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H08 C24000 Brass vs. H08 C72200 Copper-nickel

Both H08 C24000 brass and H08 C72200 copper-nickel are copper alloys. Both are furnished in the H08 (spring) temper. They have 81% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is H08 C24000 brass and the bottom bar is H08 C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Poisson's Ratio 0.32
0.33
Rockwell B Hardness 90
86
Rockwell Superficial 30T Hardness 77
75
Shear Modulus, GPa 42
48
Tensile Strength: Ultimate (UTS), MPa 620
580

Thermal Properties

Latent Heat of Fusion, J/g 190
220
Maximum Temperature: Mechanical, °C 160
230
Melting Completion (Liquidus), °C 1000
1180
Melting Onset (Solidus), °C 970
1120
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 140
34
Thermal Expansion, µm/m-K 19
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 34
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 27
36
Density, g/cm3 8.5
8.9
Embodied Carbon, kg CO2/kg material 2.6
3.9
Embodied Energy, MJ/kg 43
59
Embodied Water, L/kg 320
300

Common Calculations

Stiffness to Weight: Axial, points 7.2
8.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 43
9.6
Thermal Shock Resistance, points 21
20

Alloy Composition

Chromium (Cr), % 0
0.3 to 0.7
Copper (Cu), % 78.5 to 81.5
78.1 to 84.2
Iron (Fe), % 0 to 0.050
0.5 to 1.0
Lead (Pb), % 0 to 0.050
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
15 to 18
Zinc (Zn), % 18.2 to 21.5
0 to 1.0
Residuals, % 0
0 to 0.2