MS 344 - 6Al-4V Titanium Alloy (Lockheed Martin)
MS 344 is the Lockheed Material Standard for 6Al-4V Titanium Alloy, used on Lockheed Martin aerospace programs requiring the MS 344 designation on engineering drawings. This specification covers the procurement requirements for 6Al-4V titanium in various product forms for Lockheed Martin structural applications.
MS 344 and MS 342 are companion specifications in the Lockheed Material Standards series for 6Al-4V titanium, covering slightly different product forms or condition requirements. Both are cross-referenceable with the corresponding SAE AMS specifications and are commonly listed as acceptable alternatives on Lockheed drawings.
6Al-4V is recommended for use at temperatures from -350° to 750°F (-210° to 400°C). Applications outside this temperature range are possible in certain situations. The alloy is weldable. Complex shapes can be made via hot forming. It machines like an austenitic stainless steel.
Applications of MS 344 6Al-4V Titanium
- Aircraft Turbine Engine Components
- Aircraft Structural Components
- Aerospace Fasteners
- Formula 1 Parts
- Medical Devices
- Marine Applications
- Ship Propellers
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.