Titanium Gr9 (Ti-3Al-2.5V) Pipe and Tube
Oct 20, 2025
What Is Gr9 Titanium
Gr9 (UNS R56320), also referred to as Ti-3Al-2.5V, is a kind of low-alloying near-alpha titanium alloy which has good cold forming properties, welding properties, and high-temperature resistance. Its strength is 20 to 50 percent higher than industrial pure titanium, and it has shown good corrosion resistance in many oxidizing media. Gr9 titanium tubes and plates have become ideal materials for the aerospace and chemical industries.
Type and Size
Welded and seamless tube. Outer diameter 4-114 mm, wall thickness 0.2-4.5 mm, length up to 15 m. Specifications: ASTM B338, ASME SB338, AMS 4943, AMS 4944.
Equivalent Materials
| Type | ASTM | JIS | GOST | DIN | GB |
|---|---|---|---|---|---|
| Ti-3Al-2.5V | Gr9 (UNS R56320) | TAP3250 | OT4-1B | 3.7195 | TA18 |
Chemical Composition (Max, Percent)
C 0.08; Fe 0.25; H 0.015; N 0.03; O 0.15; Al 3.5; V 3.0; titanium balance.
Mechanical Properties
Tensile strength minimum 520 MPa; yield strength (0.2% offset) minimum 483 MPa; elongation at break minimum 15 percent; hardness 160-200 HV.
Applications
Aerospace, chemical industry, processing and chlorate manufacturing, dimensionally stable anodes, and desalination.
Frequently Asked Questions
What is Gr9 titanium? Ti-3Al-2.5V (UNS R56320), a near-alpha titanium alloy with balanced strength, formability, and weldability.
What are the equivalents of Gr9? JIS TAP3250, GOST OT4-1B, DIN 3.7195, and GB TA18.
Where is Gr9 tube used? aerospace tubing, chemical processing, chlorate manufacturing, anodes, and desalination equipment.
What standards and sizes apply to Gr9 tube? Ti-3Al-2.5V (UNS R56320), a near-alpha titanium alloy with balanced strength, formability, and weldability.
What are the mechanical properties of Gr9 tube? JIS TAP3250, GOST OT4-1B, DIN 3.7195, and GB TA18.
Why is Gr9 stronger than pure titanium? aerospace tubing, chemical processing, chlorate manufacturing, anodes, and desalination equipment.
