Daxun Alloy's Pure Titanium Grade 1 Tubes Include:
Seamless and welded titanium tubes with outstanding ductility and cold formability, perfect for deep drawing. Renowned for their general and seawater corrosion resistance, these Grade 1 titanium tubes stand out with exceptional resistance to oxidizing, neutral, and slightly reducing media, including chlorides.
Titanium's low density (about half that of nickel-based alloys), combined with high strength, lightweight, and corrosion resistance make it the ultimate choice for challenging chemical conditions. Compliance standards include: 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 the most commonly used for industrial applications, offering an excellent balance of moderate strength and decent ductility. They provide outstanding corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. Perfect for the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and pipes where strength and formability are key.
Fabrication
Titanium Grade 2 is highly amenable to cold forming with standard techniques. It machines well, but special care must be taken to keep tools sharp and use plenty of coolant. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are recommended.
Stock Availability
Daxun Alloys maintains an extensive stock of CP 2 Grade Titanium Seamless and Welded Pipes, available in diverse sizes.
Weight Reduction
CP 2 grade titanium tubes boast a low density and a high strength-to-weight ratio, making them ideal 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 processes, although inert gas shielding is crucial to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tube features an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Around 885°C (1625°F), it transforms to a beta (body-centered cubic) structure. This transformation temperature can vary with the type and amount of impurities or alloying elements. Alloying elements also divide the equilibrium transformation temperature into two 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 zones, both alpha and beta forms coexist. Typical transformation temperatures for Grade 2 titanium are 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 crafted from hollow blanks using a hot extrusion or oblique rolling and piercing process, followed by multiple cold rolling stages. Throughout manufacturing, the tubes maintain continuous perimeters. The production process includes: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting and 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 epitomizes superior craftsmanship, being meticulously fabricated from annealed flat-rolled steel plates or steel strips using the advanced automatic arc welding (TIG) process. Our comprehensive production workflow 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. Each welded pipe undergoes a mandatory stress relief heat treatment post-formation and welding. It is noteworthy that Daxun refrains from using any filler materials during the welding process, ensuring utmost purity and structural integrity.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) stands as the pinnacle of titanium alloys. Renowned for its duplex alpha+beta configuration, it employs aluminum as the alpha stabilizer and vanadium as the beta stabilizer, bestowing it with remarkable strength. Capable of functioning at low temperatures around 800°F (427°C), the ATI Ti-6Al-4V, Grade 5 alloy excels in various treatments including annealing, solution treating, and aging. This versatile alloy finds extensive applications in compressor blades, disks, and rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and critical forgings, all benefiting from its superior strength-to-weight ratio.
The alloy's initial melting involves vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques, followed by one or two stages of vacuum arc remelting to ensure the highest quality 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 PropertiesTi-6Al-4V Titanium Tube boasts a melting range of 2,800-3,000°F (1,538 - 1,649°C), ensuring robustness in extreme conditions.
Density: 0.160 lb/in3; 4.47 g/cm3
Beta Transus Temperature: Precisely 1830°F (± 25°); 999°C (± 14°)
Heat Treatment When exceptional hardness, tensile strength, and fatigue strength are required, annealing is performed at temperatures between 1,700-1,900°F (927 - 1,038°C).
DAXUN 6-4 Grade 5 Titanium Tube can undergo diverse heat treatment processes to meet specific requirements.
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: Performed 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, followed by a water quench.
4. Aging: Implemented at 975 - 1,025°F; (524 - 552°C) for 4 to 8 hours, with an air cool finish.
Optimum Properties Achieving optimal properties necessitates rapid quenching for small cross sections in the solution-treated and aged condition. Delays in quenching or larger cross-section sizes may result in suboptimal properties.
HardnessTypical hardness levels range from Rockwell C 30-34 in the annealed condition to approximately Rockwell C 35-39 in the solution-treated and aged condition, ensuring exceptional durability.
Forgeability/Formability Experience the unparalleled strength and durability of the DAXUN Ti-6Al-4V Titanium Tube, meticulously engineered from Grade 5 Titanium. This powerhouse is forged at a precise 1,750°F (954°C), with a subsequent final forging temperature of 1,450°F (788°C). For optimal results, a reduction rate of at least 35% is highly recommended, ensuring unmatched structural integrity.
Unlock the full potential of DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, even in challenging conditions. At room temperature, forming this robust material can be arduous, but when annealed, it becomes more pliable. For demanding operations such as bending or stretching, perform these tasks at temperatures up to 1,200°F (649°C) without altering its mechanical properties. Utilize creep forming for hot sizing or forming within the range of 1,000 to 1,200°F (538 to 649°C) for precision results.
Advanced Machinability Effortlessly machine the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube using techniques designed for austenitic stainless steels. Employ slow speeds, high feeds, and maintain excellent tool rigidity. Ensure the use of copious amounts of non-chlorinated cutting fluids for superior outcomes.
Exceptional Weldability The DAXUN Ti-6Al-4V Titanium Tube Grade 5 Titanium Tube boasts excellent weldability in both annealed and solution plus partially aged conditions. Post-weld heat treatment further enhances its aging process.
During welding, it is imperative to prevent contamination from oxygen, nitrogen, and hydrogen. Fusion welding should be performed in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and adjacent hot zones. Spot welding, seam welding, and flash welding can be executed without a protective atmosphere, ensuring robust and reliable joints.
Essential Special Considerations To maintain the exceptional properties of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, it is crucial to avoid hydrogen contamination from improper pickling and to prevent the absorption of oxygen, nitrogen, and carbon during processes like forging, heat treating, and brazing. Such contamination can diminish ductility and affect notch sensitivity and formability.
