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C27200 Brass vs. C72900 Copper-nickel

Both C27200 brass and C72900 copper-nickel are copper alloys. They have 64% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C27200 brass and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 10 to 50
6.0 to 20
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
45
Shear Strength, MPa 230 to 320
540 to 630
Tensile Strength: Ultimate (UTS), MPa 370 to 590
870 to 1080
Tensile Strength: Yield (Proof), MPa 150 to 410
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 920
1120
Melting Onset (Solidus), °C 870
950
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 120
29
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 31
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 24
39
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 2.7
4.6
Embodied Energy, MJ/kg 45
72
Embodied Water, L/kg 320
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 270
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 810
2030 to 3490
Stiffness to Weight: Axial, points 7.2
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 20
27 to 34
Strength to Weight: Bending, points 14 to 19
23 to 27
Thermal Diffusivity, mm2/s 37
8.6
Thermal Shock Resistance, points 12 to 20
31 to 38

Alloy Composition

Copper (Cu), % 62 to 65
74.1 to 78
Iron (Fe), % 0 to 0.070
0 to 0.5
Lead (Pb), % 0 to 0.070
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 0
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 0
7.5 to 8.5
Zinc (Zn), % 34.6 to 38
0 to 0.5
Residuals, % 0
0 to 0.3