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C85400 Brass vs. C97400 Nickel Silver

Both C85400 brass and C97400 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is C85400 brass and the bottom bar is C97400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
70
Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 23
20
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 220
260
Tensile Strength: Yield (Proof), MPa 85
120

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 940
1100
Melting Onset (Solidus), °C 940
1070
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 89
27
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 22
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
33
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 2.8
4.1
Embodied Energy, MJ/kg 46
64
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
43
Resilience: Unit (Modulus of Resilience), kJ/m3 35
59
Stiffness to Weight: Axial, points 7.0
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 7.5
8.5
Strength to Weight: Bending, points 9.9
11
Thermal Diffusivity, mm2/s 28
8.3
Thermal Shock Resistance, points 7.6
8.8

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Copper (Cu), % 65 to 70
58 to 61
Iron (Fe), % 0 to 0.7
0 to 1.5
Lead (Pb), % 1.5 to 3.8
4.5 to 5.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 1.0
15.5 to 17
Silicon (Si), % 0 to 0.050
0
Tin (Sn), % 0.5 to 1.5
2.5 to 3.5
Zinc (Zn), % 24 to 32
10 to 19.5
Residuals, % 0
0 to 1.0