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C43000 Brass vs. C71000 Copper-nickel

Both C43000 brass and C71000 copper-nickel are copper alloys. They have 78% 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 C43000 brass and the bottom bar is C71000 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Poisson's Ratio 0.33
0.33
Rockwell B Hardness 30 to 100
59 to 85
Rockwell Superficial 30T Hardness 57 to 86
56 to 73
Shear Modulus, GPa 42
49
Tensile Strength: Ultimate (UTS), MPa 320 to 710
320 to 560

Thermal Properties

Latent Heat of Fusion, J/g 190
230
Maximum Temperature: Mechanical, °C 170
240
Melting Completion (Liquidus), °C 1030
1200
Melting Onset (Solidus), °C 1000
1150
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 120
43
Thermal Expansion, µm/m-K 18
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 28
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 29
37
Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 2.8
4.3
Embodied Energy, MJ/kg 46
63
Embodied Water, L/kg 330
290

Common Calculations

Stiffness to Weight: Axial, points 7.1
8.2
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10 to 23
10 to 18
Strength to Weight: Bending, points 12 to 20
12 to 17
Thermal Diffusivity, mm2/s 36
12
Thermal Shock Resistance, points 11 to 25
12 to 20

Alloy Composition

Copper (Cu), % 84 to 87
73.5 to 80.5
Iron (Fe), % 0 to 0.050
0.5 to 1.0
Lead (Pb), % 0 to 0.1
0 to 0.050
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
19 to 23
Tin (Sn), % 1.7 to 2.7
0
Zinc (Zn), % 9.7 to 14.3
0 to 1.0
Residuals, % 0
0 to 0.5

Comparable Variants