Daxun Alloy's Pure Titanium Grade 1 Titanium Tubes Include:
Seamless titanium tubes and welded titanium tubes, which boast excellent ductility and cold formability, making them perfect for deep drawing applications. Grade 1 titanium tubes stand out for their remarkable resistance to general and seawater corrosion, as well as their exceptional resilience against oxidizing, neutral, and slightly reducing media (solutions), including chlorides.
Titanium's low density (approximately half that of nickel-based alloys), combined with its high strength, light weight, and corrosion resistance, makes it an outstanding choice for a multitude of demanding chemical environments. The execution standards for our titanium products 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)
Often the go-to titanium tube for industrial uses, Grade 2 titanium provides an exceptional balance of moderate strength and reasonable ductility. It features outstanding corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. This grade ensures robust protection in chemical and offshore industries, aircraft manufacturing, and wherever strength and ease of forming are essential. It is also widely used in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and pipes.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using standard methods. It can be easily machined, provided that sharp tools are maintained and liberal use of coolant is applied. Similar to machining austenitic stainless steels, cutting should be deep and continuous with slow feeds and speeds to ensure optimal performance.
Stock Availability
Daxun Alloys maintains a robust inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes to meet diverse customer needs.
Weight Reduction
With its low density and high strength-to-weight ratio, CP 2 grade titanium tubes are ideal for applications that demand weight reduction without compromising strength. These tubes are cold formable, exhibit excellent ductility, and can be welded using conventional TIG and MIG processes, with inert gas shielding to prevent embrittlement in the weld zone.
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. Around 885°C (1625°F), it undergoes a transformation to a beta (body-centered cubic) structure. This transformation temperature can be adjusted by varying the impurities or alloying additions. The addition of alloying elements creates two transformation zones: the alpha transformation zone (below which the alloy remains all alpha) and the beta transformation zone (above which the alloy remains all beta). Between these two temperatures, both alpha and beta forms coexist. Typical alpha and beta transformation temperatures for Grade 2 titanium are 890°C (1635°F) and 913°C (1675°F), respectively.
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium seamless tubes are crafted from hollow blanks via hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling steps. Each stage ensures continuous perimeters. The manufacturing process includes: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting, and feeding, hot extrusion or oblique rolling with 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 stands as a premium product, meticulously crafted from annealed flat-rolled steel plate or steel strip using an advanced automatic arc welding (TIG) process. The comprehensive production process involves: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, second eddy current testing, caliper measuring, marking, cutting, ultrasonic testing, hydrostatic testing, and final inspection before packaging. Notably, each welded pipe undergoes at least one stress relief heat treatment post-formation and welding. Daxun ensures optimal quality control, using specific filler materials during the welding process for unparalleled performance.
Ti-6Al-4V Titanium Pipe - Premium Grade 5 Titanium Tube.
Titanium Alloy - Renowned (UNS R56400) Specifications.
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) stands as the most preferred titanium alloy in the market. This duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer, offering exceptional strength and versatility. Capable of operating at low temperatures around 800°F (427°C), the ATI Ti-6Al-4V, Grade 5 alloy is expertly engineered for annealing, solution treating, and aging. Its applications span high-stakes industries including 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 vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques, followed by one or two vacuum arc remelting steps to ensure superior quality.
Specifications
• ASTM B338 - Standard for Heat Treatable Titanium Tubes.
• AMS 4928 - Standards for Forgings and Forging Stock (Annealed).
• AMS 4965 - Standards for Forgings (Solution Treated and Aged).
• AMS 4967 - Standards for Forgings (Annealed, Heat Treatable).
Physical Properties
Ti-6Al-4V Titanium Tube's melting range: 2,800-3,000°F (1,538 - 1,649°C), indicating its remarkable thermal tolerance.
Density: Measured at 0.160 lb/in³ (4.47 g/cm³), ensuring lightweight yet durable structures.
Beta Transus Temperature: Recorded at 1830°F (± 25°); 999°C (± 14°), providing critical data for thermal processing.
Heat Treatment
Annealing at 1,700-1,900°F (927 - 1,038°C) delivers enhanced hardness, tensile strength, and fatigue resistance.
DAXUN 6-4 Grade 5 Titanium Tube is versatile, capable of multiple heat treatment methods to suit various 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, with immediate water quenching.
4. Aging: Held at 975 -1,025°F (524 - 552°C) for 4 to 8 hours, followed by air cooling for optimal properties.
Optimum Properties
Rapid quenching of small cross sections in the solution treated and aged condition ensures superior properties. However, larger cross-section sizes or delayed quenching might yield less optimal characteristics.
Hardness
Typical hardness in the annealed state ranges from Rockwell C 30-34, while the solution and aged conditions achieve approximately Rockwell C 35-39.
Forgeability/Formability
Experience the unparalleled strength and precision of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, meticulously forged at a scorching 1,750°F (954°C) with a final fine-tuning at 1,450°F (788°C). Achieve optimal results with a recommended reduction of at least 35%, ensuring superior performance in demanding applications.
Delve into the robust capabilities of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, which presents challenges in forming at room temperature, even when annealed. For best results, severe forming operations like bending or stretching should be performed on annealed material at elevated temperatures up to 1,200°F (649°C). Creep forming is ideal for hot sizing or shaping, maintaining mechanical properties at temperatures from 1,000 to 1,200°F (538 to 649°C).
Machinability
Discover the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube's adaptability in machining, similar to austenitic stainless steels, employing slow speeds, high feeds, and robust tool rigidity. Ensure peak efficiency with the use of abundant non-chlorinated cutting fluids, achieving precision cuts and immaculate finishes.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube offers exceptional weldability in both annealed and solution-treated states, with aging easily incorporated post-weld. Maintain material integrity by avoiding contamination from oxygen, nitrogen, and hydrogen.
Utilize fusion welding in an inert gas-filled chamber or with an inert gas tail shield protecting the molten metal and hot zones. Additionally, spot welding, seam welding, and flash welding can be accomplished without a protective atmosphere, ensuring versatile and reliable joining solutions.
Special Considerations
When working with the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, take precautions to prevent contamination from hydrogen during improper pickling or from absorption of oxygen, nitrogen, and carbon during forging, heat treating, or brazing. Such contamination can adversely affect ductility, notch sensitivity, and formability, making careful handling imperative.
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