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H02 C68800 Brass vs. H02 C71000 Copper-nickel

Both H02 C68800 brass and H02 C71000 copper-nickel are copper alloys. Both are furnished in the H02 (half hard) temper. They have 74% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is H02 C68800 brass and the bottom bar is H02 C71000 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
71
Rockwell Superficial 30T Hardness 78
64
Shear Modulus, GPa 41
49
Tensile Strength: Ultimate (UTS), MPa 640
440

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 160
240
Melting Completion (Liquidus), °C 960
1200
Melting Onset (Solidus), °C 950
1150
Specific Heat Capacity, J/kg-K 400
400
Thermal Conductivity, W/m-K 40
43
Thermal Expansion, µm/m-K 19
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 20
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 26
37
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.8
4.3
Embodied Energy, MJ/kg 48
63
Embodied Water, L/kg 350
290

Common Calculations

Stiffness to Weight: Axial, points 7.3
8.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 22
14
Strength to Weight: Bending, points 20
14
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 22
16

Alloy Composition


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Aluminum (Al), % 3.0 to 3.8
0
Cobalt (Co), % 0.25 to 0.55
0
Copper (Cu), % 70.8 to 75.5
73.5 to 80.5
Iron (Fe), % 0 to 0.2
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
19 to 23
Zinc (Zn), % 21.3 to 24.1
0 to 1.0
Residuals, % 0 to 0.5
0 to 0.5