BMS7-245 - Titanium Alloy 6Al-2Sn-4Zr-2Mo Aerospace Specification
BMS7-245 is Boeing’s material specification for 6Al-2Sn-4Zr-2Mo titanium alloy in bar form, forging stock, and forgings used in the aerospace industry. This document contains detailed requirements for chemical composition, processing history, mechanical properties, and inspection to ensure that the material meets Boeing’s stringent requirements for its aircraft and aerospace systems.
Fighter Jet Metals works with Forge Houses to maintain the BMS7-245 specification for 6Al-2Sn-4Zr-2Mo. If you are currently managing a project that requires BMS7-245 please reach out to us so we can assist.
Applications of BMS7-245 Titanium
Titanium alloys produced to BMS7-245 requirements are typically used in aerospace components where strength, fatigue resistance, and reliability are critical.
Typical applications include:
- Aircraft Structural Components – load-bearing airframe structures and reinforcement parts
- Gas Turbine Engine Hardware – compressor components, structural supports, and high-temperature mechanical parts
- Forged Aerospace Components – precision forged parts used in high-stress aircraft assemblies
Boeing Quality Requirement
BMS stands for “Boeing Material Specification” and originate from Boeing’s headquarters in Seattle, WA. For more information on BMS7-245 please refer to:
D1-4426 Approved Process Lists
As a Tier 1 Aerospace company, Boeing holds its subcontractors to the same standards by ensuring they source BMS7-245 from approved sources. This creates accountability and ensures the highest quality standards are achieved in the manufacturing process.
6Al-2Sn-4Zr-2Mo SPECIFICATIONS
BARS & FORGINGS
Semi-finished bars and forged shapes for high-strength, load-bearing aerospace components.
SHEET & PLATE
Flat products for structural and skin applications in aerospace, providing corrosion resistance and high strength.
GULFSTREAM SPECIFICATIONS
Manufacturer standards for Gulfstream aircraft components.
OTHER OEM SPECIFICATIONS FOR (6-2-4-2) Titanium
GE AVIATION
Additional GE AVIATION-specific titanium standards for aerospace applications.
PRATT & WHITNEY
Additional PRATT & WHITNEY-specific titanium standards for aerospace applications.
ADDITIONAL MILITARY SPECIFICATIONS
Military-grade titanium alloy standards for defense and aerospace use.
Certified Material for Critical Service
Aerospace programs demand strict compliance with recognized material standards and OEM aerospace specifications. Fighter Jet Metals supplies (6-2-4-2) Titanium in accordance with major AMS, MIL, Boeing, Gulfstream, and other aerospace manufacturer specifications.
All material is delivered with complete mill test reports, heat-lot traceability, and full documentation, ensuring compliance with the quality requirements of aerospace, defense, and other critical engineering applications.