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C68100 Brass vs. C77400 Nickel Silver

Both C68100 brass and C77400 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C68100 brass and the bottom bar is C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 29
25
Poisson's Ratio 0.3
0.3
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 380
570
Tensile Strength: Yield (Proof), MPa 140
250

Thermal Properties

Latent Heat of Fusion, J/g 170
170
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 890
810
Melting Onset (Solidus), °C 870
770
Specific Heat Capacity, J/kg-K 390
390
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
27
Electrical Conductivity: Equal Weight (Specific), % IACS 27
31

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 47
57
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
120
Resilience: Unit (Modulus of Resilience), kJ/m3 94
290
Stiffness to Weight: Axial, points 7.3
7.7
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
20
Strength to Weight: Bending, points 15
19
Thermal Shock Resistance, points 13
18

Alloy Composition


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Aluminum (Al), % 0 to 0.010
0
Copper (Cu), % 56 to 60
43 to 47
Iron (Fe), % 0.25 to 1.3
0
Lead (Pb), % 0 to 0.050
0 to 0.2
Manganese (Mn), % 0.010 to 0.5
0
Nickel (Ni), % 0
9.0 to 11
Silicon (Si), % 0.040 to 0.15
0
Tin (Sn), % 0.75 to 1.1
0
Zinc (Zn), % 36.4 to 43
41.3 to 48
Residuals, % 0 to 0.5
0 to 0.5