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C87800 Brass vs. C72500 Copper-nickel

Both C87800 brass and C72500 copper-nickel are copper alloys. They have 83% 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 C87800 brass and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.33
0.34
Rockwell B Hardness 86
75 to 100
Shear Modulus, GPa 42
45
Tensile Strength: Ultimate (UTS), MPa 590
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 920
1130
Melting Onset (Solidus), °C 820
1060
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 28
54
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
11

Otherwise Unclassified Properties

Base Metal Price, % relative 27
35
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 44
55
Embodied Water, L/kg 300
320

Common Calculations

Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 20
13 to 24
Strength to Weight: Bending, points 19
14 to 21
Thermal Diffusivity, mm2/s 8.3
16
Thermal Shock Resistance, points 21
14 to 27

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 80 to 84.2
85.2 to 89.7
Iron (Fe), % 0 to 0.15
0 to 0.6
Lead (Pb), % 0 to 0.15
0 to 0.050
Magnesium (Mg), % 0 to 0.010
0
Manganese (Mn), % 0 to 0.15
0 to 0.2
Nickel (Ni), % 0 to 0.2
8.5 to 10.5
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 3.8 to 4.2
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
1.8 to 2.8
Zinc (Zn), % 12 to 16
0 to 0.5
Residuals, % 0 to 0.5
0 to 0.2