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Grade 366 Molybdenum vs. Zamak 3

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while Zamak 3 belongs to the zinc alloys. There are 20 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
86
Elongation at Break, % 2.2
11
Poisson's Ratio 0.3
0.25
Shear Modulus, GPa 120
33
Tensile Strength: Ultimate (UTS), MPa 580
280
Tensile Strength: Yield (Proof), MPa 470
210

Thermal Properties

Latent Heat of Fusion, J/g 310
120
Specific Heat Capacity, J/kg-K 210
410
Thermal Expansion, µm/m-K 7.6
27

Otherwise Unclassified Properties

Density, g/cm3 12
6.4
Embodied Carbon, kg CO2/kg material 27
3.0
Embodied Energy, MJ/kg 340
57
Embodied Water, L/kg 300
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
28
Resilience: Unit (Modulus of Resilience), kJ/m3 370
260
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 13
12
Strength to Weight: Bending, points 13
15
Thermal Shock Resistance, points 18
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Molybdenum (Mo), % 66.9 to 73
0
Nickel (Ni), % 0 to 0.0020
0 to 0.020
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0025
0
Silicon (Si), % 0 to 0.010
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 27 to 33
0
Zinc (Zn), % 0
95.3 to 96.5