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CC761S Brass vs. C72500 Copper-nickel

Both CC761S brass and C72500 copper-nickel are copper alloys. They have 82% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is CC761S brass and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
45
Tensile Strength: Ultimate (UTS), MPa 540
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 960
1130
Melting Onset (Solidus), °C 910
1060
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 27
54
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
11
Electrical Conductivity: Equal Weight (Specific), % IACS 43
11

Otherwise Unclassified Properties

Base Metal Price, % relative 27
35
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 45
55
Embodied Water, L/kg 300
320

Common Calculations

Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18
13 to 24
Strength to Weight: Bending, points 18
14 to 21
Thermal Diffusivity, mm2/s 8.0
16
Thermal Shock Resistance, points 19
14 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.050
0
Copper (Cu), % 78 to 83
85.2 to 89.7
Iron (Fe), % 0 to 0.6
0 to 0.6
Lead (Pb), % 0 to 0.8
0 to 0.050
Manganese (Mn), % 0 to 0.2
0 to 0.2
Nickel (Ni), % 0 to 1.0
8.5 to 10.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 3.0 to 5.0
0
Tin (Sn), % 0 to 0.3
1.8 to 2.8
Zinc (Zn), % 8.9 to 19
0 to 0.5
Residuals, % 0
0 to 0.2