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C85200 Brass vs. C72500 Copper-nickel

Both C85200 brass and C72500 copper-nickel are copper alloys. They have 75% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C85200 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 0.32
0.34
Shear Modulus, GPa 40
45
Tensile Strength: Ultimate (UTS), MPa 270
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 140
210
Melting Completion (Liquidus), °C 940
1130
Melting Onset (Solidus), °C 930
1060
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 84
54
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
11
Electrical Conductivity: Equal Weight (Specific), % IACS 19
11

Otherwise Unclassified Properties

Base Metal Price, % relative 26
35
Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 46
55
Embodied Water, L/kg 330
320

Common Calculations

Stiffness to Weight: Axial, points 7.0
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 8.9
13 to 24
Strength to Weight: Bending, points 11
14 to 21
Thermal Diffusivity, mm2/s 27
16
Thermal Shock Resistance, points 9.3
14 to 27

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 70 to 74
85.2 to 89.7
Iron (Fe), % 0 to 0.6
0 to 0.6
Lead (Pb), % 1.5 to 3.8
0 to 0.050
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 1.0
8.5 to 10.5
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0.7 to 2.0
1.8 to 2.8
Zinc (Zn), % 20 to 27
0 to 0.5
Residuals, % 0 to 0.9
0 to 0.2