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C33000 Brass vs. C72500 Copper-nickel

Both C33000 brass and C72500 copper-nickel are copper alloys. They have 67% of their average alloy composition in common. There are 25 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 C33000 brass and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Rockwell Superficial 30T Hardness 26 to 69
62 to 89
Shear Modulus, GPa 40
45
Tensile Strength: Ultimate (UTS), MPa 320 to 520
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 940
1130
Melting Onset (Solidus), °C 900
1060
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
54
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
11
Electrical Conductivity: Equal Weight (Specific), % IACS 29
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
35
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 45
55
Embodied Water, L/kg 320
320

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 18
13 to 24
Strength to Weight: Bending, points 13 to 18
14 to 21
Thermal Diffusivity, mm2/s 37
16
Thermal Shock Resistance, points 11 to 17
14 to 27

Alloy Composition

Copper (Cu), % 65 to 68
85.2 to 89.7
Iron (Fe), % 0 to 0.070
0 to 0.6
Lead (Pb), % 0.25 to 0.7
0 to 0.050
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
8.5 to 10.5
Tin (Sn), % 0
1.8 to 2.8
Zinc (Zn), % 30.8 to 34.8
0 to 0.5
Residuals, % 0
0 to 0.2

Comparable Variants