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C72200 Copper-nickel vs. C87800 Brass

Both C72200 copper-nickel and C87800 brass are copper alloys. They have 82% of their average alloy composition in common. There are 25 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 C72200 copper-nickel and the bottom bar is C87800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Poisson's Ratio 0.33
0.33
Rockwell B Hardness 71 to 86
86
Shear Modulus, GPa 48
42
Tensile Strength: Ultimate (UTS), MPa 350 to 580
590

Thermal Properties

Latent Heat of Fusion, J/g 220
260
Maximum Temperature: Mechanical, °C 230
170
Melting Completion (Liquidus), °C 1180
920
Melting Onset (Solidus), °C 1120
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 34
28
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.5
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
27
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 3.9
2.7
Embodied Energy, MJ/kg 59
44
Embodied Water, L/kg 300
300

Common Calculations

Stiffness to Weight: Axial, points 8.0
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 18
20
Strength to Weight: Bending, points 12 to 17
19
Thermal Diffusivity, mm2/s 9.6
8.3
Thermal Shock Resistance, points 12 to 20
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Chromium (Cr), % 0.3 to 0.7
0
Copper (Cu), % 78.1 to 84.2
80 to 84.2
Iron (Fe), % 0.5 to 1.0
0 to 0.15
Lead (Pb), % 0 to 0.050
0 to 0.15
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0 to 1.0
0 to 0.15
Nickel (Ni), % 15 to 18
0 to 0.2
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
3.8 to 4.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0 to 1.0
12 to 16
Residuals, % 0
0 to 0.5