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C68400 Brass vs. C77400 Nickel Silver

Both C68400 brass and C77400 nickel silver are copper alloys. They have 79% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 18
25
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 41
42
Shear Strength, MPa 330
360
Tensile Strength: Ultimate (UTS), MPa 540
570
Tensile Strength: Yield (Proof), MPa 310
250

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 840
810
Melting Onset (Solidus), °C 820
770
Specific Heat Capacity, J/kg-K 400
390
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
27
Electrical Conductivity: Equal Weight (Specific), % IACS 99
31

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.7
3.5
Embodied Energy, MJ/kg 47
57
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
120
Resilience: Unit (Modulus of Resilience), kJ/m3 460
290
Stiffness to Weight: Axial, points 7.5
7.7
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
19
Thermal Shock Resistance, points 18
18

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
43 to 47
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0 to 0.090
0 to 0.2
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
9.0 to 11
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
41.3 to 48
Residuals, % 0 to 0.5
0 to 0.5