C27400 Brass vs. C72500 Copper-nickel
Both C27400 brass and C72500 copper-nickel are copper alloys. They have 63% of their average alloy composition in common.
For each property being compared, the top bar is C27400 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 | 0.31 | |
0.34 |
Rockwell B Hardness | 53 to 91 | |
75 to 100 |
Rockwell Superficial 30T Hardness | 52 to 78 | |
62 to 89 |
Shear Modulus, GPa | 40 | |
45 |
Tensile Strength: Ultimate (UTS), MPa | 370 to 650 | |
420 to 780 |
Thermal Properties
Latent Heat of Fusion, J/g | 170 | |
210 |
Maximum Temperature: Mechanical, °C | 120 | |
210 |
Melting Completion (Liquidus), °C | 920 | |
1130 |
Melting Onset (Solidus), °C | 870 | |
1060 |
Specific Heat Capacity, J/kg-K | 390 | |
390 |
Thermal Conductivity, W/m-K | 120 | |
54 |
Thermal Expansion, µm/m-K | 21 | |
17 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 28 | |
11 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 31 | |
11 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 23 | |
35 |
Density, g/cm3 | 8.0 | |
8.9 |
Embodied Carbon, kg CO2/kg material | 2.7 | |
3.6 |
Embodied Energy, MJ/kg | 45 | |
55 |
Embodied Water, L/kg | 320 | |
320 |
Common Calculations
Stiffness to Weight: Axial, points | 7.2 | |
7.6 |
Stiffness to Weight: Bending, points | 20 | |
19 |
Strength to Weight: Axial, points | 13 to 23 | |
13 to 24 |
Strength to Weight: Bending, points | 14 to 21 | |
14 to 21 |
Thermal Diffusivity, mm2/s | 37 | |
16 |
Thermal Shock Resistance, points | 12 to 22 | |
14 to 27 |
Alloy Composition
Copper (Cu), % | 61 to 64 | |
85.2 to 89.7 |
Iron (Fe), % | 0 to 0.1 | |
0 to 0.6 |
Lead (Pb), % | 0 to 0.050 | |
0 to 0.050 |
Manganese (Mn), % | 0 | |
0 to 0.2 |
Nickel (Ni), % | 0 | |
8.5 to 10.5 |
Tin (Sn), % | 0 | |
1.8 to 2.8 |
Zinc (Zn), % | 35.6 to 39 | |
0 to 0.5 |
Residuals, % | 0 | |
0 to 0.2 |