...

GAT115D is a Gulfstream Aerospace (General Dynamics) specification calling for "TITANIUM AND TITANIUM ALLOY, SHEET, PLATE, AND STRIP"

Gulfstream designs, develops, manufactures, markets, and services business jet aircraft. It is most famous for its G600 and its newer version G650 which has been setting World records for private jet aircraft. 

 

Like other Tier 1 Aerospace Manufacturers, Gulfstream Aerospace has its own set of quality requirements for materials and GAT115D is specific to Plate, Sheet, and Strip for 6Al-4V under the now retired MIL-T-9046 Specification which was replaced by AMS-T-9046 and more recently altogether replaced by AMS 4911. Fighter Jet Metals provides Plate, Sheet, and Strip for 6Al-4V Titanium, that corresponds to the GAT115D specification for aerospace manufacturers and OEMs.

GAT115D, GAT115D, FIGHTER JET METALS