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C99750 Brass vs. C72200 Copper-nickel

Both C99750 brass and C72200 copper-nickel 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 C99750 brass and the bottom bar is C72200 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
130
Poisson's Ratio 0.32
0.33
Rockwell B Hardness 77 to 82
71 to 86
Shear Modulus, GPa 48
48
Tensile Strength: Ultimate (UTS), MPa 450 to 520
350 to 580

Thermal Properties

Latent Heat of Fusion, J/g 200
220
Maximum Temperature: Mechanical, °C 160
230
Melting Completion (Liquidus), °C 840
1180
Melting Onset (Solidus), °C 820
1120
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 20
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 23
36
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 3.1
3.9
Embodied Energy, MJ/kg 51
59
Embodied Water, L/kg 310
300

Common Calculations

Stiffness to Weight: Axial, points 8.6
8.0
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 15 to 18
11 to 18
Strength to Weight: Bending, points 16 to 18
12 to 17
Thermal Shock Resistance, points 13 to 15
12 to 20

Alloy Composition

Aluminum (Al), % 0.25 to 3.0
0
Chromium (Cr), % 0
0.3 to 0.7
Copper (Cu), % 55 to 61
78.1 to 84.2
Iron (Fe), % 0 to 1.0
0.5 to 1.0
Lead (Pb), % 0.5 to 2.5
0 to 0.050
Manganese (Mn), % 17 to 23
0 to 1.0
Nickel (Ni), % 0 to 5.0
15 to 18
Zinc (Zn), % 17 to 23
0 to 1.0
Residuals, % 0
0 to 0.2