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C21000 Brass vs. C75200 Nickel Silver

Both C21000 brass and C75200 nickel silver are copper alloys. They have 70% 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 C21000 brass and the bottom bar is C75200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.32
Rockwell B Hardness 36 to 73
63 to 93
Rockwell Superficial 30T Hardness 44 to 68
58 to 78
Shear Modulus, GPa 43
47
Tensile Strength: Ultimate (UTS), MPa 240 to 450
400 to 660

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 1070
1110
Melting Onset (Solidus), °C 1050
1070
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 230
33
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 57
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
33
Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 2.6
4.1
Embodied Energy, MJ/kg 42
62
Embodied Water, L/kg 310
300

Common Calculations

Stiffness to Weight: Axial, points 7.2
8.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.4 to 14
13 to 21
Strength to Weight: Bending, points 9.6 to 15
14 to 20
Thermal Diffusivity, mm2/s 69
9.8
Thermal Shock Resistance, points 8.1 to 15
13 to 22

Alloy Composition

Copper (Cu), % 94 to 96
63.5 to 66.5
Iron (Fe), % 0 to 0.050
0 to 0.25
Lead (Pb), % 0 to 0.030
0 to 0.050
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
16.5 to 19.5
Zinc (Zn), % 3.7 to 6.0
12.7 to 20
Residuals, % 0
0 to 0.5

Comparable Variants