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C75700 Nickel Silver vs. C69430 Brass

Both C75700 nickel silver and C69430 brass are copper alloys. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is C75700 nickel silver and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 3.2 to 22
17
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 45
42
Shear Strength, MPa 350 to 370
350
Tensile Strength: Ultimate (UTS), MPa 590 to 610
570
Tensile Strength: Yield (Proof), MPa 470 to 580
280

Thermal Properties

Latent Heat of Fusion, J/g 200
260
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 1040
920
Melting Onset (Solidus), °C 990
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
27
Density, g/cm3 8.4
8.3
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 56
44
Embodied Water, L/kg 310
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 120
80
Resilience: Unit (Modulus of Resilience), kJ/m3 930 to 1410
340
Stiffness to Weight: Axial, points 7.8
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 19 to 20
19
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 12
7.7
Thermal Shock Resistance, points 22 to 23
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 63.5 to 66.5
80 to 83
Iron (Fe), % 0 to 0.25
0 to 0.2
Lead (Pb), % 0 to 0.050
0 to 0.3
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 11 to 13
0
Silicon (Si), % 0
3.5 to 4.5
Zinc (Zn), % 19.2 to 25.5
11.4 to 16.5
Residuals, % 0 to 0.5
0 to 0.5