Product Code:SAE MAM4208 Title:Aluminum Alloy, Sheet, 6.0cu 0.40zr, as Rolled (Cancelled Mar 2003) Issuing Committee:Ams D Nonferrous Alloys Committee Scope:This specification covers an aluminum alloy in the form of sheet, procured to inch/pound dimensions and properties. Primarily for parts requiring a high degree of formability (superplasticity) and response to heat treatment.