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C71580 Copper-nickel vs. C68800 Brass

Both C71580 copper-nickel and C68800 brass are copper alloys. They have 69% of their average alloy composition in common. There are 29 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 C71580 copper-nickel and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 40
2.0 to 36
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 51
41
Shear Strength, MPa 230
380 to 510
Tensile Strength: Ultimate (UTS), MPa 330
570 to 890
Tensile Strength: Yield (Proof), MPa 110
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 260
160
Melting Completion (Liquidus), °C 1180
960
Melting Onset (Solidus), °C 1120
950
Specific Heat Capacity, J/kg-K 400
400
Thermal Conductivity, W/m-K 39
40
Thermal Expansion, µm/m-K 15
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
18
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
20

Otherwise Unclassified Properties

Base Metal Price, % relative 41
26
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 5.1
2.8
Embodied Energy, MJ/kg 74
48
Embodied Water, L/kg 280
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
16 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 47
710 to 2860
Stiffness to Weight: Axial, points 8.5
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10
19 to 30
Strength to Weight: Bending, points 12
19 to 25
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 11
19 to 30

Alloy Composition

Aluminum (Al), % 0
3.0 to 3.8
Carbon (C), % 0 to 0.070
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 65.5 to 71
70.8 to 75.5
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 29 to 33
0
Zinc (Zn), % 0 to 0.050
21.3 to 24.1
Residuals, % 0
0 to 0.5