Magnesium Alloy HK31A

Technical Data Sheet

Chemical Composition Limits
Weight % Al Zn Mn Zr Th Rare Earth Other Specific Gravity
- - - 0.45 - 1.0 2.45 - 4.0 - 0.30 1.79

Typical Mechanical Properties

Material Thickness " Tensile Strength ksi Yield Strength ksi Elongation in 4D (%)
Magnesium Alloy HK31A - H24
0.125 - 0.25 34 24 4
Magnesium Alloy HK31A - H24 0.25 - 1.0 34 25 4
Magnesium Alloy HK31A - H24 1.0 - 3.0 33 25 4

Magnesium Alloy HK31A is available in Plate and Sheet. For all stock and size availability contact Sales.

AMS 4384 - HK31A-0 Sheet, Plate (annealed and re-crystallized
AMS 4385 - HK31A - H24 Sheet, Plate (cold rolled and partially annealed)
AMS 4445 - HK31A - T6 Sand castings

At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

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Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.