
0 to 1.0
Silicon (Si), % 0
0 to 0.2
Tin (Sn), % 2.5 to 3.5
0 to 0.1
Zinc (Zn), % 10 to 19.5
32.8 to 41.9
Residuals, % 0 to 1.0
0