DATASHEET • 490 † -1 -1 K K -1 -1 -6 K -1 m Ω

3.7 – 4.3%3.7 2.3 – 3.5% 0.2% min Balance 1.83 25.6 x 10 57.6 Wm 57.6 993 Jkg 148 n 44.1 GPa 0.3 540 – 640˚C 0.09 70 – 90 (28.2 MPa ksi) 195 ksi) (43.9 303MPa 6% Specific gravity Coefficient of thermal expansion Chemical composition Rare earths Zirconium Heat treatment Extruded Elektron 43 develops its maximum strength in the artificially heat treatedaged condition.(T5) Physical properties Thermal conductivity Specific heat Electrical resistivity Modulus of elasticity Poisson’s ratio Melting range Damping index Brinell hardness Design data Longitudinal – Specification minima statistical)(A-basis Extruded – T5 0.2% proof Ultimate tensile strength Elongation

43 Extruded Products 43 Extruded ®

bothextrusions and plate. MMPDS-08 (and later versions) – Including full A and B basis statistical analysis of properties for Specifications AMS 4485 – Extrusion – Extrusion and B107M ASTM B107 UNS M18434 ASTM WE43C Designations in aircraft seat frames does not reduce the level of safety of the aircraft when compared heavier to seat components. testing by the Federal Aviation Administration (FAA). The FAA have shown that the use of Elektron 43 associated with elevated temperature performance. Elektron 43 has undergone extensive flammability The properties of Elektron 43 mean it is well suited for use as feedstock material from which machine to performancehigh especially those components, Elektron 43 is an optimised wrought evolution of theoriginal casting Elektron , WE43. 30% lighter than a corresponding aluminium design. Elektron 43 is available as rolled plate, forging profile. and section bar, extruded and feedstock for use at temperatures up to Designs in Elektron 43250˚C. can be 20% to Applications Elektron 43 is a light, high strength wrought Elektron 140 120 100 80 60 40 20 0 414 MPa 345 MPa 276 MPa 207 MPa 138 MPa 69 MPa % 11 22 300 Elongation 100,000,000 250 200 Tensile strength 350 (50.8) 350 268 (38.9) MPa (ksi)MPa 1,000,000 150 Temperature (˚C) Cycles of Failure 100,000 100 (ksi) 200 (29.0) 240 (34.8) stress MPa 0.2% proof 0.2% UTS (MPa) 0.2% Yield stress (MPa) Elongation (%) 50 10,000 R = -1.00 R = 0.10 R = 0.50 Runouts 0 20˚C 0 250˚C 1,000 50

0

350 300 250 200 150 100 20 10 60 50 40 30 Strength (MPa) Strength Maximum Stress, ksi Stress, Maximum ASTM E466ASTM axial fatigue R=0.1 at 50 million cycles MPa = 195 Other R ratios are shown in the graph below. Extruded bar – Fatigue properties Figure 3. Figure 2. Elevated temperature properties temperature Elevated 1.400 % % 11.5 11.3 1.200 Compression Tension Elongation Elongation

1.000 0.800 Tensile Tensile 352 (51.0) 352 strength strength 305 (44.2) MPa (ksi)MPa MPa (ksi)MPa Strain (%) 0.600 0.400 0.200 183 (26.5) 243 (34.8) 243 0.000 0.2% proof 0.2% 0.2% proof 0.2% 0 50

200 150 100 350 300 250 stress (ksi) MPa (MPa) Strength Yield stress (ksi) MPa Figure 1. Asymmetry is when the tensile yield strength is greater than the compressive yield strength due to thetwinning behaviour. Elektron 43 has reduced asymmetrycompared other to magnesium alloys. Asymmetry of properties of Asymmetry Extruded bar – Transverse Extruded bar – Longitudinal values up 300 to 0.2% MPa PS ksi); (43.5 MPa 375 UTS (54.4 ksi); and elongation have been of 11% demonstrated. tensile propertiesTypical Ambient temperature mechanical properties properties T5 for extruded Elektron 43 are strength Tensile profile. extruded upon dependent

DATASHEET • 490 † DATASHEET • 490 † MADE IN THE U.K. Certificate No. FM12677 Certificate No.

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, Tagnite ® , amongst, others. 160/161, Surtec ® MG 0611, Gardobond MG 0611, ® ® The information contained within is meant as a guideline only guideline a as meant is within contained information The Lumns Lane, Manchester, M27 8LN, UK 1000T +44 911 161 (0) Luxfer MEL Technologies MEL Luxfer Elektron Technology Centre Copyright © Luxfer MEL Technologies 2018. The information provided within thisother document interested is aimed parties to assist in manufacturers the use of magnesium and alloys. Luxfer MEL Technologiesinterpretation accepts no of liability the data herein. in whole All information or in part from is use given and in good faithassumed. but without Health warranty. and Freedom Safety from information patent rights is available must not be for all Luxfer MEL Technologies products. Discover more at at more Discover † Like allLike magnesium alloys, Elektron 43 can be painted following techniques conventional using coated or pre-treatment. MagPass free are also available. These include: Alodine Oxsilan amongst others. Conversion coatings that are Hexavalent chromium Surface treatment Elektron 43 canbe anodised with treatments Keronite including: Corrosion < 30 rate mpy faster than any other metal. Corrosion resistance Machining Elektron 43, like all magnesium alloys, machines well forging to – please see Magnesium Elektron information sheet, available on the website, for the forging of Elektron 43. Forging Elektron 43 is a high strength alloy that responds specification Please AMS 4371. see Magnesium Datasheet 492. Elektron Other properties Plate Elektron 43 rolled plate is available and has