EN-MC21220 (MgAl5Mn) Magnesium
Magnesium Alloys
Property Overview
Density1.7g/cm³
Elastic Modulus45GPa
Tensile Strength210MPa
Yield Strength120MPa
Brinell Hardness58HB
Maximum Service Temperature120°C
Chemical Composition
NI
0 to 0.0020%
MN
0.1 to 0.6%
SI
0 to 0.1%
CU
0 to 0.010%
AL
4.4 to 5.5%
MG
93.5 to 95.5%
RES.
Residuals res. | | 0 to 0.010%
RESIDUALS RES.
0 to 0.010%
ZN
0 to 0.3%
FE
0 to 0.0050%
Mechanical
Elastic (Young's, Tensile) Modulus
45 GPa
Elongation at Break
11 %
Fatigue Strength
89 MPa
Poisson's Ratio
0.29
Shear Modulus
17 GPa
Shear Strength
120 MPa
Tensile Strength: Ultimate (UTS)
210 MPa
Tensile Strength: Yield (Proof)
120 MPa
Hardness
Brinell Hardness
58
Physical
Density
1.7 g/cm 3
Thermal
Latent Heat of Fusion
350 J/g
Maximum Temperature: Mechanical
120 °C
Melting Completion (Liquidus)
600 °C
Melting Onset (Solidus)
540 °C
Specific Heat Capacity
1000 J/kg-K
Thermal Conductivity
65 W/m-K
Thermal Diffusivity
39 mm 2 /s
Thermal Expansion
27 µm/m-K
Thermal Shock Resistance
12 points
Electrical
Electrical Conductivity: Equal Volume
16 % IACS
Electrical Conductivity: Equal Weight (Specific)
87 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
20 MJ/m 3
Resilience: Unit (Modulus of Resilience)
160 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
71 points
Strength to Weight: Axial
34 points
Strength to Weight: Bending
46 points
Environmental
Base Metal Price
12 % relative
Embodied Carbon
23 kg CO 2 /kg material
Embodied Energy
160 MJ/kg
Embodied Energy
160 MJ/kg 68 x 10 3 BTU/lb
Embodied Water
990 L/kg
Embodied Water
990 L/kg 120 gal/lb
Registered Designations & Aliases
EN-MC21220 (MgAl5Mn) MagnesiumMgAl5Mn
Standards
EN 1753 EN 1753: Magnesium and magnesium alloys. Magnesium alloy ingots and castings
ISO 16220 ISO 16220: Magnesium and magnesium alloys - Magnesium alloy ingots and castings
ISO 16220 ISO 16220: Magnesium and magnesium alloys - Magnesium alloy ingots and castings EN 1753: Magnesium and magnesium alloys. Magnesium alloy ingots and castings Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014