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EN-MC95310 (MgY5RE4Zr) Magnesium

EN-MC95310 magnesium is a magnesium alloy. Cited properties are appropriate for the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. MC95310 is the EN numeric designation for this material. MgY5RE4Zr is the EN chemical designation. Additionally, the British Standard (BS) designation is MAG 14.

It has a very high embodied energy among magnesium alloys. In addition, it has a fairly high base cost and a very low thermal conductivity.

The graph bars on the material properties cards below compare EN-MC95310 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

85

Elastic (Young's, Tensile) Modulus

45 GPa 6.5 x 106 psi

Elongation at Break

2.2 %

Fatigue Strength

110 MPa 16 x 103 psi

Poisson's Ratio

0.29

Shear Modulus

17 GPa 2.5 x 106 psi

Shear Strength

160 MPa 23 x 103 psi

Tensile Strength: Ultimate (UTS)

280 MPa 41 x 103 psi

Tensile Strength: Yield (Proof)

190 MPa 28 x 103 psi

Thermal Properties

Latent Heat of Fusion

330 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

540 °C 1000 °F

Specific Heat Capacity

960 J/kg-K 0.23 BTU/lb-°F

Thermal Conductivity

51 W/m-K 30 BTU/h-ft-°F

Thermal Expansion

25 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

11 % IACS

Electrical Conductivity: Equal Weight (Specific)

50 % IACS

Otherwise Unclassified Properties

Base Metal Price

34 % relative

Density

1.9 g/cm3 120 lb/ft3

Embodied Carbon

29 kg CO2/kg material

Embodied Energy

260 MJ/kg 110 x 103 BTU/lb

Embodied Water

900 L/kg 110 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

5.6 MJ/m3

Resilience: Unit (Modulus of Resilience)

420 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

61 points

Strength to Weight: Axial

40 points

Strength to Weight: Bending

49 points

Thermal Diffusivity

28 mm2/s

Thermal Shock Resistance

18 points

Alloy Composition

Magnesium (Mg) 88.9 to 93.4
Yttrium (Y) 4.8 to 5.5
Zirconium (Zr) 0.4 to 1.0
Zinc (Zn) 0 to 0.2
Lithium (Li) 0 to 0.2
Manganese (Mn) 0 to 0.15
Copper (Cu) 0 to 0.030
Silicon (Si) 0 to 0.010
Iron (Fe) 0 to 0.010
Nickel (Ni) 0 to 0.0050
Unspecified Rare Earths 1.5 to 4.0
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