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C68400 Brass vs. C76200 Nickel Silver

Both C68400 brass and C76200 nickel silver are copper alloys. They have 88% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C76200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 41
44
Tensile Strength: Ultimate (UTS), MPa 540
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 840
1030
Melting Onset (Solidus), °C 820
980
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
45
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
29
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 47
57
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.5
7.8
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
13 to 27
Strength to Weight: Bending, points 19
14 to 23
Thermal Diffusivity, mm2/s 21
14
Thermal Shock Resistance, points 18
13 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
57 to 61
Iron (Fe), % 0 to 1.0
0 to 0.25
Lead (Pb), % 0 to 0.090
0 to 0.1
Manganese (Mn), % 0.2 to 1.5
0 to 0.5
Nickel (Ni), % 0 to 0.5
11 to 13.5
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
24.2 to 32
Residuals, % 0
0 to 0.5