AMS4924 Ti5Al2.5Sn ELI Titanium Alloy Bars, Forgings, and Rings
- Grade: Ti5Al2.5Sn ELI
- Annealed condition
- High Ductility and Fracture Toughness
- Good Strength and Cold Workability
- Corrosion Resistance
- Biocompatibility
AMS4924 Ti5Al2.5Sn ELI Titanium Alloy Bars, Forgings, and Rings, Annealed
AMS4924 Ti-5Al-2.5Sn ELI Titanium Alloy Bars, Forgings, and Rings from Golden Sunbird Metals are high-quality titanium products engineered for applications that demand exceptional strength, toughness, and reliable performance in low-temperature or critical service environments. As an Extra Low Interstitials (ELI) grade, AMS4924 offers improved ductility, fracture toughness, and structural consistency compared with standard grades, making it especially suitable for aerospace, defense, marine, and other advanced engineering industries. This near-alpha titanium alloy is valued for its excellent corrosion resistance, high strength-to-weight ratio, and stable mechanical properties, supporting both precision machining and demanding structural applications. AMS4924 Ti-5Al-2.5Sn ELI bars, forgings, and rings are widely used in components where material purity, traceability, and dependable performance are essential. At Golden Sunbird Metals, we supply premium titanium alloy products with strict quality control and dimensional accuracy to help customers meet exacting technical requirements with confidence.
Chemical Composition (wt.%) of AMS4924 Ti5Al2.5Sn ELI Titanium Alloy Bars, Forgings, and Rings
| Element | Min | Max |
| Aluminum | 4.70 | 5.60 |
| Tin | 2.00 | 3.00 |
| Iron | — | 0.25 |
| Oxygen | — | 0.12 |
| Oxygen + Iron | — | 0.32 |
| Carbon | — | 0.05 |
| Nitrogen | — | 0.035 (350 ppm) |
| Hydrogen | — | 0.0125 (125 ppm) |
| Yttrium (3.1.1) | — | 0.005 (50 ppm) |
| Other Elements, each (3.1.1) | — | 0.05 |
| Other Elements, total (3.1.1) | — | 0.40 |
| Titanium | remainder | |
Mechanical Properties (Annealed Condition) of AMS4924 Ti5Al2.5Sn ELI Titanium Alloy Bars, Forgings, and Rings
| Property | Value |
|---|---|
| Tensile Strength | 828 MPa (120 ksi) minimum |
| Yield Strength (0.2% Offset) | 759 MPa (110 ksi) minimum |
| Elongation in 2 inches (50mm) | 10% minimum |
| Reduction of Area | 20% minimum |
Features
- AMS4924 / Ti-5Al-2.5Sn ELI / Grade 6 ELI alpha titanium alloy bars, forgings, and rings in annealed condition.
- Extra Low Interstitial (ELI) composition provides significantly higher ductility and fracture toughness compared to standard Ti-5Al-2.5Sn, with superior resistance to crack propagation.
- Excellent cold workability and formability, enabling complex shapes through cold rolling, bending, and intricate fabrication processes.
- Outstanding cryogenic toughness and mechanical property retention at extremely low temperatures, ideal for liquid hydrogen and propellant systems.
- Strong corrosion resistance in seawater, chloride solutions, acids, and other aggressive industrial environments.
- Good biocompatibility making it suitable for long-term medical implant applications.
- Excellent weldability using standard titanium techniques with minimal post-weld heat treatment requirements.
- Cost-effective high-performance alpha alloy offering balanced strength and superior damage tolerance for critical applications.
- Available in a wide range of forms: bars, wire, forgings, rings, and flash-welded rings to meet aerospace, medical, and cryogenic needs.
Technical Specifications
| Specification | Value |
| Standard | AMS4924 Ti5Al2.5Sn Titanium Alloy Bars, Forgings, and Rings, Annealed |
| Grade | 5Al-2.5Sn ELI, Ti5Al2.5Sn ELI |
| Melting Practice | Alloy shall be multiple melted. The first melt shall be made by vacuum consumable electrode, nonconsumable electrode, electron beam cold hearth, or plasma arc cold hearth melting practice. The subsequent melt or melts shall be made using vacuum arc remelting (VAR) practice. Alloy additions are not permitted in the final melt cycle. |
| 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 | 4.48g/cm³ |
| Condition | Bars: Hot finished with or without subsequent cold reduction, annealed, and descaled. Bar shall be processed to the final thickness/diameter by metallurgical working operations prior to any straightening, dimensional sizing, or surface finishing operations. Bar shall not be cut from plate. Wire: Cold drawn, annealed, and descaled. Forgings and Flash Welded Rings: Annealed and descaled. Flash welded rings shall not be supplied unless specified or permitted on purchaser’s part drawing. When supplied, they shall be manufactured in accordance with AMS7498 |
| 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
- Critical aircraft structural components including landing gear parts, airframe forgings, brackets, fasteners, and spars where high fracture toughness and fatigue resistance are required.
- Cryogenic storage tanks, vessels, and systems for liquid hydrogen, oxygen, and rocket propellant containment demanding excellent low-temperature ductility.
- Medical implants and devices such as hip and knee joint replacements, spinal implants, bone plates, and dental fixtures utilizing superior biocompatibility and toughness.
- Surgical instruments and tools requiring high strength, precision, corrosion resistance, and enhanced damage tolerance.
- Subsea oil and gas equipment including valves, manifolds, and components exposed to high-pressure seawater where crack propagation resistance is critical.
- Chemical processing equipment such as tanks, piping, and vessels in corrosive environments needing high ductility and reliability.
- Aerospace engine casings, rings, and non-rotating structural parts requiring good weldability and stability at moderate temperatures.
- Precision forgings, rings, and high-performance engineering assemblies in aerospace, medical, and cryogenic sectors after proper qualification and heat treatment.
