Ti-5Al-2.5Sn (Grade 6 Titanium) represents a specialized near-alpha alloy developed for applications demanding stability at elevated temperatures, reliable weldability, and consistent performance in cryogenic environments. While not as commercially prevalent as Ti-6Al-4V (Grade 5), this alloy serves critical roles in aerospace, cryogenic systems, and specialized industrial equipment where its balanced composition-5% aluminum for strength and 2.5% tin for microstructural stability-provides distinct advantages in thermal and mechanical integrity.
Chemical Analysis of Titanium Grade 6/Titanium 5Al-2.5Sn
Titanium Grade 6 Specifications
Fabrication, Machining & Welding Guide
Forming
Better hot formability than Grade 5
Hot forming recommended for thick sections
Lower springback than α-β alloys
Machining
Lower cutting speeds recommended
Sharp carbide tools required
Efficient cooling essential
Welding
Excellent weldability with argon shielding
TIG and plasma welding preferred
Minimal post-weld heat treatment required
Heat Resistance & Thermal Properties
Maximum continuous service temperature: ~450°C
Excellent oxidation resistance
Low thermal expansion
High resistance to thermal fatigue
Comparison: Grade 5 vs Grade 6 Titanium Alloy
| Property | Grade 5 (Ti-6Al-4V) | Grade 6 (Ti-5Al-2.5Sn) |
|---|---|---|
| Alloy Type | α-β | Near-α |
| Room-Temp Strength | Higher | Slightly Lower |
| High-Temp Stability | Moderate | Excellent |
| Creep Resistance | Moderate | Superior |
| Typical Use | General aerospace | High-temp aerospace |
Quality Assurance & Certifications
EN 10204 3.1 / 3.2 MTC
Full chemical & mechanical testing
Ultrasonic & surface inspection
ISO 9001 quality system
Heat number traceability
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Q1: Is Grade 6 stronger than Grade 5?
No, but it performs better at high temperatures.
Q2: Can Grade 6 replace Grade 5?
Only in high-temperature applications where creep resistance is critical.
Q3: Is Ti-5Al-2.5Sn weldable?
Yes, it has excellent weld stability.
Q4: Is Grade 6 suitable for seawater?
Yes, corrosion resistance is excellent.
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We place great emphasis on the transportation safety and delivery quality of our products. All titanium materials are packaged using strict industrial-grade solutions: titanium tubes and bars undergo anti-rust treatment, are tightly wrapped with waterproof stretch film, and then placed in reinforced wooden or iron boxes lined with moisture-proof paper, with fillers added to prevent sliding and collisions during transportation. Titanium plates and strips are covered with protective film, fitted with edge protectors, separated layer by layer with moisture-proof paper, loaded onto sturdy wooden or steel pallets, and securely fastened with steel straps. Fine titanium wires are neatly coiled onto specialized spools and encapsulated in sealed boxes that are waterproof and dustproof. Each packaging unit is accompanied by clear product labels, material certificates, and moisture-proof indicators, ensuring that the goods remain intact, clearly labeled, and safely delivered to global customers through long-distance sea freight and multimodal transportation.
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