Daxun Alloy's Impeccable Pure Titanium Grade 1 Tubes include:
Our seamless and welded titanium tubes exhibit outstanding ductility and cold formability, making them perfect for deep drawing applications. Known for their superb general and seawater corrosion resistance, Grade 1 titanium tubes also excel in oxidizing, neutral, and slightly reducing media (solutions), including chlorides.
Thanks to titanium's low density (approximately half that of nickel-based alloys), high strength, lightweight nature, and corrosion resistance, it is an exceptional choice for challenging chemical environments. The execution standards we adhere to are: 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)
The most commonly utilized titanium tube for industrial purposes, Grade 2 offers a fantastic balance of moderate strength and reasonable ductility. Its excellent corrosion resistance in highly oxidizing and slightly reducing conditions (including chlorides) makes it a reliable choice for chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and pipes.
Fabrication
Titanium Grade 2 excels in cold forming using standard methods. While machining, it's crucial to maintain sharp tools and use liberal amounts of coolant. Similar to machining austenitic stainless steels, the cuts should be deep and continuous employing slow feeds and speeds.
Stock Availability
Daxun Alloys proudly stocks an extensive range of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes, ensuring we meet your specific requirements.
Weight Reduction
With a low density and high strength-to-weight ratio, CP 2 grade titanium tubes are perfect for applications demanding weight reduction without compromising strength. These tubes are cold formable, exhibit excellent ductility, and can be welded using conventional TIG and MIG methods, albeit with inert gas shielding to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tube boasts an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Around 885°C [1625°F], it transitions to a beta (body-centered cubic) structure. This transformation temperature varies with impurities or alloying additions, dividing the equilibrium transformation temperature into two distinct zones: the alpha transformation zone (below which the alloy is all alpha) and the beta transformation zone (above which the alloy is all beta). Between these, both alpha and beta forms coexist. Typical transformation temperatures for grade 2 titanium are 890°C (1635°F) and 913°C (1675°F) for alpha and beta, respectively.
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium seamless tubes undergo a meticulous process starting with hollow blanks made via hot extrusion or oblique rolling and piercing. This is followed by multiple cold rolling stages. Each stage ensures the tube's continuous perimeter. The comprehensive manufacturing process includes sponge titanium vacuum arc melting, ingot blanking to create hollow blanks, cleaning, cutting, feeding, hot extrusion or oblique rolling and piercing, degreasing, drying, cutting, online annealing and straightening, pickling, multiple cold rolling, degreasing, drying, vacuum annealing, straightening, cutting, pickling, final inspection, 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 using state-of-the-art automatic arc welding (TIG) process. The comprehensive production processes encompass: uncoiling the titanium plate, 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. Each welded pipe undergoes at least one stress relief heat treatment post-formation and welding. Importantly, Daxun ensures the usage of any filler materials during the welding process.
Introducing the 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 pinnacle of titanium alloys. This duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Renowned for its high strength, this alloy is effective at low temperatures, approximately up to 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is extensively utilized for annealing, solution treating, and aging. It is ideal for applications such as compressor blades, disks, and rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and other critical forgings requiring a high strength-to-weight ratio.
The alloy's initial melting is conducted using advanced methods like vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Subsequent remelting occurs in one or two vacuum arc steps.
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 boasts a 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
Annealing at temperatures of 1,700-1,900°F (927 - 1,038°C) is recommended when high hardness, tensile strength, and fatigue strength are necessary.
DAXUN's 6-4 Grade 5 Titanium Tube can undergo diverse heat treatment methods.
1. Annealing: Conducted at 1,275 - 1,400°F (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: Carried out at 1,000 - 1,200°F (538 - 649°C) for 1 to 8 hours, with air or furnace cooling.
3. Solution Heat Treating: Executed at 1,675 - 1,750°F (913 - 954°C) for 1 hour with a water quench.
4. Aging: Performed at 975 - 1,025°F (524 - 552°C) for 4 to 8 hours, followed by air cooling.
Optimum Properties
Achieve optimum properties with small cross sections and rapid quenching in the solution-treated and aged condition. Larger cross-section sizes or delayed quenching may lead to suboptimal properties.
Hardness
Typical hardness ranges from Rockwell C 30-34 in the annealed condition to approximately Rockwell C 35-39 in the solution-treated and aged condition.
Forgeability/Formability
Experience the unparalleled strength and resilience of DAXUN Ti-6Al-4V Titanium Tube, Grade 5. This high-performance titanium tube is meticulously forged at a searing 1,750°F (954°C) with a final forging precision temperature of 1,450°F (788°C). To achieve optimal performance, a reduction of at least 35% is recommended, ensuring the highest standards of durability and reliability.
Discover the engineering marvel of DAXUN Ti-6Al-4V Titanium Tube, Grade 5, known for its formidable difficulty in forming at room temperature, even when annealed. For complex operations such as bending or stretching, tackle the challenge by performing these tasks on annealed material at elevated temperatures up to 1,200°F (649°C) to maintain mechanical integrity. Utilize creep forming for precise hot sizing or forming within a temperature range of 1,000 to 1,200°F (538 to 649°C), ensuring flawless results.
Machinability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5, boasts machinability akin to austenitic stainless steels, enabling precise machining with optimized methodologies. Employ slow speeds and high feeds, coupled with robust tool rigidity and an abundance of non-chlorinated cutting fluids, to achieve superior machining outcomes.
Weldability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5, offers exceptional weldability in both annealed and solution-aged conditions. This tube's adaptability simplifies the welding process, while aging can be seamlessly integrated into post-weld heat treatment protocols.
Diligent precautions are paramount to prevent contamination with oxygen, nitrogen, and hydrogen during welding. Fusion welding should be conducted within an inert gas-filled chamber or with an inert gas tail shield to safeguard against impurities. Techniques such as spot welding, seam welding, and flash welding can be efficiently performed without a protective atmosphere, ensuring high-quality welding results.
Special Considerations
Attention to detail is crucial when working with DAXUN Ti-6Al-4V Titanium Tube, Grade 5. Risks of contamination with hydrogen from improper pickling, as well as oxygen, nitrogen, and carbon uptake during forging, heat treating, and brazing, must be meticulously managed. Such contamination could potentially reduce ductility and impair both notch sensitivity and formability, highlighting the need for rigorous control measures.
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