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CC751S Brass vs. C77400 Nickel Silver

Both CC751S brass and C77400 nickel silver are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 77% 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 CC751S 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, % 5.6
25
Poisson's Ratio 0.31
0.3
Shear Modulus, GPa 40
42
Tensile Strength: Ultimate (UTS), MPa 450
570
Tensile Strength: Yield (Proof), MPa 320
250

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 850
810
Melting Onset (Solidus), °C 810
770
Specific Heat Capacity, J/kg-K 390
390
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 28
31

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 2.8
3.5
Embodied Energy, MJ/kg 46
57
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
120
Resilience: Unit (Modulus of Resilience), kJ/m3 480
290
Stiffness to Weight: Axial, points 7.2
7.7
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 15
20
Strength to Weight: Bending, points 16
19
Thermal Shock Resistance, points 15
18

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 62.7 to 66
43 to 47
Iron (Fe), % 0.25 to 0.5
0
Lead (Pb), % 0.8 to 2.2
0 to 0.2
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.8
9.0 to 11
Silicon (Si), % 0.65 to 1.1
0
Tin (Sn), % 0 to 0.8
0
Zinc (Zn), % 27.9 to 35.6
41.3 to 48
Residuals, % 0
0 to 0.5