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C71000 Copper-nickel vs. C87800 Brass

Both C71000 copper-nickel and C87800 brass are copper alloys. They have 78% 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 C71000 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 59 to 85
86
Shear Modulus, GPa 49
42
Tensile Strength: Ultimate (UTS), MPa 320 to 560
590

Thermal Properties

Latent Heat of Fusion, J/g 230
260
Maximum Temperature: Mechanical, °C 240
170
Melting Completion (Liquidus), °C 1200
920
Melting Onset (Solidus), °C 1150
820
Specific Heat Capacity, J/kg-K 400
410
Thermal Conductivity, W/m-K 43
28
Thermal Expansion, µm/m-K 15
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 37
27
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 4.3
2.7
Embodied Energy, MJ/kg 63
44
Embodied Water, L/kg 290
300

Common Calculations

Stiffness to Weight: Axial, points 8.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10 to 18
20
Strength to Weight: Bending, points 12 to 17
19
Thermal Diffusivity, mm2/s 12
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
Copper (Cu), % 73.5 to 80.5
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), % 19 to 23
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