AMS4975 Ti 6242 Titanium Alloy Bars, Wire, and Rings
- Grade: Ti-6Al-2Sn-4Zr-2Mo, Ti 6242
- Bars, Wire, And Rings
- High Strength and Fatigue Resistance
- Good Fracture Toughness
- Creep Resistance
- Corrosion Resistance
- Heat Treatability
Features
AMS4975 Ti 6242 Titanium Alloy Bars, Wire, and Rings Solution and Precipitation Heat Treated
Chemical Composition (wt.%)
| Element | Weight % |
|---|---|
| Aluminum (Al) | 5.50-6.50% |
| Tin (Sn) | 1.80-2.20% |
| Zirconium (Zr) | 3.60-4.40% |
| Molybdenum (Mo) | 1.80-2.20% |
| Iron (Fe) | Max 0.10% |
| Oxygen (O) | Max 0.15% |
| Carbon (C) | Max 0.05% |
| Nitrogen (N) | Max 0.05% (500 ppm) |
| Hydrogen (H) | Max 0.0125% (125 ppm) |
| Yttrium (Y) | Max 0.005% (50 ppm) |
| Other Elements, each | Max 0.10 |
| Other Elements, total | Max 0.30 |
| Titanium (Ti) | Remainder |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (min) | 130 ksi (896 MPa) |
| Yield Strength (0.2% offset, min) | 120 ksi (827 MPa) |
| Elongation in 2 inches (min) | 10% |
| Reduction of Area (min) | 25% |
| Modulus of Elasticity | 16.5 x 10^6 psi (113.8 GPa) |
Technical Specifications
| Specification | Value |
| Standard | AMS4975 Ti 6242 Titanium Alloy Bars, Wire, And Rings, Solution and Precipitation Heat Treated |
| Grade | Ti-6Al-2Sn-4Zr-2Mo, Ti 6242 |
| 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 VAR melt |
| Type | Forgings |
| 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 | |
| Condition | Bars: Hot finished with or without subsequent cold reduction, solution and precipitation heat treated, and descaled. 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, solution and precipitation heat treated, and descaled. Flash Welded Rings: Solution and precipitation heat treated and, when so specified, descaled. Flash welded rings, when supplied, shall be manufactured in accordance with AMS7498. |
| 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 |
Key Features
High Strength and Fatigue Resistance: Ti-6242 boasts exceptional strength and fatigue resistance, even at elevated temperatures, making it ideal for applications requiring structural integrity and durability under demanding conditions.
Good Fracture Toughness: It exhibits good fracture toughness, resisting crack propagation and sudden failures, ensuring reliability in critical applications.
Creep Resistance: The alloy offers excellent creep resistance, maintaining its dimensional stability under sustained loads at high temperatures.
Corrosion Resistance: It is well-resistant to corrosion in various environments, including seawater, chloride solutions, and some acids.
Heat Treatability: Ti-6242 can be heat treated to enhance its strength and other mechanical properties further.
Packing
Packed in plywood crates or on pallets.
Applications
Aircraft structural components: These are used for wing spars, fuselage frames, landing gear parts, and other critical components requiring a high strength-to-weight ratio, fatigue resistance, and resistance to crack propagation.
Jet engine components: These are employed for compressor discs, blades, shafts, and other engine parts exposed to high temperatures and stresses.
Military aircraft and vehicles: Utilized in structural components and armor for military aircraft, tanks, and other vehicles due to its high strength and ballistic resistance.
Weapon Systems: Employed in various weapon system components requiring high strength and reliability.
High-temperature and high-pressure equipment: This type of equipment is used for reactors, pressure vessels, and other equipment exposed to corrosive chemicals and extreme conditions.
Subsea equipment: Employed in components for subsea oil and gas exploration and production equipment due to its strength and corrosion resistance in seawater environments.
High-performance implants: These are utilized in specialized medical implants requiring high strength and fatigue resistance, such as those used in spinal surgery or joint replacements for active individuals.
Specific applications of AMS 4975
Aircraft landing gear components: Ti-6242 bars are machined into landing gear parts that must withstand high-impact loads and cyclic stresses during takeoff and landing.
Jet engine compressor discs: Ti-6242 rings are forged and machined into compressor discs that operate at high speeds and temperatures within the jet engine.
Subsea wellhead components: Ti-6242 bars manufacture components for subsea wellheads that resist corrosion and maintain structural integrity in deep-sea environments.
