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C68400 Brass vs. C79200 Nickel Silver

Both C68400 brass and C79200 nickel silver are copper alloys. They have 86% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C79200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
44
Tensile Strength: Ultimate (UTS), MPa 540
480 to 540

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 840
950
Melting Onset (Solidus), °C 820
910
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
42
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
28
Electrical Conductivity: Equal Weight (Specific), % IACS 99
30

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 47
56
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.5
7.7
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
16 to 18
Strength to Weight: Bending, points 19
16 to 18
Thermal Diffusivity, mm2/s 21
13
Thermal Shock Resistance, points 18
16 to 18

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
59 to 66.5
Iron (Fe), % 0 to 1.0
0 to 0.25
Lead (Pb), % 0 to 0.090
0.8 to 1.4
Manganese (Mn), % 0.2 to 1.5
0 to 0.5
Nickel (Ni), % 0 to 0.5
11 to 13
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
17.9 to 29.2
Residuals, % 0 to 0.5
0 to 0.5