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C72200 Copper-nickel vs. C68300 Brass

Both C72200 copper-nickel and C68300 brass are copper alloys. They have 62% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C72200 copper-nickel and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
100
Poisson's Ratio 0.33
0.31
Rockwell B Hardness 71 to 86
60
Shear Modulus, GPa 48
40
Tensile Strength: Ultimate (UTS), MPa 350 to 580
430

Thermal Properties

Latent Heat of Fusion, J/g 220
180
Maximum Temperature: Mechanical, °C 230
120
Melting Completion (Liquidus), °C 1180
900
Melting Onset (Solidus), °C 1120
890
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 34
120
Thermal Expansion, µm/m-K 16
20

Otherwise Unclassified Properties

Base Metal Price, % relative 36
23
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 3.9
2.8
Embodied Energy, MJ/kg 59
46
Embodied Water, L/kg 300
340

Common Calculations

Stiffness to Weight: Axial, points 8.0
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 11 to 18
15
Strength to Weight: Bending, points 12 to 17
16
Thermal Diffusivity, mm2/s 9.6
38
Thermal Shock Resistance, points 12 to 20
14

Alloy Composition

Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Chromium (Cr), % 0.3 to 0.7
0
Copper (Cu), % 78.1 to 84.2
59 to 63
Iron (Fe), % 0.5 to 1.0
0
Lead (Pb), % 0 to 0.050
0 to 0.090
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 15 to 18
0
Silicon (Si), % 0
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 0 to 1.0
34.2 to 40.4
Residuals, % 0
0 to 0.5