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C72800 Copper-nickel vs. C84800 Brass

Both C72800 copper-nickel and C84800 brass are copper alloys. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C72800 copper-nickel and the bottom bar is C84800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 3.9 to 23
18
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
39
Tensile Strength: Ultimate (UTS), MPa 520 to 1270
230
Tensile Strength: Yield (Proof), MPa 250 to 1210
100

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
150
Melting Completion (Liquidus), °C 1080
950
Melting Onset (Solidus), °C 920
830
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 55
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
16
Electrical Conductivity: Equal Weight (Specific), % IACS 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 38
27
Density, g/cm3 8.8
8.6
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 68
46
Embodied Water, L/kg 360
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 99
34
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 5650
53
Stiffness to Weight: Axial, points 7.4
6.6
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 17 to 40
7.3
Strength to Weight: Bending, points 16 to 30
9.6
Thermal Diffusivity, mm2/s 17
23
Thermal Shock Resistance, points 19 to 45
8.2

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0 to 0.020
0 to 0.25
Bismuth (Bi), % 0 to 0.0010
0
Boron (B), % 0 to 0.0010
0
Copper (Cu), % 78.3 to 82.8
75 to 77
Iron (Fe), % 0 to 0.5
0 to 0.4
Lead (Pb), % 0 to 0.0050
5.5 to 7.0
Magnesium (Mg), % 0.0050 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0
Nickel (Ni), % 9.5 to 10.5
0 to 1.0
Niobium (Nb), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.0050
0 to 1.5
Silicon (Si), % 0 to 0.050
0 to 0.0050
Sulfur (S), % 0 to 0.0025
0 to 0.080
Tin (Sn), % 7.5 to 8.5
2.0 to 3.0
Titanium (Ti), % 0 to 0.010
0
Zinc (Zn), % 0 to 1.0
13 to 17
Residuals, % 0
0 to 0.7