Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
This premium Grade 2 Titanium Tube is the top choice for industrial applications, offering an exceptional balance of moderate strength and notable ductility. With its outstanding corrosion resistance in both highly oxidizing and slightly reducing conditions, including exposure to chlorides, it is indispensable in various sectors. It excels in providing robust corrosion protection for the chemical and offshore industries, as well as in aircraft manufacturing, where both strength and formability are paramount. Additionally, it is extensively used in heat exchangers, hypochlorite systems, fire and ballast water systems, industrial and aerospace components, CPI equipment, and piping solutions.
Fabrication
Grade 2 Titanium responds exceptionally well to cold forming using standard methods. It is highly machinable, although it requires sharp tools and a liberal use of coolant. Similar to machining austenitic stainless steels, it necessitates deep, continuous cuts with slow feed and speed rates for optimal results.
Stock Availability
Daxun Alloys offers an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes, available in a diverse range of sizes to meet varying requirements.
Weight Reduction
The CP 2 grade titanium tubes are renowned for their low density and high strength-to-weight ratio, making them ideal for applications demanding weight reduction without compromising strength. They exhibit excellent cold formability, good ductility, and can be effectively welded using standard TIG and MIG processes, with inert gas shielding to prevent weld zone embrittlement.
Crystal Structure
ASTM B338 Grade 2 titanium tube exhibits an alpha (hexagonal close-packed) crystal structure at room temperature, consistent with commercially pure titanium grades 1 and 3. Around 885°C (1625°F), it transitions to a beta (body-centered cubic) structure. The transformation temperature varies according to the type and concentration of impurities or alloying elements present. Alloying elements introduce two temperature zones by segmenting the single equilibrium transformation temperature: the alpha transformation zone (below which the alloy is fully alpha) and the beta transformation zone (above which the alloy is fully beta). Between these zones, 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 meticulously crafted from hollow blanks through hot extrusion or oblique rolling and piercing, followed by multiple cold rolling processes. Ensuring continuous perimeters at all stages, the seamless tube manufacturing process involves: 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, DAXUN marking, 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 via the automatic arc welding (TIG) process. The comprehensive production process 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. Welded pipes undergo at least one stress relief heat treatment post-forming and welding to ensure structural integrity. Notably, Daxun refrains from using filler materials during the welding process.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034) This titanium tube stands as the premier choice for diverse industrial applications, expertly balancing moderate strength with commendable ductility. Renowned for its impressive corrosion resistance under both highly oxidizing and mildly reducing environments (including chlorides), it excels in safeguarding against corrosion in chemical and offshore industries, as well as in aircraft manufacturing where strength and formability are paramount. This versatile tube is also essential in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, a host of industrial and aerospace components, CPI equipment, and piping solutions.
Fabrication
Titanium Grade 2 demonstrates exceptional responsiveness to cold forming using standard techniques. While readily machinable, it demands meticulous maintenance of sharp tools and abundant coolant use. Similar to machining austenitic stainless steels, it necessitates deep, continuous cuts with slow feeds and speeds for optimal results.
Stock Availability
Daxun Alloys offers an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in a wide array of sizes, ensuring ample availability to meet diverse requirements.
Weight Reduction
CP 2 Grade titanium tubes are characterized by their low density and superior strength-to-weight ratio, ideal for applications demanding weight reduction without compromising structural integrity. These tubes are cold formable, exhibit excellent ductility, and support conventional TIG and MIG welding processes, provided inert gas shielding is employed to prevent weld zone embrittlement.
