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C72150 Copper-nickel vs. C68100 Brass

Both C72150 copper-nickel and C68100 brass are copper alloys. They have 55% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C72150 copper-nickel and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
100
Elongation at Break, % 29
29
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 55
40
Tensile Strength: Ultimate (UTS), MPa 490
380
Tensile Strength: Yield (Proof), MPa 210
140

Thermal Properties

Latent Heat of Fusion, J/g 250
170
Maximum Temperature: Mechanical, °C 600
120
Melting Completion (Liquidus), °C 1210
890
Melting Onset (Solidus), °C 1250
870
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 22
98
Thermal Expansion, µm/m-K 14
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
24
Electrical Conductivity: Equal Weight (Specific), % IACS 3.6
27

Otherwise Unclassified Properties

Base Metal Price, % relative 45
23
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 6.1
2.8
Embodied Energy, MJ/kg 88
47
Embodied Water, L/kg 270
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
86
Resilience: Unit (Modulus of Resilience), kJ/m3 150
94
Stiffness to Weight: Axial, points 9.1
7.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 15
13
Strength to Weight: Bending, points 15
15
Thermal Diffusivity, mm2/s 6.0
32
Thermal Shock Resistance, points 18
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 52.5 to 57
56 to 60
Iron (Fe), % 0 to 0.1
0.25 to 1.3
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.050
0.010 to 0.5
Nickel (Ni), % 43 to 46
0
Silicon (Si), % 0 to 0.5
0.040 to 0.15
Tin (Sn), % 0
0.75 to 1.1
Zinc (Zn), % 0 to 0.2
36.4 to 43
Residuals, % 0 to 0.5
0 to 0.5