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C77100 Nickel Silver vs. C68700 Brass

Both C77100 nickel silver and C68700 brass are copper alloys. They have 74% of their average alloy composition in common.

For each property being compared, the top bar is C77100 nickel silver and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 45
41
Tensile Strength: Ultimate (UTS), MPa 600
390
Tensile Strength: Yield (Proof), MPa 540
140

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 150
160
Melting Completion (Liquidus), °C 990
970
Melting Onset (Solidus), °C 950
930
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 40
100
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
23
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
25

Otherwise Unclassified Properties

Base Metal Price, % relative 27
26
Density, g/cm3 8.1
8.3
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 56
46
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 1280
90
Stiffness to Weight: Axial, points 7.8
7.3
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 21
13
Strength to Weight: Bending, points 20
14
Thermal Diffusivity, mm2/s 13
30
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 52 to 56
76 to 79
Iron (Fe), % 0
0 to 0.060
Lead (Pb), % 0 to 0.030
0 to 0.070
Manganese (Mn), % 0 to 0.9
0
Nickel (Ni), % 9.0 to 12
0
Zinc (Zn), % 30.6 to 39
17.8 to 22.2
Residuals, % 0
0 to 0.5