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
| Mg | 88.9 to 93.4 | |
| Y | 4.8 to 5.5 | |
| Zr | 0.4 to 1.0 | |
| Zn | 0 to 0.2 | |
| Li | 0 to 0.2 | |
| Mn | 0 to 0.15 | |
| Cu | 0 to 0.030 | |
| Si | 0 to 0.010 | |
| Fe | 0 to 0.010 | |
| Ni | 0 to 0.0050 | |
| rare e. | 1.5 to 4.0 | |
| res. | 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