C72200 Copper-nickel vs. C27000 Brass
Both C72200 copper-nickel and C27000 brass are copper alloys. They have 66% of their average alloy composition in common.
For each property being compared, the top bar is C72200 copper-nickel and the bottom bar is C27000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 130 | |
110 |
Poisson's Ratio | 0.33 | |
0.31 |
Rockwell B Hardness | 71 to 86 | |
53 to 91 |
Rockwell Superficial 30T Hardness | 64 to 75 | |
52 to 78 |
Shear Modulus, GPa | 48 | |
40 |
Tensile Strength: Ultimate (UTS), MPa | 350 to 580 | |
370 to 650 |
Thermal Properties
Latent Heat of Fusion, J/g | 220 | |
180 |
Maximum Temperature: Mechanical, °C | 230 | |
130 |
Melting Completion (Liquidus), °C | 1180 | |
930 |
Melting Onset (Solidus), °C | 1120 | |
900 |
Specific Heat Capacity, J/kg-K | 400 | |
390 |
Thermal Conductivity, W/m-K | 34 | |
120 |
Thermal Expansion, µm/m-K | 16 | |
20 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 6.5 | |
27 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 6.6 | |
30 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 36 | |
24 |
Density, g/cm3 | 8.9 | |
8.1 |
Embodied Carbon, kg CO2/kg material | 3.9 | |
2.7 |
Embodied Energy, MJ/kg | 59 | |
45 |
Embodied Water, L/kg | 300 | |
320 |
Common Calculations
Stiffness to Weight: Axial, points | 8.0 | |
7.2 |
Stiffness to Weight: Bending, points | 19 | |
19 |
Strength to Weight: Axial, points | 11 to 18 | |
13 to 22 |
Strength to Weight: Bending, points | 12 to 17 | |
14 to 21 |
Thermal Diffusivity, mm2/s | 9.6 | |
37 |
Thermal Shock Resistance, points | 12 to 20 | |
12 to 22 |
Alloy Composition
Chromium (Cr), % | 0.3 to 0.7 | |
0 |
Copper (Cu), % | 78.1 to 84.2 | |
63 to 68.5 |
Iron (Fe), % | 0.5 to 1.0 | |
0 to 0.1 |
Lead (Pb), % | 0 to 0.050 | |
0 to 0.070 |
Manganese (Mn), % | 0 to 1.0 | |
0 |
Nickel (Ni), % | 15 to 18 | |
0 |
Zinc (Zn), % | 0 to 1.0 | |
31 to 37 |
Residuals, % | 0 | |
0 to 0.3 |