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Zamak 2 (ASTM AC43A, Z35541, Mazak 2) Zinc Alloy
Material Properties
Base Metal Price: 19 % rel
Compressive (Crushing) Strength: 640 MPa (93 x 103 psi)
Density: 6.60 g/cm3 (412 lb/ft3)
Elastic (Young's, Tensile) Modulus: 86 GPa (12 x 106 psi)
Electrical Conductivity: 25 % IACS
Elongation at Break: 7 %
Fatigue Strength (Endurance Limit): 59 MPa (8.6 x 103 psi)
Melting Onset (Solidus): 379 °C (710 °F)
Shear Modulus: 33 GPa (4.8 106 psi)
Shear Strength: 320 MPa (46 x 103 psi)
Specific Heat Capacity: 420 J/kg-K
Strength to Weight Ratio: 55 kN-m/kg
Tensile Strength: Ultimate (UTS): 360 MPa (52 x 103 psi)
Thermal Conductivity: 100 W/m-K
Thermal Diffusivity: 36
Thermal Expansion: 28 µm/m-K
Alloy Composition
Zinc (Zn): 92.5 to 94.0 %
Aluminum (Al): 3.5 to 4.3 %
Copper (Cu): 2.5 to 3.0 %
Iron (Fe): 0 to 0.1 %
Magnesium (Mg): 0.02 to 0.05 %
Lead (Pb): 0 to 0.005 %
Cadmium (Cd): 0 to 0.004 %
Tin (Sn): 0 to 0.003 %
See Also
ASTM B 86: Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993