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AS41A (AS41A-F, M10410) Magnesium

AS41A magnesium is a magnesium alloy. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. AS41A is the ASTM designation for this material. M10410 is the UNS number.

It has a very low density among magnesium alloys. In addition, it has a fairly high ductility and a fairly high melting temperature.

The graph bars on the material properties cards below compare AS41A magnesium to other magnesium alloys (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

45 GPa 6.6 x 106 psi

Elongation at Break

11 %

Fatigue Strength

100 MPa 15 x 103 psi

Poisson's Ratio

0.29

Shear Modulus

17 GPa 2.5 x 106 psi

Shear Strength

130 MPa 19 x 103 psi

Tensile Strength: Ultimate (UTS)

230 MPa 33 x 103 psi

Tensile Strength: Yield (Proof)

140 MPa 20 x 103 psi

Thermal Properties

Latent Heat of Fusion

370 J/g

Maximum Temperature: Mechanical

110 °C 230 °F

Melting Completion (Liquidus)

620 °C 1150 °F

Melting Onset (Solidus)

570 °C 1050 °F

Specific Heat Capacity

1000 J/kg-K 0.24 BTU/lb-°F

Thermal Conductivity

68 W/m-K 39 BTU/h-ft-°F

Thermal Expansion

26 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

17 % IACS

Electrical Conductivity: Equal Weight (Specific)

92 % IACS

Otherwise Unclassified Properties

Base Metal Price

12 % relative

Density

1.6 g/cm3 100 lb/ft3

Embodied Carbon

23 kg CO2/kg material

Embodied Energy

160 MJ/kg 68 x 103 BTU/lb

Embodied Water

980 L/kg 120 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

21 MJ/m3

Resilience: Unit (Modulus of Resilience)

220 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

72 points

Strength to Weight: Axial

38 points

Strength to Weight: Bending

50 points

Thermal Diffusivity

41 mm2/s

Thermal Shock Resistance

14 points

Alloy Composition

Magnesium (Mg)Mg 92.8 to 95.8
Aluminum (Al)Al 3.5 to 5.0
Silicon (Si)Si 0.5 to 1.5
Manganese (Mn)Mn 0.2 to 0.5
Zinc (Zn)Zn 0 to 0.12
Copper (Cu)Cu 0 to 0.060
Nickel (Ni)Ni 0 to 0.030

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM B94: Standard Specification for Magnesium-Alloy Die Castings

Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014

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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015