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AMS 4965
AMS 4965 – Ti-6Al-4V Titanium Bars, Wire, Forgings & Rings (Solution Heat Treated & Aged)
Overview
AMS 4965 covers Ti-6Al-4V (6Al-4V) supplied as bars, wire, forgings, and flash-welded rings in the solution heat treated and aged (STA) condition. With high strength-to-weight, stable alpha-beta microstructure, and excellent toughness, AMS 4965 is widely used for aerospace and high-performance industrial hardware.
Why Engineers Choose AMS 4965
High specific strength → STA heat treatment delivers elevated tensile & yield properties for weight-critical designs
Consistent microstructure → tight control of alpha-beta phase for predictable performance
Excellent corrosion resistance in marine and chloride environments
Multiple forms: bar, wire, rings, and forging stock for near-net manufacturing
Chemical Composition (Nominal Limits – Ti-6Al-4V)
| Element | Nominal Limit |
|---|---|
| Aluminum (Al) | 5.5–6.75% |
| Vanadium (V) | 3.5–4.5% |
| Iron (Fe) | ≤ 0.30% |
| Oxygen (O) | ≤ 0.20% |
| Carbon (C) | ≤ 0.08% |
| Nitrogen (N) | ≤ 0.05% |
| Hydrogen (H) | Typically ≤ 0.0125% |
| Yttrium (Y) | ≤ 0.005% |
| Titanium (Ti) | Balance |
Final chemistry per purchase order and melt cert.
Mechanical Performance (Solution Treated & Aged)
Ultimate Tensile Strength: approx. 130–165 ksi (depends on size/heat lot)
Yield Strength (0.2%): approx. 120–155 ksi
Elongation: approx. 6–10%
Reduction of Area: approx. 20–25%
Use supplied MTRs for final design values; properties vary with section, orientation, and processing route.
Product Forms & Size Range
Round Bar & Wire – small & medium diameters for high-strength fasteners, linkages, shafts
Flash-welded Rings – for rotating aerospace hardware
Closed-die Forgings – near-net shapes for structural / rotating parts
Forging Stock – supplied for downstream open/closed-die operations
Quality & Acceptance (Per Purchase Order)
Chemical composition and microstructure verification
Tensile testing in specified orientations
Surface contamination controls for titanium processing
Fracture toughness / NDT (UT) per drawing or PO requirements
Applications
Aerospace – airframe joints, actuators, landing gear elements, rings/rotor components
Defense – high-strength linkages and housings
Motorsport – hubs, drivetrain, suspension, lightweight rotating hardware
Energy & Marine – corrosion-resistant hardware in weight-sensitive systems
AMS 4965 vs Related Specifications
| Spec | Condition / Form | Where It Fits |
|---|---|---|
| AMS 4965 | Ti-6Al-4V, STA; bars, wire, forgings, rings | Highest strength range for weight-critical rotating/structural parts |
| AMS 4928 | Ti-6Al-4V, annealed; bars, wire, forgings, rings | Balanced ductility/formability; machining & hot forming before later heat treat |
| AMS-T-9047 | Historic Ti alloy spec | Reference for legacy prints; often superseded |
Rule of thumb: AMS 4965 for maximum strength in finished parts; AMS 4928 when parts require machining/forming before heat treat.
Fabrication Notes
Weldable by TIG/EB with strict shielding and cleanliness; post-weld heat treat per process plan
Machining requires sharp tooling, proper coolant, and controlled speeds to manage heat & work-hardening
Forming/forging must follow temperatures suitable for alpha-beta alloys; avoid oxygen pickup
Titanium Metals specializes in high-quality titanium materials and components for critical industries. Every product is manufactured with precision, tested for strength, corrosion resistance, and purity.
We deliver premium-grade titanium metals engineered for high performance and long-term reliability. Every product is manufactured with strict quality controls, precise dimensions, and flawless finishing to match international standards.
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