MakeItFrom.com
Menu (ESC)

EN-MC21230 (MgAl6Mn) Magnesium

EN-MC21230 magnesium is a magnesium alloy. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. MC21230 is the EN numeric designation for this material. MgAl6Mn is the EN chemical designation.

It has a fairly high ductility among magnesium alloys. In addition, it has a moderately low thermal conductivity and a moderately low tensile strength.

The graph bars on the material properties cards below compare EN-MC21230 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

Brinell Hardness

63

Elastic (Young's, Tensile) Modulus

45 GPa 6.6 x 106 psi

Elongation at Break

10 %

Fatigue Strength

99 MPa 14 x 103 psi

Poisson's Ratio

0.29

Shear Modulus

18 GPa 2.5 x 106 psi

Shear Strength

130 MPa 19 x 103 psi

Tensile Strength: Ultimate (UTS)

220 MPa 32 x 103 psi

Tensile Strength: Yield (Proof)

140 MPa 20 x 103 psi

Thermal Properties

Latent Heat of Fusion

350 J/g

Maximum Temperature: Mechanical

120 °C 260 °F

Melting Completion (Liquidus)

600 °C 1120 °F

Melting Onset (Solidus)

520 °C 960 °F

Specific Heat Capacity

1000 J/kg-K 0.24 BTU/lb-°F

Thermal Conductivity

72 W/m-K 41 BTU/h-ft-°F

Thermal Expansion

27 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

12 % IACS

Electrical Conductivity: Equal Weight (Specific)

63 % IACS

Otherwise Unclassified Properties

Base Metal Price

12 % relative

Density

1.7 g/cm3 110 lb/ft3

Embodied Carbon

23 kg CO2/kg material

Embodied Energy

160 MJ/kg 68 x 103 BTU/lb

Embodied Water

990 L/kg 120 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

19 MJ/m3

Resilience: Unit (Modulus of Resilience)

200 kJ/m3

Stiffness to Weight: Axial

15 points

Stiffness to Weight: Bending

71 points

Strength to Weight: Axial

36 points

Strength to Weight: Bending

48 points

Thermal Diffusivity

43 mm2/s

Thermal Shock Resistance

13 points

Alloy Composition

Magnesium (Mg) 90.5 to 94.4
Aluminum (Al) 5.5 to 8.5
Manganese (Mn) 0.1 to 0.6
Zinc (Zn) 0 to 0.3
Silicon (Si) 0 to 0.1
Copper (Cu) 0 to 0.010
Iron (Fe) 0 to 0.0050
Nickel (Ni) 0 to 0.0020
Residuals 0 to 0.010

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

Followup Questions

Similar Alloys

Further Reading

ISO 16220: Magnesium and magnesium alloys - Magnesium alloy ingots and castings

EN 1753: Magnesium and magnesium alloys. Magnesium alloy ingots and castings