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C27000 Brass vs. C78200 Nickel Silver

Both C27000 brass and C78200 nickel silver are copper alloys. They have 90% 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 C27000 brass and the bottom bar is C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.31
0.32
Rockwell B Hardness 53 to 91
65 to 90
Rockwell Superficial 30T Hardness 52 to 78
63 to 75
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 370 to 650
370 to 630

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 930
1000
Melting Onset (Solidus), °C 900
970
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
48
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
11
Electrical Conductivity: Equal Weight (Specific), % IACS 30
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
28
Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 45
52
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 22
12 to 21
Strength to Weight: Bending, points 14 to 21
14 to 19
Thermal Diffusivity, mm2/s 37
15
Thermal Shock Resistance, points 12 to 22
12 to 21

Alloy Composition

Copper (Cu), % 63 to 68.5
63 to 67
Iron (Fe), % 0 to 0.1
0 to 0.35
Lead (Pb), % 0 to 0.070
1.5 to 2.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
7.0 to 9.0
Zinc (Zn), % 31 to 37
20.2 to 28.5
Residuals, % 0
0 to 0.5

Comparable Variants