'''AJ alloys''' ('''AJ52''' and '''AJ62''') are die castable alloys of magnesium that have good creep resistance at high temperature. They contain manganese, aluminium, and strontium.<ref>{{cite book | title = Magnesium: Proceedings of the 7th International Conference on Magnesium Alloys and Their Applications | chapter = Advances in Magnesium Injection Molding (Thixomolding) | author = M. Scharrer | editor = K. U. Kainer | publisher = Wiley-VCH | year = 2007 | isbn = 978-3-527-31764-6 | page = 252 | chapter-url = https://books.google.com/books?id=WIGLNjp0MKMC&dq=aj62+aj+alloys+magnesium&pg=PA252 |display-authors=etal}}</ref>
In the names the 'J' refers to Strontium.
Alloy Mg Al% Sr% Mn% AJ62 Balance 6 2 0.34 <ref>http://www.archivesmse.org/vol28_6/2865.pdf {{Webarchive|url=https://web.archive.org/web/20110725013413/http://www.archivesmse.org/vol28_6/2865.pdf |date=2011-07-25 }}. MSE AJ62</ref> AJ52 Balance 5 2 0.4 <ref>{{cite web|url=http://iweb.tms.org/Mg/magtech2002/018.pdf |title=Archived copy |accessdate=2009-09-03 |url-status=dead |archiveurl=https://web.archive.org/web/20110728113020/http://iweb.tms.org/Mg/magtech2002/018.pdf |archivedate=2011-07-28 }}</ref>
AJ52 has higher creep resistance, and AJ62 has better castability. Both are used in the BMW magnesium–aluminium composite engine block.<ref>{{cite book | title = Metallurgy and Processing of High-Integrity Light Metal Pressure Castings | author = Helmut Kaufmann and Peter J. Uggowitzer | publisher = Fachverlag Schiele & Schoen | year = 2007 | isbn = 978-3-7949-0754-0 | page = 197 | url = https://books.google.com/books?id=Rdj05GwqHFgC&dq=aj62+aj+alloys+magnesium&pg=PA197 }}</ref>
==References== <references/>
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Category:Aluminium–magnesium alloys Category:Manganese alloys Category:Strontium