GR9 titanium alloy possesses a series of advantages, including high specific strength, excellent corrosion resistance, low density, and good toughness and weldability.<sup>1</sup> After solution strengthening treatment, the strength of this titanium alloy increases, but the increase is not significant; the strength in the annealed state is generally around 900 MPa, while the strength after treatment can reach 1100 MPa.
GR9 titanium alloy has been successfully applied in aerospace, petrochemical, shipbuilding, automotive, and pharmaceutical industries, thanks to its unique combination of properties. For example, in the aerospace field, the lightweight and high-strength characteristics of GR9 titanium alloy make it an ideal material for manufacturing aircraft and spacecraft components; in the petrochemical field, its excellent corrosion resistance enables it to resist the erosion of various corrosive media.
Manufacturing Process
Our ASTM B338 GR9 Tube is produced using precision-controlled manufacturing steps to ensure uniformity and reliability:
Billet Preparation – Titanium alloy billets are forged and inspected for internal defects.
Extrusion or Rotary Piercing – The billet is formed into a hollow tube.
Cold Drawing – Achieves final dimensions and enhances mechanical properties.
Annealing – Heat treatment for optimal ductility and reduced residual stresses.
Surface Finishing – Pickling or polishing to ensure a smooth, defect-free surface.
Final Inspection – Ultrasonic, eddy current, and hydrostatic testing according to ASTM B338.
Chemical Composition
| Chemical Composition Limits | ||||||||||
| Weight % | Ti | C | Fe | N | Al | O | V | H | Y | Other |
| Titanium Ti3Al2.5V | bal | 0.05 | 0.30 | 0.02 | 2.5 / 3.5 | 0.12 | 2.0 / 3.0 | 0.015 | 0.005 | 0.40 total |
Typical Mechanical Properties
| Material | Tensile Strength min | Yield Strength min | Elongation (%) | ||
| ksi | Mpa | ksi | MPa | ||
| Titanium Alpha-Beta Alloy Ti-3Al-2.5V | 90 | 621 | 75 | 517 | 15 |
Titanium Grade 9 Seamles Tubes Surface Finish
| Surface Finish | Internal Surface(ID) | Exterbal Surface(OD) | |||
| Roughness Average(RA) | Roughness Average(RA) | ||||
| μ inch | μm | μ inch | μm | ||
| EP | Electro Polish | 15,10,7,5 | 0.38,0.25,0.20;0.13 | 32 | 0.8 |
| MP | Mechanical Polish | 40,32,25,20 | 1.0,0.8,0.6,0.5 | 32 | 0.8 |
| BA | Beight Annealed | 40,32,25,20 | 1.0,0.8,0.6,0.5 | 32 | 0.8 |
| AP | Annealed & Pickled | Not defined | Not defined | 40 or Not defined | 1.0 or Not defined |
about us
We are a leading manufacturer and exporter specializing in Titanium and Titanium Alloy products. Our company is dedicated to providing a comprehensive range of high-quality titanium solutions for demanding global industries such as Aerospace, Chemical Processing, Medical, Marine Engineering, Power Generation, and Sports Equipment.
Our core export portfolio encompasses the full spectrum of wrought titanium products, including:
Titanium Tubes & Pipes: From precision Thin-Walled Titanium Tubes for heat exchangers to robust Thick-Walled Titanium Pipes for high-pressure applications.
Titanium Plates & Sheets: Supplied as Titanium Plates for heavy-duty construction and Titanium Sheets / Titanium Foils for precise manufacturing.
Titanium Bars & Rods: We supply Titanium Bars, Titanium Rods, and Titanium Wires in various diameters and finishes.
Titanium Fasteners: A complete range of Titanium Fasteners including bolts, nuts, and studs.
We expertly process all common grades to meet diverse operational requirements, including:
Commercially Pure Titanium: Gr1, Gr2
Titanium Alloys: Gr5 (Ti-6Al-4V), Gr7, Gr9 (Ti-3Al-2.5V), Gr12
Our production and quality assurance strictly adhere to international standards such as ASTM B265, ASTM B337, ASTM B338, ASTM B348, ASME SB-363, and AMS 4902, ensuring superior performance, excellent corrosion resistance, and high strength-to-weight ratio in every product.
Leveraging our advanced manufacturing expertise and stringent quality control, we are your trusted global partner for reliable, high-performance titanium materials.
