AZ61A (AZ61A-F, MgAl6Zn, M11610) Magnesium

AZ61A magnesium is an alloy of magnesium. It is typically furnished in the as-fabricated (no temper or treatment) condition. AZ61A is the ASTM designation for this material. MgAl6Zn is the EN chemical designation. And M11610 is the UNS number.

Material Properties

Base Metal Price20 % rel

Compressive (Crushing) Strength380 MPa (55 x 103 psi)

Density1.9 g/cm3 (120 lb/ft3)

Elastic (Young's, Tensile) Modulus46 GPa (6.7 x 106 psi)

Electrical Conductivity12 % IACS

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

Elongation at Break12 %

Fatigue Strength (Endurance Limit)110 MPa (16 x 103 psi)

Melting Onset (Solidus)530 °C (990 °F)

Modulus of Resilience (Unit Resilience)280 kJ/m3

Poisson's Ratio0.29

Shear Modulus17 GPa (2.5 x 106 psi)

Shear Strength150 MPa (22 x 103 psi)

Specific Heat Capacity1030 J/kg-K

Strength to Weight Ratio150 kN-m/kg

Tensile Strength: Ultimate (UTS)280 MPa (41 x 103 psi)

Tensile Strength: Yield (Proof)160 MPa (23 x 103 psi)

Thermal Conductivity53 W/m-K

Thermal Diffusivity27 m2/s

Thermal Expansion27 µm/m-K

Unit Rupture Work (Ultimate Resilience)29 MJ/m3

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

Alloy Composition

Magnesium (Mg)90.3 to 93.7 %

Aluminum (Al)5.8 to 7.2 %

Zinc (Zn)0.4 to 1.5 %

Manganese (Mn)0.15 to 0.5 %

Residuals0 to 0.3 %

Silicon (Si)0 to 0.1 %

Copper (Cu)0 to 0.050 %

Iron (Fe)0 to 0.0050 %

Nickel (Ni)0 to 0.0050 %

Further Reading

ASTM B107: Standard Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire

ASTM B91: Standard Specification for Magnesium-Alloy Forgings

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