Daxun Alloy's pure titanium Grade 1 titanium tubes encompass a diverse range of applications and superior qualities:
Our seamless and welded titanium tubes, renowned for their outstanding ductility and cold formability, are perfect for deep drawing applications. Titanium Grade 1 tubes stand out with excellent general and seawater corrosion resistance, along with superb resistance to oxidizing, neutral, and slightly reducing media including chlorides.
Thanks to its low density-approximately half of nickel-based alloys-high strength, lightweight nature, and remarkable corrosion resistance, titanium is an exceptional choice for various demanding chemical environments. Execution standards include 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)
Widely utilized for industrial applications, Grade 2 titanium tubes offer a harmonious blend of moderate strength and reasonable ductility. They provide excellent corrosion resistance in highly oxidizing and slightly reducing conditions, including chlorides, making them ideal for the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, and various industrial and aerospace components. Additionally, they are employed in CPI equipment and pipes.
Fabrication
Titanium Grade 2 is highly amenable to cold forming through standard techniques. It is easily machinable, provided sharp tools are maintained and ample coolant is used. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are recommended.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes to meet diverse client needs.
Weight Reduction
CP 2 grade titanium tubes, characterized by their low density and high strength-to-weight ratio, are ideal for applications demanding weight reduction without compromising strength. These tubes are cold formable with good ductility and can be welded using conventional TIG and MIG processes, requiring inert gas shielding to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tube exhibits an alpha (hexagonal close-packed) crystal structure, similar to commercially pure titanium grades 1 and 3. Upon reaching approximately 885°C [1625°F], it transitions to a beta (body-centered cubic) structure. This transformation temperature can vary based on impurities or alloying elements. Alloying additions also alter the single equilibrium transformation temperature into two zones: the alpha transformation zone (all alpha below) and the beta transformation zone (all beta above). Between these temperatures, both alpha and beta forms coexist. Typical transformation temperatures for Grade 2 titanium are 890°C (1635°F) for alpha and 913°C (1675°F) for beta.
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, followed by multiple cold rolling processes. Each stage of manufacturing ensures continuous perimeters. The comprehensive manufacturing process involves: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting and feeding, hot extrusion or oblique rolling plus piercing, degreasing, drying, cutting, online annealing, 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
Experience the superior quality of Daxun's ASTM B338 Grade 2 titanium welded pipe, meticulously crafted from annealed flat-rolled steel plates or strips. Utilizing an advanced automatic arc welding (TIG) process, our production encompasses several critical stages: 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 at least one stress relief heat treatment post-formation and welding. Please note, Daxun avoids using any filler materials during the welding process.
Discover the unparalleled performance of Ti-6Al-4V Titanium Pipe - the esteemed Grade 5 Titanium Tube.Titanium Alloy - (UNS R56400): The pinnacle of versatile titanium alloys.
Introduction
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), the most celebrated titanium alloy known for its robust properties. As a duplex alpha+beta titanium alloy, it incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer, making it exceptionally strong even at low temperatures around 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is versatile, being widely used in annealing, solution treating, and aging processes. Its applications span across 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 high strength-to-weight ratio.
The alloy undergoes initial melting using state-of-the-art methods such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting is conducted through one or two vacuum arc steps, ensuring superior quality.
Specifications
• ASTM B338 - The gold standard for Heat Treatable Titanium Tubes.
• AMS 4928 - Premium Forgings and Forging Stock (Annealed)
• AMS 4965 - Top-tier Forgings (Solution Treated and Aged)
• AMS 4967 - High-quality Forgings (Annealed, Heat Treatable)
Physical PropertiesTi-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 For applications requiring high hardness, tensile strength, and fatigue strength, annealing is performed at 1,700-1,900°F (927 - 1,038°C).
DAXUN's 6-4 Grade 5 Titanium Tube offers a broad spectrum of heat treatment options.
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: Done at 1,000-1,200°F (538-649°C) for durations between 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: Performed at 975-1,025°F (524-552°C) for 4 to 8 hours, then air cooled.
Optimum Properties Optimal properties are achieved with small cross sections and rapid quenching in the solution treated and aged condition. Larger cross-section sizes or delayed quenching might yield less than optimal properties.
HardnessTypical hardness levels range from Rockwell C 30-34 in the annealed state to approximately Rockwell C 35-39 in the solution and aged condition.
Forgeability/Formability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, is masterfully forged at an impressive 1,750°F (954°C), with a final forging temperature settling at 1,450°F (788°C). For optimal results and superior quality, a reduction of at least 35% is highly recommended.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, proves challenging to form at room temperature, even when annealed. Thus, intensive forming operations such as bending or stretching are best performed on the annealed material at elevated temperatures up to 1,200°F (649°C), maintaining its mechanical integrity. Creep forming is ideal for hot sizing or shaping within the temperature range of 1,000 to 1,200°F (538 to 649°C).
Machinability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, can be expertly machined using techniques suitable for austenitic stainless steels. Optimal results are achieved with slow speeds, high feeds, robust tool rigidity, and copious use of non-chlorinated cutting fluids.
Weldability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, is highly weldable whether in the annealed condition or during solution and partial aging processes. Aging is efficiently completed during post-weld heat treatment.
To ensure the utmost quality, it is crucial to prevent contamination with oxygen, nitrogen, and hydrogen. Fusion welding is best 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 conducted without a protective atmosphere.
Special Considerations The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, is susceptible to hydrogen contamination from improper pickling, and the absorption of oxygen, nitrogen, and carbon during processes such as forging, heat treating, and brazing. Such contamination could diminish ductility, impair notch sensitivity, and reduce formability.
