Daxun Alloy's exquisite pure titanium Grade 1 titanium tubes include the following:
Our seamless and welded titanium tubes boast superior ductility and cold formability, making them the ultimate choice for deep drawing applications. Grade 1 titanium tubes excel with their remarkable general and seawater corrosion resistance, and they offer exceptional resistance to oxidizing, neutral, and slightly reducing media - even in chloride-rich environments.
Titanium, with its low density (approximately half that of nickel-based alloys), high strength, lightweight, and unparalleled corrosion resistance, stands as an ideal material for challenging chemical conditions. Our titanium products adhere to execution standards such as ASTM B338, ASTM B265, ASME SB265, ASTM F67, ISO 5832-2, 3.7025, and UNS R50250.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
Grade 2 titanium tubes are the industry go-to, offering a perfect blend of moderate strength and commendable ductility. Their superior resistance to corrosion in highly oxidizing and slightly reducing conditions (including chlorides) makes them indispensable across various sectors. These tubes are pivotal in chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping solutions.
Fabrication
Titanium Grade 2 exhibits excellent responsiveness to cold forming through standard methods. While it can be machined with relative ease, attention to maintaining sharp tools and ample coolant is crucial. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are recommended.
Stock Availability
Daxun Alloys maintains a comprehensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes, available in a wide array of sizes.
Weight Reduction
Renowned for their low density and high strength-to-weight ratio, CP 2 grade titanium tubes are ideal for weight-sensitive applications without compromising overall strength. They offer excellent cold formability and ductility, and can be welded using conventional TIG and MIG processes, provided inert gas shielding is employed to prevent weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 titanium tubes feature an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Around 885°C (1625°F), this structure transitions to a beta (body-centered cubic) form. This transformation temperature may vary due to impurities or alloying elements, which create distinct alpha and beta transformation zones. Grade 2 titanium typically transforms at 890°C (1635°F) for the alpha phase and 913°C (1675°F) for the beta phase.
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium seamless tubes are meticulously crafted through hot extrusion or oblique rolling and piercing processes, followed by extensive cold rolling. Ensuring continuous perimeters throughout manufacturing, the process involves: vacuum arc melting of sponge titanium, obtaining hollow blanks, cleaning, cutting, feeding, hot extrusion or oblique rolling with piercing, degreasing, drying, cutting, online annealing and straightening, pickling, multiple cold rolling stages, vacuum annealing, straightening, cutting, final pickling, and rigorous inspection before marking (DAXUN) 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 plate or steel strip, utilizing the precision of the automatic arc welding (TIG) process. The comprehensive production sequence includes: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, eddy current testing, caliper marking, cutting, ultrasonic testing, hydrostatic testing, final inspection, and packaging. To ensure utmost durability, welded pipes undergo stress relief heat treatment post forming and welding. Daxun prides itself on using no filler materials during the welding process, preserving the integrity of the titanium.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400)
Introduction
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), the epitome of titanium alloy excellence. Renowned as the most popular titanium alloy, this duplex alpha+beta titanium alloy employs aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Capable of withstanding low temperatures around 800°F (427°C), the ATI Ti-6Al-4V, Grade 5 alloy is ideal for annealing, solution treating, and aging. Its applications span across critical aerospace components, including compressor blades, disks, rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and high strength-to-weight ratio forgings.
The initial melting of the alloy is achieved through advanced techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Subsequent remelting is conducted in one or two vacuum arc steps to ensure purity and performance.
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
The Ti-6Al-4V Titanium Tube boasts a melting range of 2,800-3,000°F (1,538 - 1,649°C), exemplifying its resilience and high-temperature performance.
With a density of 0.160 lb/in3 (4.47 g/cm3), it combines strength with lightweight efficiency.
Beta Transus Temperature stands at 1830°F (± 25°) or 999°C (± 14°), ensuring stability under thermal stress.
Heat Treatment
For applications demanding high hardness, tensile strength, and fatigue strength, the alloy is annealed at 1,700-1,900°F (927 - 1,038°C).
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to match varied performance needs.
1. Annealing: Performed at 1,275 -1,400°F (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: Conducted at 1,000 -1,200°F (538 - 649°C) for 1 to 8 hours, then air or furnace cooled.
3. Solution Heat Treating: Executed at 1,675 -1,750°F (913 - 954°C) for 1 hour, with water quenching.
4. Aging: Carried out at 975 -1,025°F (524 - 552°C) for 4 to 8 hours, followed by air cooling.
Optimum Properties
Solution treated and aged conditions yield optimal properties in small cross sections with rapid quenching. Larger cross-sections or delayed quenching might result in slightly less than optimal properties.
Hardness
In the annealed condition, typical hardness ranges from Rockwell C 30-34, and in the solution and aged condition, it ranges from approximately Rockwell C 35-39.
Forgeability/Formability
The DAXUN Ti-6Al-4V Titanium Tube, also known as Grade 5 Titanium Tube, is expertly forged at a high temperature of 1,750°F (954°C) with a final forging phase at 1,450°F (788°C). For optimal performance, a reduction of at least 35% is highly recommended to ensure the highest quality results.
While the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, presents challenges for forming at room temperature-even when annealed-it excels under specific conditions. Severe forming operations like bending or stretching can be efficiently executed on annealed material at elevated temperatures up to 1,200°F (649°C) without impacting its mechanical properties. For hot sizing or forming, creep forming techniques can be utilized at temperature ranges between 1,000°F and 1,200°F (538°C to 649°C).
Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, can be effectively machined using methods suitable for austenitic stainless steels. Optimal results are achieved with slow speeds, high feeds, and robust tool rigidity, complemented by the use of substantial amounts of non-chlorinated cutting fluids.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, showcases excellent weldability in both its annealed and solution plus partially aged states.
Post-weld heat treatment facilitates aging, ensuring superior results. However, precautions are essential to prevent contamination from oxygen, nitrogen, and hydrogen. Fusion welding should be carried out in an inert gas-filled chamber or with an inert gas tail shield to protect the molten metal and adjacent hot areas. Additionally, spot welding, seam welding, and flash welding can be performed without the need for a protective atmosphere.
Special Considerations
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, requires careful handling to prevent contamination from hydrogen during improper pickling, and from oxygen, nitrogen, and carbon during forging, heat treating, brazing, and similar processes. Such contamination can detrimentally affect ductility, notch sensitivity, and formability.
Audited Supplier 
){kind=link}
){kind=link}