AMS 4979 - 6Al-6V-2Sn Titanium Alloy Forgings (STA)
AMS 4979 is the specification for 6Al-6V-2Sn Titanium Alloy forgings in the solution treated and aged (STA) condition. The controlled grain flow of forgings combined with the high strength of the 6Al-6V-2Sn STA condition makes AMS 4979 forgings the premier choice for the most critically stressed aerospace structural components where fatigue and fracture toughness are primary design concerns.
STA forgings per AMS 4979 are used in wing main frames, fuselage bulkheads, engine pylon fittings, and other primary structure attachments on high-performance military aircraft where maximum strength and fatigue life are required.
6Al-6V-2Sn titanium alloy offers higher strength than 6Al-4V in the solution treated and aged condition, making it the preferred choice for the most highly stressed aerospace structural applications where standard 6Al-4V STA cannot meet design requirements.
Applications of AMS 4979 6Al-6V-2Sn Titanium
- Wing Main Frame Forgings
- Fuselage Bulkhead Forgings
- Engine Pylon and Attachment Fittings
- Primary Structure Fatigue-Critical Hardware
- Military Aircraft Structural Forgings
AMS Titanium Specifications
SAE AMS material specifications for 6Al-6V-2Sn titanium alloy covering bars, billets, forgings, sheet, and strip for aerospace structural and engine applications.
Boeing / McDonnell Douglas Material Specifications
Boeing and McDonnell Douglas DMS and MMS material specifications for 6Al-6V-2Sn titanium alloy for Boeing, Douglas, and St. Louis aerospace programs.
Gulfstream Material Specifications
Gulfstream Material Specifications (GMS) for 6Al-6V-2Sn titanium alloy for Gulfstream business jet aerospace structural programs.
Certified Material for Critical Service
Materials supplied in 6Al-4V titanium must meet strict aerospace certification and traceability requirements. Fighter Jet Metals supports sourcing across a wide range of AMS, MIL, and OEM specifications, ensuring compliance with industry standards.
All material is supplied with full mill certifications, complete heat-lot traceability, and detailed documentation. This ensures reliability and suitability for safety-critical aerospace, defense, and high-performance engineering applications.