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C27400 Brass vs. C74500 Nickel Silver

Both C27400 brass and C74500 nickel silver are copper alloys. They have 87% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C27400 brass and the bottom bar is C74500 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.32
Rockwell B Hardness 53 to 91
66 to 94
Rockwell Superficial 30T Hardness 52 to 78
60 to 79
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 370 to 650
390 to 700

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 920
1020
Melting Onset (Solidus), °C 870
970
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
45
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 31
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 45
54
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.7
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 13 to 23
13 to 23
Strength to Weight: Bending, points 14 to 21
14 to 21
Thermal Diffusivity, mm2/s 37
14
Thermal Shock Resistance, points 12 to 22
13 to 23

Alloy Composition

Copper (Cu), % 61 to 64
63.5 to 66.5
Iron (Fe), % 0 to 0.1
0 to 0.25
Lead (Pb), % 0 to 0.050
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
9.0 to 11
Zinc (Zn), % 35.6 to 39
21.2 to 27.5
Residuals, % 0
0 to 0.5

Comparable Variants