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C66200 Brass vs. C74400 Nickel Silver

Both C66200 brass and C74400 nickel silver are copper alloys. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is C66200 brass and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.0 to 15
43
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
39
Shear Strength, MPa 270 to 300
240
Tensile Strength: Ultimate (UTS), MPa 450 to 520
350
Tensile Strength: Yield (Proof), MPa 410 to 480
120

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Maximum Temperature: Mechanical, °C 180
140
Melting Completion (Liquidus), °C 1070
930
Melting Onset (Solidus), °C 1030
910
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
26
Electrical Conductivity: Equal Weight (Specific), % IACS 36
29

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 43
48
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 66
120
Resilience: Unit (Modulus of Resilience), kJ/m3 760 to 1030
63
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 14 to 17
12
Strength to Weight: Bending, points 15 to 16
14
Thermal Diffusivity, mm2/s 45
37
Thermal Shock Resistance, points 16 to 18
12

Alloy Composition

Copper (Cu), % 86.6 to 91
62 to 66
Iron (Fe), % 0 to 0.050
0 to 0.050
Lead (Pb), % 0 to 0.050
0 to 0.050
Nickel (Ni), % 0.3 to 1.0
2.0 to 4.0
Phosphorus (P), % 0.050 to 0.2
0
Tin (Sn), % 0.2 to 0.7
0
Zinc (Zn), % 6.5 to 12.9
29.6 to 36
Residuals, % 0
0 to 0.3