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C27400 Brass vs. C77400 Nickel Silver

Both C27400 brass and C77400 nickel silver are copper alloys. They have 82% of their average alloy composition in common. There are 23 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 C27400 brass and the bottom bar is C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.31
0.3
Rockwell B Hardness 53 to 91
73
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 370 to 650
570

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 920
810
Melting Onset (Solidus), °C 870
770
Specific Heat Capacity, J/kg-K 390
390
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
27
Electrical Conductivity: Equal Weight (Specific), % IACS 31
31

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 45
57
Embodied Water, L/kg 320
320

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.7
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13 to 23
20
Strength to Weight: Bending, points 14 to 21
19
Thermal Shock Resistance, points 12 to 22
18

Alloy Composition

Copper (Cu), % 61 to 64
43 to 47
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.050
0 to 0.2
Nickel (Ni), % 0
9.0 to 11
Zinc (Zn), % 35.6 to 39
41.3 to 48
Residuals, % 0
0 to 0.5