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C26000 Brass vs. Zamak 3

C26000 brass belongs to the copper alloys classification, while Zamak 3 belongs to the zinc alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 C26000 brass and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
86
Elongation at Break, % 2.5 to 66
11
Poisson's Ratio 0.31
0.25
Rockwell B Hardness 53 to 93
50
Shear Modulus, GPa 41
33
Shear Strength, MPa 230 to 390
210
Tensile Strength: Ultimate (UTS), MPa 320 to 680
280
Tensile Strength: Yield (Proof), MPa 110 to 570
210

Thermal Properties

Latent Heat of Fusion, J/g 180
120
Maximum Temperature: Mechanical, °C 140
95
Melting Completion (Liquidus), °C 950
390
Melting Onset (Solidus), °C 920
380
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
27
Electrical Conductivity: Equal Weight (Specific), % IACS 31
38

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.2
6.4
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 45
57
Embodied Water, L/kg 320
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1 to 420
28
Resilience: Unit (Modulus of Resilience), kJ/m3 51 to 1490
260
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 11 to 23
12
Strength to Weight: Bending, points 13 to 21
15
Thermal Diffusivity, mm2/s 38
43
Thermal Shock Resistance, points 11 to 23
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Bismuth (Bi), % 0 to 0.0059
0
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 68.5 to 71.5
0 to 0.25
Iron (Fe), % 0 to 0.050
0 to 0.1
Lead (Pb), % 0 to 0.070
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 28.1 to 31.5
95.3 to 96.5
Residuals, % 0 to 0.3
0