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Magnesium
Magnesium Elektron - Service & Innovation in Magnesium

Magnesium Elektron Elektron® 43 Magnesium Extrusion Alloy, UNS M18434
Categories: Metal; Nonferrous Metal; Magnesium Alloy

Material Notes: Elektron 43 is a light, high strength wrought magnesium alloy for use at temperatures up to 250°C. Designs in Elektron 43 can be 20% to 30% lighter than a corresponding aluminum design. Elektron 43 is available as rolled plate, forging feedstock and extruded bar, section & profile. Elektron 43 is an optimized wrought evolution of the original casting alloy, Elektron WE43. The properties of Elektron 43 mean it is well suited for use as feedstock material from which to machine high performance components, especially those associated with elevated temperature performance. Elektron 43 has undergone extensive flammability testing by the Federal Aviation Administration (FAA). The FAA have shown that the use of Elektron 43 in aircraft seat frames does not reduce the level of safety of the aircraft when compared to heavier aluminum seat components.

Information provided by Magnesium Elektron.

Key Words: UNS M18434; ASTM WE43C
Vendors: Magnesium Elektron is the world leader in high strength magnesium alloys in rolled, extruded and cast forms. Phone (303) 589-3189 or visit www.magnesium-elektron.com.

Click here to view all available suppliers for this material.

Please click here if you are a supplier and would like information on how to add your listing to this material.

 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.83 g/cc1.83 g/cc
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 70 - 9070 - 90
Tensile Strength at Break 305 MPa44200 psiExtruded Bar, Transverse
 352 MPa51100 psiExtruded Bar, Longitudinal
 268 MPa
@Temperature 250 °C
38900 psi
@Temperature 482 °F
 350 MPa
@Temperature 20.0 °C
50800 psi
@Temperature 68.0 °F
Tensile Strength, Ultimate >= 303 MPa>= 43900 psiMin Design Specification, Longitudinal, T5
 180 MPa
@Temperature 300 °C
26100 psi
@Temperature 572 °F
 300 MPa
@Temperature 200 °C
43500 psi
@Temperature 392 °F
 310 MPa
@Temperature 100 °C
45000 psi
@Temperature 212 °F
Tensile Strength, Yield  183 MPa
@Strain 0.2 %
26500 psi
@Strain 0.2 %
Extruded Bar, Transverse
 >= 195 MPa
@Strain 0.2 %
>= 28300 psi
@Strain 0.2 %
Min Design Specification, Longitudinal, T5
 243 MPa
@Strain 0.2 %
35200 psi
@Strain 0.2 %
Extruded Bar, Longitudinal
 135 MPa
@Strain 0.2 %,
Temperature 300 °C
19600 psi
@Strain 0.2 %,
Temperature 572 °F
 200 MPa
@Strain 0.2 %,
Temperature 250 °C
29000 psi
@Strain 0.2 %,
Temperature 482 °F
 210 MPa
@Strain 0.2 %,
Temperature 200 °C
30500 psi
@Strain 0.2 %,
Temperature 392 °F
 215 MPa
@Strain 0.2 %,
Temperature 100 °C
31200 psi
@Strain 0.2 %,
Temperature 212 °F
 240 MPa
@Strain 0.2 %,
Temperature 20.0 °C
34800 psi
@Strain 0.2 %,
Temperature 68.0 °F
Elongation at Break >= 6.0 %>= 6.0 %Min Design Specification, Longitudinal, T5
 11.3 %11.3 %Extruded Bar, Transverse
 11.5 %11.5 %Extruded Bar, Longitudinal
 11 %
@Temperature 20.0 °C
11 %
@Temperature 68.0 °F
 18 %
@Temperature 100 °C
18 %
@Temperature 212 °F
 22 %
@Temperature 250 °C
22 %
@Temperature 482 °F
 40 %
@Temperature 300 °C
40 %
@Temperature 572 °F
Modulus of Elasticity 44.1 GPa6400 ksi
Poissons Ratio 0.300.30
Fatigue Strength 195 MPa
@# of Cycles 5.00e+6
28300 psi
@# of Cycles 5.00e+6
Axial R=0.1
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000630 ohm-cm0.00000630 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 25.6 µm/m-°C14.2 µin/in-°F
Specific Heat Capacity 0.993 J/g-°C0.237 BTU/lb-°F
Thermal Conductivity 57.6 W/m-K400 BTU-in/hr-ft²-°F
Melting Point 540 - 640 °C1000 - 1180 °F
Solidus 540 °C1000 °F
Liquidus 640 °C1180 °F
 
Component Elements PropertiesMetricEnglishComments
Magnesium, Mg 92.2 - 93.8 %92.2 - 93.8 %As Balance
Rare Earths 2.3 - 3.5 %2.3 - 3.5 %
Yttrium, Y 3.7 - 4.3 %3.7 - 4.3 %
Zirconium, Zr >= 0.20 %>= 0.20 %
 
Descriptive Properties
Corrosion rate<30 mpy
Damping Index0.09

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