ZE63A (ZE63A-T6, M16630) Magnesium

ZE63A magnesium is an alloy of magnesium. It is typically furnished in the T6 temper. ZE63A is the ASTM designation for this material. M16630 is the UNS number.

Material Properties

Base Metal Price37 % rel

Brinell Hardness73

Compressive (Crushing) Strength450 MPa (65 x 103 psi)

Density2.2 g/cm3 (140 lb/ft3)

Elastic (Young's, Tensile) Modulus45 GPa (6.5 x 106 psi)

Electrical Conductivity31 % IACS

Electrical Resistivity Order of Magnitude-7 10x Ω-m

Elongation at Break7.7 %

Fatigue Strength (Endurance Limit)96 MPa (14 x 103 psi)

Fracture Toughness27 MPa-m1/2

Melting Onset (Solidus)390 °C (730 °F)

Modulus of Resilience (Unit Resilience)400 kJ/m3

Poisson's Ratio0.29

Shear Modulus17 GPa (2.5 x 106 psi)

Solidification (Pattern Maker's) Shrinkage1.6 %

Specific Heat Capacity960 J/kg-K

Strength to Weight Ratio140 kN-m/kg

Tensile Strength: Ultimate (UTS)300 MPa (44 x 103 psi)

Tensile Strength: Yield (Proof)190 MPa (28 x 103 psi)

Thermal Conductivity110 W/m-K

Thermal Diffusivity52 m2/s

Thermal Expansion27 µm/m-K

Unit Rupture Work (Ultimate Resilience)20 MJ/m3

The length of each bar compares the given value to the highest value in the database.

Alloy Composition

Magnesium (Mg)89.6 to 92 %

Zinc (Zn)5.5 to 6.0 %

Unspecified Rare Earths2.1 to 3.0 %

Zirconium (Zr)0.4 to 1.0 %

Residuals0 to 0.3 %

Copper (Cu)0 to 0.1 %

Nickel (Ni)0 to 0.010 %

Further Reading

ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings

Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993