Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
This Grade 2 titanium tube is a popular choice for industrial applications due to its outstanding balance of moderate strength and remarkable ductility. It excels in providing exceptional corrosion resistance in both highly oxidizing and mildly reducing environments, including chlorides. Its remarkable properties make it indispensable in the chemical and offshore industries, as well as in aircraft manufacturing where strength and formability are crucial. Additionally, it is extensively used in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping.
Fabrication
Titanium Grade 2 adapts seamlessly to cold forming using conventional methods. It is highly machinable, provided that sharp tools are maintained and coolant is used liberally. Similar to machining austenitic stainless steels, machining processes should involve deep, continuous cuts with slow feeds and speeds to ensure precision and efficiency.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in a diverse range of sizes, readily available for various industrial needs.
Weight Reduction
CP 2 Grade Titanium Tubes are prized for their low density and exceptional 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 standard TIG and MIG processes, with inert gas shielding to prevent weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 Titanium Tubes exhibit an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Around 885°C (1625°F), this transforms into a beta (body-centered cubic) structure. The transformation temperature can vary based on impurities or alloying additions, splitting the equilibrium transformation into two zones: the alpha transformation zone (all alpha) and the beta transformation zone (all beta). Between these zones, both alpha and beta forms coexist. The 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 expertly crafted from hollow blanks using hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling stages. This comprehensive manufacturing process ensures continuous perimeters throughout each stage, enhancing overall quality. The process includes: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting, hot extrusion, oblique rolling and piercing, degreasing, drying, cutting, online annealing and straightening, pickling, multiple cold rolling stages, degreasing, 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 Pipes are meticulously produced from annealed flat-rolled steel plate or steel strip using the automatic arc welding (TIG) process. The main production stages include: 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. Welded pipes undergo at least one stress-relief heat treatment post-forming and welding. Daxun ensures no filler materials are used during the welding process.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034) This premier titanium tube is the go-to solution for a myriad of industrial applications, offering an unparalleled blend of moderate strength and admirable ductility. It stands out with exceptional corrosion resistance in both highly oxidizing and mildly reducing environments, including chlorides. This tube is indispensable in chemical and offshore industries, aircraft manufacturing, and more, where strength and formability are paramount. Additionally, it's widely utilized in 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 conventional methods. It is easily machinable, but careful attention must be given to maintaining sharp tools and liberal use of coolants. Similar to machining austenitic stainless steels, cuts should be deep and continuous with slower feeds and speeds for optimal results.
Stock Availability
Daxun Alloys boasts an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes, available in various sizes to meet diverse needs.
Weight Reduction
CP 2 grade titanium tubes are lauded for their low density and high strength-to-weight ratio, making them ideal for applications demanding weight reduction without compromising strength. They are cold formable, possess excellent ductility, and can be welded using conventional TIG and MIG processes, with the necessity of inert gas shielding 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. At approximately 885°C [1625°F], it transitions to a beta (body-centered cubic) structure. This transformation temperature can vary with the type and amount of impurities or alloying additions. These additions also delineate the transformation into two zones: the alpha transformation zone, where the alloy is entirely alpha, and the beta transformation zone, where the alloy is entirely beta. Between these temperatures, both alpha and beta phases coexist. Typically, the 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 meticulously crafted from hollow blanks via hot extrusion or oblique rolling and piercing, followed by multiple cold rolling processes. These seamless tubes maintain continuous perimeters throughout the manufacturing stages. The comprehensive production process includes: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting and feeding, hot extrusion or oblique rolling + 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 pipes are produced from annealed flat-rolled steel plates or strips using an automatic arc welding (TIG) process. The comprehensive production stages include: 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. Welded pipes undergo at least one stress relief heat treatment post-forming and welding. Daxun ensures no filler materials are used during the welding process.
Ti-6Al-4V Titanium Pipe- Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) is renowned for being the most sought-after titanium alloy. This extraordinary duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer, making it immensely strong and capable of performing at temperatures as low as 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is versatile, being suitable for annealing, solution treating, and aging. It's indispensable in the aerospace industry, used in compressor blades, disks, and rings for jet engines; as well as in fuselage and space capsule components. Additionally, its high strength-to-weight ratio makes it ideal for pressure vessels, *** cases, helicopter rotor hubs, fasteners, and critical forgings.
To achieve its superior properties, the alloy undergoes initial melting using advanced techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). This is followed by one or two steps of vacuum arc remelting to ensure optimal quality.
Specifications
• ASTM B338 - Premium Heat Treatable Titanium Tube Standard
• AMS 4928 - High-Quality Forgings and Forging Stock (Annealed)
• AMS 4965 - Superior Forgings (Solution Treated and Aged)
• AMS 4967 - Top-Grade 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 demanding high hardness, tensile strength, and fatigue strength, annealing at 1,700-1,900°F (927 - 1,038°C) is recommended.
The DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to meet diverse application needs.
1. Annealing: 1,275 -1,400°F; (691 - 760°C), for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: 1,000 -1,200°F; (538 - 649°C), for 1 to 8 hours, followed by air or furnace cooling.
3. Solution Heat Treating: 1,675 -1,750°F; (913 - 954°C), for 1 hour, followed by water quenching.
4. Aging: 975 -1,025°F; (524 - 552°C), for 4 to 8 hours, followed by air cooling.
Optimum Properties Achieving optimal properties in the solution treated and aged condition requires rapid quenching for small cross sections. Larger cross sections or delayed quenching may lead to reduced performance.
HardnessIn the annealed state, typical hardness ranges between Rockwell C 30-34, and in the solution and aged condition, it ranges approximately Rockwell C 35-39.
Forgeability/Formability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is best forged at 1,750°F (954°C), with a final forging temperature of 1,450°F (788°C). To achieve the best results, a reduction of at least 35% is recommended.
Forming the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube at room temperature can be challenging, even when annealed. Therefore, severe forming operations such as bending or stretching should be performed on the annealed material at temperatures up to 1,200°F (649°C) without compromising its mechanical properties. For hot sizing or forming, creep forming between 1,000 to 1,200°F (538 to 649°C) is advisable to maintain integrity.
Advanced Machinability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, offers exceptional machinability akin to methods used for austenitic stainless steels. Optimal results are achieved with slow speeds, high feeds, robust tool rigidity, and ample use of non-chlorinated cutting fluids, ensuring precision and efficiency in every cut.
Superior Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, is renowned for its excellent weldability, whether in the annealed state or under solution and partial aging conditions. Achieve impeccable results with seamless integration.
Post-weld heat treatment completes the aging process, safeguarding against contamination from oxygen, nitrogen, and hydrogen. For fusion welding, an inert gas-filled chamber or an inert gas tail shield over the molten metal and adjacent hot zones is recommended. Techniques such as spot welding, seam welding, and flash welding can all be executed without a protective atmosphere.
Essential Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, requires diligent handling to prevent hydrogen contamination from improper pickling, as well as the absorption of oxygen, nitrogen, and carbon during processes like forging, heat treating, and brazing. Such contamination can compromise ductility, notch sensitivity, and formability, highlighting the need for meticulous care.
