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
| Mg | 92.8 to 95.8 | |
| Al | 3.5 to 5.0 | |
| Si | 0.5 to 1.5 | |
| Mn | 0.2 to 0.5 | |
| Zn | 0 to 0.12 | |
| Cu | 0 to 0.060 | |
| 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