Product Description
Product Description
Overview
AMS 6931 Titanium 6Al-4V Bar is a high-strength alpha-beta titanium alloy offering an exceptional combination of strength, low weight, and corrosion resistance. This aerospace specification covers annealed titanium alloy bars for structural and high-temperature applications. Supplied in annealed condition, Ti-6Al-4V bar stock is ideal for aerospace, medical, and high-performance industrial applications requiring round, rectangular, or hexagonal bar configurations. Contact us today for availability and pricing on your AMS 6931 Titanium 6Al-4V bar requirements.
Chemical Composition
| Aluminum | Vanadium | Iron (max) | Oxygen (max) | Carbon (max) | Nitrogen (max) | Hydrogen (max) | Titanium |
|---|---|---|---|---|---|---|---|
| 5.5 – 6.75% | 3.5 – 4.5% | 0.30% | 0.20% | 0.08% | 0.05% | 0.015% | Balance |
Mechanical Properties (Annealed Condition)
| Condition | Tensile Strength (KSI) | Yield Strength (KSI) | % Elongation | Reduction of Area % |
|---|---|---|---|---|
| Annealed | 130 min | 120 min | 10 min | 25 min |
Alternative Names & Designations
Ti-6Al-4V Annealed, Ti 6-4, Grade 5 Titanium, UNS R56400, 3.7165, WT 1.4965, AMS 4928, ASTM B348 Grade 5
Key Applications for AMS 6931 Titanium 6Al-4V Bar
Aerospace & Defense:
• Aircraft structural components and machined parts
• Jet engine components (shafts, fasteners, casings)
• Landing gear components and actuators
• High-strength aerospace fasteners and fittings
• Rotor hubs and transmission components
• Helicopter drive shafts
Medical & Biomedical:
• Surgical instruments and tools
• Orthopedic implants and prosthetics
• Dental implant abutments
• Medical device components
• Bone screws and plates
Industrial & Marine:
• Chemical processing equipment and valves
• Marine hardware and propeller shafts
• High-performance racing parts
• Pressure vessel components
• Oil and gas industry applications
• Automotive performance components
Manufacturing:
• Machined aerospace components
• Precision turned parts
• Custom fabricated components
Features & Benefits
Superior Material Performance
• Excellent strength-to-weight ratio (40% lighter than steel)
• Outstanding corrosion resistance in most environments
• Good weldability and formability
• Excellent fatigue resistance and crack propagation resistance
• Biocompatible for medical applications
• Non-magnetic properties
• Proven aerospace heritage
Processing Advantages
• Heat treatable for enhanced properties through STA (Solution Treat and Age)
• Good machinability compared to other titanium alloys
• Available in multiple bar configurations (round, rectangular, hex)
• Excellent elevated temperature performance (up to 400°C / 750°F)
• Minimal thermal expansion
• Can be further processed to higher strength conditions
Why Choose Flight Metals for AMS 6931?
Flight Metals stocks AMS 6931 Titanium 6Al-4V Annealed Bar in various sizes and configurations to meet your specifications. Our material is certified to AMS 6931 standards and backed by full material traceability documentation. As a trusted supplier of aerospace-grade titanium, we provide technical support, competitive pricing, and fast delivery on your Ti-6Al-4V bar requirements. We maintain extensive inventory for quick turnaround on standard sizes.
Frequently Asked Questions
What is AMS 6931 titanium bar used for?
AMS 6931 titanium 6Al-4V annealed bar is primarily used in aerospace applications for aircraft structural components, jet engine parts, landing gear, and high-strength fasteners. It’s also widely used in medical devices, surgical instruments, and chemical processing equipment.
What is the difference between AMS 6931 and AMS 4928?
Both AMS 6931 and AMS 4928 cover titanium 6Al-4V bar in annealed condition. AMS 6931 specifically covers annealed bar, while AMS 4928 covers bar, wire, forgings, and rings. The specifications have similar requirements with some differences in testing and documentation.
What configurations are available for AMS 6931 bar?
AMS 6931 titanium bar is available in round, rectangular (square), and hexagonal configurations in various sizes to meet your machining and manufacturing requirements.
Can AMS 6931 be heat treated after purchase?
Yes, AMS 6931 titanium in annealed condition can be heat treated through solution treating and aging (STA) to achieve higher strength levels for specific applications. The annealed condition provides good formability and machinability before heat treatment.
Is AMS 6931 the same as Grade 5 titanium?
Yes, AMS 6931 specifies Ti-6Al-4V alloy, which is also known as Grade 5 titanium. This is the most commonly used titanium alloy worldwide, accounting for more than 50% of total titanium usage.
What is the difference between annealed and STA condition?
Annealed (AMS 6931) provides good ductility and machinability with tensile strength of 130 KSI minimum. STA (Solution Treated and Aged) condition provides higher strength, typically 160+ KSI, but with reduced ductility. Material can be purchased annealed and heat treated later.
Does AMS 6931 meet ASTM B348 requirements?
Yes, AMS 6931 material typically meets or exceeds ASTM B348 Grade 5 requirements. AMS specifications generally have additional testing and quality requirements beyond ASTM standards.
Technical Resources
For complete specifications, refer to:
• AMS 6931: Aerospace Material Specification for Titanium 6Al-4V Annealed Bar
• AMS 4928: Alternative aerospace specification for Titanium 6Al-4V Bar, Wire, Forgings, and Rings
• ASTM B348: Standard specification for titanium and titanium alloy bars and billets
• AMS T-9047: Military specification for titanium alloy bars
Disclaimer
This data is provided for informational purposes only and should not replace full material specifications. Mechanical property requirements vary with temper, product form, and dimensions. While this information is compiled from recognized sources including AMS and ASTM standards and industry references, no guarantee is provided regarding accuracy or currency of data. Users should verify all critical information with applicable specifications and conduct appropriate testing for their specific applications. Flight Metals accepts no liability for actions taken based solely on this information.
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