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C71640 Copper-nickel vs. C42200 Brass

Both C71640 copper-nickel and C42200 brass are copper alloys. They have 66% 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 C71640 copper-nickel and the bottom bar is C42200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 52
42
Tensile Strength: Ultimate (UTS), MPa 490 to 630
300 to 610
Tensile Strength: Yield (Proof), MPa 190 to 460
100 to 570

Thermal Properties

Latent Heat of Fusion, J/g 240
200
Maximum Temperature: Mechanical, °C 260
170
Melting Completion (Liquidus), °C 1180
1040
Melting Onset (Solidus), °C 1120
1020
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 29
130
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
31
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
32

Otherwise Unclassified Properties

Base Metal Price, % relative 40
29
Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 5.0
2.7
Embodied Energy, MJ/kg 73
44
Embodied Water, L/kg 280
320

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 750
49 to 1460
Stiffness to Weight: Axial, points 8.7
7.2
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 20
9.5 to 19
Strength to Weight: Bending, points 16 to 18
11 to 18
Thermal Diffusivity, mm2/s 8.2
39
Thermal Shock Resistance, points 16 to 21
10 to 21

Alloy Composition


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Copper (Cu), % 61.7 to 67.8
86 to 89
Iron (Fe), % 1.7 to 2.3
0 to 0.050
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 1.5 to 2.5
0
Nickel (Ni), % 29 to 32
0
Phosphorus (P), % 0
0 to 0.35
Tin (Sn), % 0
0.8 to 1.4
Zinc (Zn), % 0 to 1.0
8.7 to 13.2
Residuals, % 0 to 0.5
0 to 0.5