High-Strength Titanium for Demanding Applications
Titanium 6-2-4-6, also known as Ti-6Al-2Sn-4Zr-6Mo or Ti-6246, is a high-strength alpha-beta titanium alloy developed for applications where strength, toughness and performance at elevated temperatures are critical.
The alloy can be heat-treated to achieve higher strength levels than more commonly used titanium alloys, including Ti-6Al-4V. Its ability to develop strength through larger sections makes it particularly suitable for heavily loaded aerospace, energy and high-performance engineering components.
At Ti-Tek, we can help you source Titanium 6-2-4-6 in the form and dimensions required for your application. Contact our team to discuss availability, specifications and lead times.
What Is Titanium 6-2-4-6?
Titanium 6-2-4-6 takes its name from its principal alloying elements:
- 6% aluminium
- 2% tin
- 4% zirconium
- 6% molybdenum
- Balance titanium
The combination of these elements produces an alloy with excellent strength, hardenability and fracture resistance. It can be processed and heat-treated to meet the requirements of highly stressed components operating in challenging environments.
Key Properties of Titanium 6-2-4-6
High Strength
Ti-6246 can be heat-treated to achieve very high tensile strength. Its greater hardenability also allows enhanced mechanical properties to be achieved through larger component sections.
Excellent Strength-to-Weight Ratio
Like other titanium alloys, Titanium 6-2-4-6 combines high mechanical strength with relatively low density. This makes it a valuable material where component weight needs to be reduced without compromising performance.
Elevated-Temperature Performance
The alloy retains useful mechanical strength and stability at elevated operating temperatures, making it suitable for selected applications operating at temperatures of approximately 450°C.
Fatigue and Fracture Resistance
Depending on its processing route and final heat-treatment condition, Ti-6246 can provide excellent low-cycle fatigue performance, fracture toughness and resistance to fatigue-crack growth.
Corrosion Resistance
Titanium 6-2-4-6 provides good resistance to corrosion in a variety of aggressive environments. This can include marine and selected oil and gas applications, subject to the exact operating conditions and material specification.properties. This enables engineers to select the most appropriate balance of strength, ductility and toughness for the finished component.
Titanium 6-2-4-6 Applications
The combination of high strength, low weight and thermal stability makes Ti-6246 suitable for demanding applications across several industries.
Aerospace
Titanium 6-2-4-6 is widely associated with highly stressed aircraft and gas-turbine engine components, including:
- Compressor discs
- Compressor blades
- Intermediate compressor components
- Engine seals
- Rotating components
- High-strength structural parts
Oil and Gas
The alloy may be specified for selected oil and gas components operating under high mechanical loads or in corrosive environments, including certain sour-service applications.
Suitability must always be assessed against the required material specification and operating conditions.
High-Performance Engineering
Ti-6246 can also be used for specialist industrial components that require:
- High tensile strength
- Low component weight
- Good fracture toughness
- Resistance to repeated loading
- Stability at elevated temperatures
Titanium 6-2-4-6 Supply
Material requirements can differ considerably between projects. Rather than limiting your options to a published list of stock sizes, Ti-Tek can source Titanium 6-2-4-6 in a range of forms and dimensions to meet specific requirements.
Our team will review the grade, form, dimensions, quantity, specification and certification required before confirming availability and lead time.
If the material you need is not immediately available, we can normally explore suitable sourcing options through our established supply network.
Why Choose Ti-Tek?
Ti-Tek is an established UK supplier of titanium and other specialist high-performance metals. We support customers across aerospace, motorsport, oil and gas, petrochemical and advanced engineering industries.
Customers choose Ti-Tek for:
- Expert knowledge of titanium and specialist alloys
- Material sourced from approved producers and suppliers
- Full material traceability where required
- Responsive sourcing of specialist grades and dimensions
- Cutting and processing services
- Support with specifications and material requirements
- ISO 9001, AS9100 and AS9120 quality approvals
Titanium 6-2-4-6 FAQs
Ti-6246 can be heat-treated to achieve higher strength levels than Ti-6Al-4V. It also offers greater hardenability, allowing high strength to be developed through larger component sections. The best alloy will depend on the application, required specification and operating environment.
The alloy is primarily used for highly stressed aerospace and engineering components. Typical applications include compressor discs, blades, seals and structural parts requiring high strength, fatigue resistance and elevated-temperature performance.
Yes. Ti-6246 is a heat-treatable alpha-beta titanium alloy. Different processing and heat-treatment routes can be used to develop the balance of strength, toughness and fatigue performance required for the component.
We do not publish a fixed list of dimensions because requirements vary and availability can change. If the form or size you require is not currently held, we can normally investigate sourcing it quickly through our established supply network.
Certification and traceability can be supplied according to the material ordered and the applicable specification. Please include your certification requirements when requesting a quotation.
Discuss Your Titanium 6-2-4-6 Requirements
Contact Ti-Tek with the form, dimensions, quantity, specification and certification you require. Our team will confirm availability, lead time and pricing or help source a suitable solution for your project.