Daxun Alloy's pure titanium Grade 1 titanium tubes include:
Our seamless and welded titanium tubes, crafted from the finest Grade 1 titanium, boast unparalleled ductility and cold formability, making them perfect for deep drawing applications. Known for their superior resistance to general and seawater corrosion, these tubes also excel in withstanding oxidizing, neutral, and slightly reducing media (including chlorides).
Titanium's exceptional qualities-low density (approximately half of nickel-based alloys), remarkable strength, lightweight nature, and outstanding corrosion resistance-make it the material of choice for various demanding chemical environments. Our titanium tubes adhere to rigorous standards: ASTM B338 | ASTM B265 | ASME SB265 | ASTM F67 | ISO 5832-2 | 3.7025 | UNS R50250.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
Grade 2 titanium tubes are renowned in industrial sectors for their optimal balance of medium strength and excellent ductility. These tubes offer superior corrosion resistance in both highly oxidizing and slightly reducing environments, including exposure to chlorides. They are indispensable in chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, CPI equipment, and piping for industrial and aerospace applications.
Fabrication
Titanium Grade 2 exhibits exceptional responsiveness to cold forming by standard methods. It is highly machinable, provided sharp tools are maintained and a generous supply of coolant is used. Cutting should be deep and continuous, with slow feeds and speeds, akin to machining austenitic stainless steels.
Stock Availability
Daxun Alloys offers an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes to meet diverse application needs.
Weight Reduction
With a low density and high strength-to-weight ratio, CP 2 Grade titanium tubes are ideal for applications requiring weight reduction without compromising strength. These tubes are easily cold formable, exhibit good ductility, and can be welded using conventional TIG and MIG processes, although inert gas shielding is essential to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes share an alpha (hexagonal close-packed) crystal structure, similar to commercially pure grades 1 and 3. At approximately 885°C (1625°F), this structure transforms into a beta (body-centered cubic) form. The transformation temperature can vary with the type and concentration of impurities or alloying elements. These alloying additions create two distinct temperature zones: the alpha transformation zone (below which the alloy is fully alpha) and the beta transformation zone (above which the alloy is fully beta). Between these temperatures, both alpha and beta forms coexist. Typical transformation temperatures for Grade 2 titanium are approximately 890°C (1635°F) and 913°C (1675°F).
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium seamless tubes are meticulously crafted from hollow blanks through hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling stages. These tubes maintain continuous perimeters throughout the manufacturing process. Key steps include vacuum arc melting of titanium sponge, blanking to obtain hollow blanks, cleaning, cutting, feeding, hot extrusion, oblique rolling and piercing, degreasing, drying, cutting, online annealing, straightening, pickling, multiple cold rolling, degreasing, drying, vacuum annealing, final straightening, cutting, pickling, comprehensive inspection, DAXUN marking, and packaging.
Grade 2 Titanium Welded Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium welded pipe is meticulously crafted from annealed flat-rolled steel plates or strips using the precision automatic arc welding (TIG) process. The key production stages include: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, subsequent eddy current testing, caliper marking, cutting, ultrasonic testing, hydrostatic testing, final inspection, and packaging. Post-formation and welding, the welded pipes undergo a mandatory stress relief heat treatment. Daxun ensures the use of optimal filler materials during the welding process.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) stands as the most eminent titanium alloy. This duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Exhibiting high-strength, this alloy remains operational at temperatures as low as 800°F (427°C). ATI Ti-6Al-4V, Grade 5 is employed for annealing, solution treating, and aging processes. Its extensive applications include compressor blades, disks, and rings for jet engines; fuselage and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and critical forgings requiring an impressive strength-to-weight ratio.
The alloy is initially melted via vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting follows through one or two vacuum arc steps to ensure purity and consistency.
Specifications
• ASTM B338 - Standard Heat Treatable Titanium Tube
• AMS 4928 - Forgings and Forging Stock (Annealed)
• AMS 4965 - Forgings (Solution Treated and Aged)
• AMS 4967 - Forgings (Annealed, Heat Treatable)
Physical Properties
Ti-6Al-4V Titanium Tube Melting Range: 2,800-3,000°F (1,538 - 1,649°C)
Density: 0.160 lb/in3; 4.47 g/cm3
Beta Transus Temperature: 1830°F (± 25°); 999°C (± 14°)
Heat Treatment
The titanium tube is annealed at 1,700-1,900°F (927 - 1,038°C) when high hardness, tensile strength, and fatigue strength are crucial.
DAXUN 6-4 Grade 5 Titanium Tube offers various heat treatment methods.
1. Annealing: 1,275 -1,400°F (691 - 760°C) for ½ to 2 hours, cooled by air or furnace.
2. Stress Relief Annealing: 1,000 -1,200°F (538 - 649°C) for 1 to 8 hours, cooled by air or furnace.
3. Solution Heat Treating: 1,675 -1,750°F (913 - 954°C) for 1 hour, water quenched.
4. Aging: 975 -1,025°F (524 - 552°C) for 4 to 8 hours, air cooled.
Optimum Properties
Small cross sections achieve rapid quenching in the solution-treated and aged state. Larger cross-sections or delayed quenching may result in suboptimal properties.
Hardness
Typical hardness ranges from Rockwell C 30-34 in the annealed condition to approximately Rockwell C 35-39 in the solution and aged condition.
Forgeability/Formability
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, meticulously forged at a high temperature of 1,750°F (954°C) with a final precision forging temperature set at 1,450°F (788°C). For optimal results and unparalleled performance, a reduction of at least 35% is highly recommended, ensuring superior strength and durability.
Discover the unique properties of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube. This robust material is notably challenging to form at room temperature, even when annealed. However, it excels in severe forming operations such as bending or stretching when performed on the annealed material at elevated temperatures up to 1,200°F (649°C), preserving its mechanical integrity. Experience the advantages of creep forming for hot sizing or forming, efficiently executed within a temperature range of 1,000 to 1,200°F (538 to 649°C).
Enhanced Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube offers excellent machinability akin to austenitic stainless steels. Through the application of slow speeds, high feeds, and robust tool rigidity, coupled with generous use of non-chlorinated cutting fluids, you can achieve precise and efficient machining results.
Superior Weldability
The DAXUN Ti-6Al-4V Titanium Tube Grade 5 Titanium Tube demonstrates exceptional weldability whether in the annealed or solution and partially aged conditions. This ensures reliable and consistent performance during the welding process.
During post-weld heat treatment, aging is accomplished with stringent precautions to prevent contamination from oxygen, nitrogen, and hydrogen. Fusion welding can be performed within an inert gas-filled chamber or utilizing an inert gas tail shield to protect the molten metal and adjacent hot zones. Additionally, spot welding, seam welding, and flash welding can be conducted without the need for a protective atmosphere.
Essential Special Considerations
When working with DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, it is crucial to be aware of potential contamination risks. Hydrogen contamination may occur from improper pickling, while oxygen, nitrogen, and carbon absorption can happen during processes such as forging, heat treating, and brazing. Such contamination can adversely affect ductility and increase notch sensitivity, thereby impairing formability.
Audited Supplier 
){kind=link}