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C27400 Brass vs. C74400 Nickel Silver

Both C27400 brass and C74400 nickel silver are copper alloys. They have a very high 96% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C27400 brass and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 370 to 650
350

Thermal Properties

Latent Heat of Fusion, J/g 170
180
Maximum Temperature: Mechanical, °C 120
140
Melting Completion (Liquidus), °C 920
930
Melting Onset (Solidus), °C 870
910
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
26
Electrical Conductivity: Equal Weight (Specific), % IACS 31
29

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.0
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 45
48
Embodied Water, L/kg 320
320

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 13 to 23
12
Strength to Weight: Bending, points 14 to 21
14
Thermal Diffusivity, mm2/s 37
37
Thermal Shock Resistance, points 12 to 22
12

Alloy Composition

Copper (Cu), % 61 to 64
62 to 66
Iron (Fe), % 0 to 0.1
0 to 0.050
Lead (Pb), % 0 to 0.050
0 to 0.050
Nickel (Ni), % 0
2.0 to 4.0
Zinc (Zn), % 35.6 to 39
29.6 to 36
Residuals, % 0
0 to 0.3