Technical guide · 2026-08-14
Beta Titanium
Metastable-beta titanium alloys retain beta after solution treatment and develop high strength through aging, enabling complex forming or high-strength forgings but demanding tight heat-treatment and section-uniformity control.
01
Definition and boundary
Covers beta-rich heat-treatable alloys; excludes alpha-beta alloys when their mixed-phase condition is the governing design basis.
Reference information only: final acceptance is controlled by the ordered product specification, condition, dimensions and certified test results.
02
How the material system works
Beta stabilizers suppress transformation during quench.
Aging precipitates fine alpha for strength.
Section size and quench delay change retained beta and response.
03
Representative grades and systems
| Grade or system | Selection focus | Qualification |
|---|---|---|
| Ti-10V-2Fe-3Al | High-strength forging alloy with controlled solution/age route. | Confirm the governing product specification, delivery condition, section size and acceptance tests before treating designations as interchangeable. |
| Ti-15V-3Cr-3Sn-3Al | Cold-formable metastable-beta sheet alloy. | Confirm the governing product specification, delivery condition, section size and acceptance tests before treating designations as interchangeable. |
| Beta-C / Ti-3Al-8V-6Cr-4Mo-4Zr | High-strength corrosion-resistant beta system. | Confirm the governing product specification, delivery condition, section size and acceptance tests before treating designations as interchangeable. |
04
Properties and trade-offs
Very high heat-treated strength
Formability in solution-treated state
Section-sensitive aging response
05
Product forms and supply conditions
06
Applications and selection
Applications and selection
- Landing gear components
- High-strength springs
- Complex formed aerospace sheet
Properties and trade-offs
- Choose alloy around forming-before-aging route.
- Validate quench response in production section.
- Check toughness and stress-corrosion limits at target strength.
07
Fabrication, durability and inspection
Hold solution temperature uniformly.
Minimize transfer delay before quench.
Verify aging furnace uniformity and final hardness map.
08
Procurement checklist
- State solution-treated or aged delivery condition.
- Define section, quench route and aging window.
- Require hardness uniformity, tensile orientation and fracture/NDT criteria.
09
Standards, sources and review
Standards and designation context
- Applicable ASTM B10 titanium product specification
- Buyer drawing and approved material condition
- Qualified inspection and certification plan