Product Code:SAE AMS4177 Title:Core, Flexible Honeycomb, Aluminum Alloy, for Sandwich Construction, 5056, 350 (177) Issuing Committee:Ams D Nonferrous Alloys Committee Scope:This specification covers an aluminum alloy in the form of honeycomb core in a non-hexagonal, flexible cell configuration, the core being treated for increased corrosion resistance and furnished only in the expanded form.