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C84500 Brass vs. C72800 Copper-nickel

Both C84500 brass and C72800 copper-nickel are copper alloys. They have 82% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C84500 brass and the bottom bar is C72800 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 28
3.9 to 23
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
44
Tensile Strength: Ultimate (UTS), MPa 240
520 to 1270
Tensile Strength: Yield (Proof), MPa 97
250 to 1210

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 150
200
Melting Completion (Liquidus), °C 980
1080
Melting Onset (Solidus), °C 840
920
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 72
55
Thermal Expansion, µm/m-K 19
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 28
38
Density, g/cm3 8.7
8.8
Embodied Carbon, kg CO2/kg material 2.9
4.4
Embodied Energy, MJ/kg 47
68
Embodied Water, L/kg 340
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
37 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 45
260 to 5650
Stiffness to Weight: Axial, points 6.6
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.7
17 to 40
Strength to Weight: Bending, points 9.8
16 to 30
Thermal Diffusivity, mm2/s 23
17
Thermal Shock Resistance, points 8.6
19 to 45

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.1
Antimony (Sb), % 0 to 0.25
0 to 0.020
Bismuth (Bi), % 0
0 to 0.0010
Boron (B), % 0
0 to 0.0010
Copper (Cu), % 77 to 79
78.3 to 82.8
Iron (Fe), % 0 to 0.4
0 to 0.5
Lead (Pb), % 6.0 to 7.5
0 to 0.0050
Magnesium (Mg), % 0
0.0050 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0 to 1.0
9.5 to 10.5
Niobium (Nb), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.0050
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.080
0 to 0.0025
Tin (Sn), % 2.0 to 4.0
7.5 to 8.5
Titanium (Ti), % 0
0 to 0.010
Zinc (Zn), % 10 to 14
0 to 1.0
Residuals, % 0
0 to 0.3