AMS4966 Ti5Al2.5Sn Titanium Alloy Forgings
- Grade: Ti5Al2.5Sn
- Forgings
- Moderate Strength and Good Ductility
- Excellent Cold Workability
- Good Weldability
- Corrosion Resistance
- Lower Cost
AMS4966 Ti5Al2.5Sn Titanium Alloy Forgings, Annealed
AMS4966 Ti-5Al-2.5Sn Titanium Alloy Forgings from Golden Sunbird Metals are high-quality titanium forged products designed for aerospace, defense, marine, and other high-performance industrial applications. This near-alpha titanium alloy is valued for its excellent strength-to-weight ratio, outstanding corrosion resistance, and reliable performance in elevated-temperature environments. AMS4966 Ti-5Al-2.5Sn forgings offer strong structural integrity, good fatigue resistance, and dependable mechanical stability, making them suitable for critical components that must perform under demanding service conditions. The alloy is widely used in applications where durability, lightweight construction, and long-term reliability are essential. At Golden Sunbird Metals, we supply premium titanium alloy forgings with strict attention to quality control, material traceability, and dimensional accuracy, helping customers meet stringent technical requirements with confidence. For projects that demand proven titanium performance and consistent material reliability, AMS4966 Ti-5Al-2.5Sn is a trusted solution.
Chemical Composition (wt.%) of AMS4966 Ti5Al2.5Sn Titanium Alloy Forgings
| Element | Min | Max |
| Aluminum | 4.00 | 6.00 |
| Tin | 2.00 | 3.00 |
| Iron | – | 0.50 |
| Oxygen | – | 0.20 |
| Carbon | – | 0.08 |
| Nitrogen | – | 0.05 (500 ppm) |
| Hydrogen | – | 0.020 (200 ppm) |
| Yttrium (3.1.1) | – | 0.005 ( 50 ppm) |
| Other Elements, each (3.1 .1) | – | 0.10 |
| Other Elements, total (3.1.1 ) | – | 0.40 |
| Titanium | remainder | |
Mechanical Properties of AMS4966 Ti5Al2.5Sn Titanium Alloy Forgings
| Yield Strength | 110 ksi (758 MPa) minimum |
| Tensile Strength | 120 ksi (827 MPa) minimum |
| Elongation | 10% minimum |
| Reduction of Area | 20% minimum |
| Hardness | 25 HRC maximum |
| Modulus of Elasticity | 15 x 10^6 psi (103 GPa) |
| Poisson’s Ratio | 0.34 |
Features
- AMS4966 / Ti-5Al-2.5Sn / Grade 6 alpha titanium alloy forgings.
- Moderate strength combined with excellent ductility in the annealed condition for reliable structural performance.
- Superior cold workability and formability, enabling complex shapes through cold rolling, bending, and other fabrication processes.
- Excellent weldability using standard titanium welding techniques with minimal post-weld heat treatment requirements.
- Strong corrosion resistance in seawater, chloride solutions, acids, and other demanding environments.
- Retains good ductility and toughness at cryogenic temperatures, ideal for low-temperature service.
- Cost-effective alternative to higher-strength titanium alloys while maintaining high strength-to-weight ratio.
- Good strength retention and stability at elevated temperatures up to approximately 480°C / 896°F.
- Available in forgings, bars, rings, wire, and blocks to meet diverse aerospace and industrial needs.
Technical Specifications
| Specification | Value |
| Standard | AMS4966 Ti5Al2.5Sn Titanium Alloy Forgings Annealed, 110 Ksi (758 MPa) Yield Strength |
| Grade | Ti-5Al-2.5Sn |
| Type | Bar, Wire, Forgings, Rings |
| Dimension | Bar Dia: 0.25 to 12 inches (6.35 to 304.8 mm), Length up to 20 feet (6096 mm) |
| Wire Dia: 0.020 to 0.500 inches (0.51 to 12.7 mm) | |
| Block: Width: 2 – 24 inches (50 -610mm) x Height: 2 – 24 inches (50-610mm) x Length: 2 – 20 feet (610-6100mm) | |
| Rings: OD: 250-1500mm, ID: 150-1400mm, Height: 20-500mm | |
| Density | 4.51g/cm³ |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical Composition, Mechanical Properties |
Applications
- Aircraft structural components such as brackets, fittings, and airframe forgings requiring moderate strength and excellent formability.
- Aerospace hydraulic tubing and fluid system components where corrosion resistance and fabricability are critical.
- Chemical processing equipment including tanks, vessels, and piping systems exposed to corrosive media.
- Marine hardware and components for seawater environments demanding lightweight, corrosion-resistant forgings.
- Medical implants and biocompatible devices utilizing the alloy’s moderate strength and excellent fabricability.
- Cryogenic storage tanks and vessels that must maintain ductility and toughness at extremely low temperatures.
- Non-critical jet engine structural forgings and airframe assemblies where weldability and cost-effectiveness matter.
- Industrial forged parts requiring a balanced combination of strength, corrosion resistance, and lightweight design after proper qualification and heat treatment.
