EN-MC65220 (MgRE2Ag1Zr) Magnesium
EN-MC65220 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. MC65220 is the EN numeric designation for this material. MgRE2Ag1Zr is the EN chemical designation. Additionally, the British Standard (BS) designation is MAG 13.
It has a very high base cost among magnesium alloys. In addition, it has a very low ductility and a moderately high density.
The graph bars on the material properties cards below compare EN-MC65220 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
80
Elastic (Young's, Tensile) Modulus
44 GPa 6.4 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
150 MPa 22 x 103 psi
Tensile Strength: Ultimate (UTS)
270 MPa 39 x 103 psi
Tensile Strength: Yield (Proof)
200 MPa 29 x 103 psi
Thermal Properties
Latent Heat of Fusion
340 J/g
Maximum Temperature: Mechanical
160 °C 320 °F
Melting Completion (Liquidus)
610 °C 1120 °F
Melting Onset (Solidus)
550 °C 1020 °F
Specific Heat Capacity
980 J/kg-K 0.23 BTU/lb-°F
Thermal Conductivity
110 W/m-K 65 BTU/h-ft-°F
Thermal Expansion
26 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
25 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Otherwise Unclassified Properties
Base Metal Price
80 % relative
Density
1.9 g/cm3 120 lb/ft3
Embodied Carbon
27 kg CO2/kg material
Embodied Energy
210 MJ/kg 89 x 103 BTU/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
5.5 MJ/m3
Resilience: Unit (Modulus of Resilience)
450 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
62 points
Strength to Weight: Axial
40 points
Strength to Weight: Bending
49 points
Thermal Diffusivity
61 mm2/s
Thermal Shock Resistance
17 points
Alloy Composition
| Mg | 93.8 to 96.8 | |
| Ag | 1.3 to 1.7 | |
| Zr | 0.4 to 1.0 | |
| Zn | 0 to 0.2 | |
| Cu | 0.050 to 0.1 | |
| Mn | 0 to 0.15 | |
| Si | 0 to 0.010 | |
| Fe | 0 to 0.010 | |
| Ni | 0 to 0.0050 | |
| rare e. | 1.5 to 3.0 | |
| 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