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C71520 Copper-nickel vs. C87500 Brass

Both C71520 copper-nickel and C87500 brass are copper alloys. They have 69% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C71520 copper-nickel and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 10 to 45
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 51
42
Tensile Strength: Ultimate (UTS), MPa 370 to 570
460
Tensile Strength: Yield (Proof), MPa 140 to 430
190

Thermal Properties

Latent Heat of Fusion, J/g 230
260
Maximum Temperature: Mechanical, °C 260
170
Melting Completion (Liquidus), °C 1170
920
Melting Onset (Solidus), °C 1120
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 32
28
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.7
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 5.8
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 40
27
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 5.0
2.7
Embodied Energy, MJ/kg 73
44
Embodied Water, L/kg 280
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 130
67
Resilience: Unit (Modulus of Resilience), kJ/m3 67 to 680
160
Stiffness to Weight: Axial, points 8.6
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 12 to 18
16
Strength to Weight: Bending, points 13 to 17
16
Thermal Diffusivity, mm2/s 8.9
8.3
Thermal Shock Resistance, points 12 to 19
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 65 to 71.6
79 to 85
Iron (Fe), % 0.4 to 1.0
0
Lead (Pb), % 0 to 0.020
0 to 0.5
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 28 to 33
0
Phosphorus (P), % 0 to 0.2
0
Silicon (Si), % 0
3.0 to 5.0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0 to 0.5
12 to 16
Residuals, % 0
0 to 0.5