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C33000 Brass vs. C72700 Copper-nickel

Both C33000 brass and C72700 copper-nickel are copper alloys. They have 67% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C33000 brass and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 7.0 to 60
4.0 to 36
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
44
Shear Strength, MPa 240 to 300
310 to 620
Tensile Strength: Ultimate (UTS), MPa 320 to 520
460 to 1070
Tensile Strength: Yield (Proof), MPa 110 to 450
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 940
1100
Melting Onset (Solidus), °C 900
930
Specific Heat Capacity, J/kg-K 390
380
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
36
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 2.7
4.0
Embodied Energy, MJ/kg 45
62
Embodied Water, L/kg 320
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35 to 150
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 950
1420 to 4770
Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 11 to 18
14 to 34
Strength to Weight: Bending, points 13 to 18
15 to 26
Thermal Diffusivity, mm2/s 37
16
Thermal Shock Resistance, points 11 to 17
16 to 38

Alloy Composition

Copper (Cu), % 65 to 68
82.1 to 86
Iron (Fe), % 0 to 0.070
0 to 0.5
Lead (Pb), % 0.25 to 0.7
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 30.8 to 34.8
0 to 0.5
Residuals, % 0
0 to 0.3