Crystal Structure
At ambient temperatures, ASTM B338 Grade 2 titanium features an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Near 885°C [1625°F], it undergoes transformation to a beta (body-centered cubic) structure. This transition temperature is modifiable by impurity levels or alloying additions. Alloying elements introduce dual temperature zones: the alpha transformation zone, where the alloy remains alpha, and the beta transformation zone, where it is all beta. Between these zones, both 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 meticulously crafted from hollow blanks via hot extrusion or oblique rolling and piercing methods, followed by multiple cold rolling stages. The seamless tubes maintain continuous perimeters throughout production. The process includes: sponge titanium vacuum arc melting, ingot blanking to procure hollow blanks, cleaning, cutting, 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 automatic arc welding (TIG). The production process 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. Welded pipes undergo stress relief heat treatment post-forming and welding. Daxun employs filler materials during welding to ensure optimal quality.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) is the premier choice in the market of titanium alloys, renowned for its duplex alpha+beta structure, with aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Its high strength makes it suitable for use at temperatures as low as 800°F (427°C). ATI Ti-6Al-4V, Grade 5 is versatile, serving critical purposes such as annealing, solution treating, and aging. This alloy's applications span from compressor blades, disks, and rings for jet engines to fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and essential forgings, all leveraging its exceptional strength-to-weight ratio.
The alloy undergoes initial melting through advanced techniques such as vacuum arc remelting (VAR), electron beam (EB), or plasma arc hearth melting (PAM), followed by one or two steps of vacuum arc remelting to achieve the desired purity and properties.
Specifications
• ASTE B338 - Standard for Heat Treatable Titanium Tubes
• AMS 4928 - Specifications for Forgings and Forging Stock (Annealed)
• AMS 4965 - Standards for Forgings (Solution Treated and Aged)
• AMS 4967 - Guidelines for Forgings (Annealed, Heat Treatable)
Physical PropertiesTi-6Al-4V Titanium Tube exhibits a melting range between 2,800-3,000°F (1,538 - 1,649°C), making it highly durable and resistant to extreme temperatures.
Density: A notable 0.160 lb/in3; 4.47 g/cm3 providing a balance of lightweight and strength.
Beta Transus Temperature: Precisely at 1830°F (± 25°); 999°C (± 14°), highlighting its stability under varying thermal conditions.
Heat Treatment The alloy is annealed at temperatures of 1,700-1,900°F (927 - 1,038°C) to achieve high hardness, tensile strength, and fatigue resistance.
DAXUN 6-4 Grade 5 Titanium Tube can accommodate various heat treatment methods to meet specific performance requirements.
1. Annealing: Conducted at temperatures between 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, followed by air or furnace cooling.
3. Solution Heat Treating: Executed at 1,675 -1,750°F; (913 - 954°C) for 1 hour, concluded with water quenching.
4. Aging: Carried out at 975 -1,025°F; (524 - 552°C) for 4 to 8 hours, and cooling in air to finalize properties.
Optimum Properties Optimal properties are achieved with small cross sections and rapid quenching in the solution-treated and aged conditions. Larger cross sections or delayed quenching may result in reduced performance.
HardnessIn its annealed condition, typical hardness ranges from Rockwell C 30-34. When solution treated and aged, hardness increases to approximately Rockwell C 35-39.
Forgeability/Formability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 is forged at 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). A reduction of at least 35% is recommended to achieve optimal results.
Forming this alloy at room temperature is challenging, even when annealed. Severe forming operations, such as bending or stretching, should be performed on annealed material at temperatures up to 1,200°F (649°C) without altering its mechanical properties. Hot sizing or forming can be achieved using creep forming techniques at temperatures ranging from 1,000 to 1,200°F (538 to 649°C).
Machinability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube can be expertly machined using techniques typically employed for austenitic stainless steels. This involves maintaining slow speeds, high feeds, and ensuring robust tool rigidity. Additionally, it is crucial to utilize copious amounts of non-chlorinated cutting fluids to achieve optimal results.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is highly weldable when in annealed or solution and partially aged conditions, complemented by aging.
accomplished during post-weld heat treatment. It is imperative to avoid contamination with oxygen, nitrogen, and hydrogen. Fusion welding should be executed in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and adjacent hot zones. Techniques such as spot welding, seam welding, and flash welding can also be performed without requiring a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube must be handled with care to prevent contamination by hydrogen during improper pickling and by the absorption of oxygen, nitrogen, and carbon during processes like forging, heat treating, brazing, etc. Such contamination can adversely affect ductility, as well as impair notch sensitivity and formability.
