MMS 1203 - 6Al-6V-2Sn Titanium Alloy Sheet and Plate (Boeing St. Louis)
MMS 1203 is the Boeing Material Specification (formerly McDonnell Douglas St. Louis MMS series) for 6Al-6V-2Sn Titanium Alloy sheet and plate for aerospace structural applications. Developed for the McDonnell Douglas St. Louis defense aircraft programs (F-15, F/A-18), MMS 1203 specifies the material quality, testing, and documentation requirements for 6Al-6V-2Sn titanium sheet and plate used in Boeing defense aircraft primary structures.
Sheet and plate per MMS 1203 are called out on Boeing defense aircraft engineering drawings where 6Al-6V-2Sn titanium sheet product forms are required for high-strength structural applications on fighter aircraft and military programs.
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 MMS 1203 6Al-6V-2Sn Titanium
- Boeing Defense Aircraft Structural Panels
- F-15 and F/A-18 Sheet Metal Structures
- High-Strength Titanium Sheet Assemblies
- Military Fighter Primary Structure
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-6V-2Sn 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.