AM50A (AM50A-F, M10500) Magnesium

AM50A magnesium is an alloy of magnesium. It is typically furnished in the as-fabricated (no temper or treatment) condition. AM50A is the ASTM designation for this material. M10500 is the UNS number.

Material Properties

Base Metal Price20 % rel

Brinell Hardness58

Density1.8 g/cm3 (110 lb/ft3)

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

Elongation at Break11 %

Fatigue Strength (Endurance Limit)70 MPa (10 x 103 psi)

Melting Onset (Solidus)570 °C (1060 °F)

Modulus of Resilience (Unit Resilience)160 kJ/m3

Poisson's Ratio0.29

Specific Heat Capacity1000 J/kg-K

Strength to Weight Ratio120 kN-m/kg

Tensile Strength: Ultimate (UTS)210 MPa (30 x 103 psi)

Tensile Strength: Yield (Proof)120 MPa (17 x 103 psi)

Thermal Expansion25 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)93.7 to 95.3 %

Aluminum (Al)4.4 to 5.4 %

Manganese (Mn)0.26 to 0.6 %

Zinc (Zn)0 to 0.22 %

Silicon (Si)0 to 0.1 %

Copper (Cu)0 to 0.010 %

Iron (Fe)0 to 0.0040 %

Nickel (Ni)0 to 0.0020 %

Further Reading

ASTM B94: Standard Specification for Magnesium-Alloy Die 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

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