Understanding Titanium Groups: From Unalloyed to Beta Alloys

As a leading manufacturer in titanium processing, we present a comprehensive guide to titanium alloy classifications. Understanding these groups is crucial for selecting the right material for your specific application.

1. Unalloyed (Commercially Pure) Titanium

Unalloyed titanium, also known as Commercially Pure (CP) titanium, contains 99.0-99.5% titanium content. The remaining composition consists of controlled amounts of iron and interstitial elements (hydrogen, nitrogen, carbon, and oxygen).

Key Characteristics:

• Microstructure: Predominantly alpha phase grains
• Cost-effective compared to alloyed grades
• Superior fabricability and weldability
• Excellent corrosion resistance
• Lower strength compared to alloyed grades

Common Grades and Applications:

• CP Grade 1 (UNS R50250): Chemical processing, desalination
• CP Grade 2 (UNS R50400): Heat exchangers, marine applications
• CP Grade 3 (UNS R50550): Pressure vessels
• CP Grade 4 (UNS R50700): Medical implants, aerospace components

2. Alpha and Near-Alpha Alloys

These alloys contain alpha stabilizers such as aluminum, tin, and oxygen, resulting in enhanced strength while maintaining excellent corrosion resistance.

Key Characteristics:

• Excellent high-temperature performance
• Superior weldability
• Good creep resistance
• Optimal performance in cryogenic applications

Notable Examples:

• Ti-5Al-2.5Sn: Classic alpha alloy for cryogenic applications
• Ti-8Al-1Mo-1V: High-temperature aerospace components
• Ti-6Al-2Sn-4Zr-2Mo: Near-alpha alloy for elevated temperature service

3. Alpha-Beta (α+β) Alloys

The most widely used titanium alloy group, combining both alpha and beta stabilizers to achieve an optimal balance of properties.

Key Features:

• Heat treatable for various microstructures
• Excellent balance of strength and ductility
• Good fabricability
• Moderate to high strength levels

Premier Alloys:

• Ti-6Al-4V: The most common titanium alloy worldwide
  • Aerospace structures
  • Medical implants
  • Chemical processing equipment
• Ti-6Al-6V-2Sn: Higher strength variant
• Ti-6Al-2Sn-4Zr-6Mo: Advanced aerospace applications

4. Beta (β) Alloys

Beta alloys contain sufficient beta stabilizers to maintain a fully beta phase microstructure upon cooling.

Distinguished Properties:

• Highest strength-to-weight ratios
• Excellent formability
• Superior hardenability
• High fracture toughness

Prominent Examples:

• Ti-3Al-8V-6Cr-4Mo-4Zr: High-strength fasteners
• Ti-10V-2Fe-3Al: Aircraft structural components
• Ti-13V-11Cr-3Al: Aerospace applications

Manufacturing Capabilities and Quality Assurance

Our facility specializes in processing all titanium groups with:

• Advanced melting and processing equipment
• Comprehensive testing facilities
• Full range of product forms
• ISO 9001:2015 certification
• AS9100D aerospace certification
• Complete material traceability

Expert Consultation and Support

Our metallurgical team provides:

• Material selection guidance
• Technical documentation
• Processing recommendations
• Custom solution development
• Competitive pricing strategies

Why Choose Our Titanium Products?

• 30+ years of processing experience
• State-of-the-art manufacturing facilities
• Comprehensive quality control systems
• Global delivery capabilities
• Technical support throughout your project
• Competitive pricing and flexible MOQ

Contact our technical team today to discuss your specific titanium requirements. Our expertise in all titanium groups enables us to recommend the optimal grade for your application, ensuring both performance and cost-effectiveness.