AMS4930 Ti6Al4V ELI Bars, Forgings and Rings
- Grade: Ti6Al4V ELI, Grade 23
- Annealed condition
- Bar, Rings, Forgings
- High Ductility and Fracture Toughness
- Good Strength and Fatigue Resistance
- Corrosion Resistance
- Biocompatibility
- Heat Treatability
Features
AMS4930 Ti6Al4V ELI Titanium Alloy Bars, Forgings and Rings, Annealed
Chemical Composition (wt.%) of AMS4930 Ti6Al4V ELI Bars, Wire, Forgings, and Rings
| Element | Min | Max |
| Aluminum | 5.50 | 6.50 |
| Vanadium | 3.50 | 4.50 |
| Iron | — | 0.25 |
| Oxygen | — | 0.13 |
| Carbon | — | 0.08 |
| Nitrogen | — | 0.05 (500 ppm) |
| Hydrogen | — | 0.0125 (125 ppm) |
| Yttrium (see 3.1.1) | — | 0.005 (50 ppm) |
| Other Elements, each (see 3.1.1) | — | 0.10 |
| Other Elements, total (see 3.1.1) | — | 0.40 |
| Titanium | Remainder | |
Mechanical Properties of AMS4930 Ti6Al4V ELI Bars, Forgings and Rings
| Nominal Diameter or Distance Between Parallel Sides (Millimeters) | Tensile Strength (MPa) | Yield Strength at 0.2% Offset (MPa) | Elongation in 4D (%) Long. | Elongation in 4D (%) L.T. | Elongation in 4D (%) S.T. | Reduction of Area (%) Long. | Reduction of Area (%) L.T. | Reduction of Area (%) S.T. |
| Up to 38.10, incl. | 862 | 793 | 10 | 10 | — | 25 | 20 | — |
| Over 38.10 to 50.80, incl. | 827 | 758 | 10 | 10 | — | 20 | 15 | — |
| Over 50.80 to 63.50, incl. | 827 | 758 | 8 | 8 | — | 15 | 15 | — |
| Over 63.50 to 101.60, incl. | 827 | 758 | 8 | 8 | 8 | 15 | 15 | 15 |
Note:
Long. = Longitudinal
L.T. = Long-Transverse
S.T. = Short-Transverse
Technical Specifications
| Specification | Value |
| Standard | AMS4930 Ti6Al4V ELI Titanium Alloy Bars, Wire, Forgings, and Rings, Annealed |
| Grade | Ti6Al4V ELI, Grade 23 |
| 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 | 4.51g/cm³ |
| Condition | Bars: Hot finished with or without subsequent cold reduction, annealed, and descaled. A machined or ground surface is permitted unless prohibited by purchaser. The product 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, rings shall be manufactured in accordance with AMS7498. Stock for Forging or Flash Welded Rings: As ordered by the forging or flash welded ring manufacturer |
| 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 |
Key Features
High Ductility and Fracture Toughness: Compared to standard Ti6Al4V, the ELI variant exhibits significantly higher ductility and fracture toughness, meaning it can withstand more significant deformation and resist crack propagation more effectively. This is particularly important in applications involving cyclic loading, impact loading, or the risk of stress concentrations.
Good Strength and Fatigue Resistance: While slightly less intense than standard Ti-6Al-4V, Ti-6Al-4V ELI still offers excellent strength and fatigue resistance, making it suitable for demanding structural applications.
Corrosion Resistance: It retains the excellent corrosion resistance of Ti-6Al-4V, performing well in various environments, including seawater, chloride solutions, and some acids.
Biocompatibility: Ti-6Al-4V ELI is biocompatible and suitable for medical implants and devices.
Heat Treatability: Similar to Ti-6Al-4V, the ELI variant can be heat treated to further improve its strength and other mechanical properties.
Packing
Packed in plywood boxes.
Applications
Critical aircraft structural components: These are used for parts like landing gear components, airframe structures, and fasteners where high strength, fatigue resistance, and fracture toughness are crucial.
Engine components: These are employed for parts exposed to high stresses and cyclic loading, such as compressor blades and discs.
Implants: It is particularly suitable for implants requiring high fatigue resistance and ductility, such as hip and knee joint replacements, spinal implants, and bone plates.
Surgical instruments: Utilized for instruments requiring strength, corrosion resistance, and precision.
Subsea equipment: Employed for components in subsea oil and gas exploration and production equipment where resistance to crack propagation and fatigue is critical.
High-performance bicycle frames and components: Ti-6Al-4V ELI’s strength, lightweight, and fatigue resistance combination make it ideal for high-end bicycle applications.
