This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE, as of January 2010 and no superseding specification is identified. By this taction, this document will remain listed in the Numercial Section of the Index of Aerospace Material Specifications, noting that it has been cancelled.
This specification covers an aluminum alloy in the form of sand castings. Primarily for components operating up to 600 °F (315 °C).
Alloy 243.0 is no longer in use; its registration was cancelled in 1995.