Magnesium Alloy HM21A

Technical Data Sheet

Chemical Composition Limits
Weight % Al Zn Mn Zr Th Rare Earth Other Specific Gravity
Magnesium Alloy
- - 0.45 - 1.1 - 1.5 - 2.5 - 0.30 1.77

Magnesium Alloy HM21A is available in sheet, plate and forging stock. For all stock and size availability contact Sales.

AMS 4363 - HM21A - T5 Forgings
AMS 4383 - HM21A - T81 Sheet and Plate (solution heat treated, cold worked and precipitation heat treated)
AMS 4390 - HM21A - T8 Sheet and Plate (as per AMS 4383)


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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.