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C97800 Nickel Silver vs. C87500 Brass

Both C97800 nickel silver and C87500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is C97800 nickel silver and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Elongation at Break, % 10
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 48
42
Tensile Strength: Ultimate (UTS), MPa 370
460
Tensile Strength: Yield (Proof), MPa 170
190

Thermal Properties

Latent Heat of Fusion, J/g 220
260
Maximum Temperature: Mechanical, °C 230
170
Melting Completion (Liquidus), °C 1180
920
Melting Onset (Solidus), °C 1140
820
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 25
28
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.0
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 40
27
Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 5.1
2.7
Embodied Energy, MJ/kg 76
44
Embodied Water, L/kg 330
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
67
Resilience: Unit (Modulus of Resilience), kJ/m3 120
160
Stiffness to Weight: Axial, points 8.1
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12
16
Strength to Weight: Bending, points 13
16
Thermal Diffusivity, mm2/s 7.3
8.3
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.5
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 64 to 67
79 to 85
Iron (Fe), % 0 to 1.5
0
Lead (Pb), % 1.0 to 2.5
0 to 0.5
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.15
3.0 to 5.0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.0 to 5.5
0
Zinc (Zn), % 1.0 to 4.0
12 to 16
Residuals, % 0
0 to 0.5