Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
This is the most commonly used titanium tube for industrial applications, offering an exceptional balance of moderate strength and reasonable ductility. It excels in providing excellent corrosion resistance in both highly oxidizing and slightly reducing environments, including those with chlorides. This versatile material offers robust corrosion protection for chemical and offshore industries, as well as in aircraft manufacturing where both strength and formability are crucial. Additionally, it's widely employed in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping solutions.
Fabrication
Titanium Grade 2 is highly responsive to cold forming through standard methods. It can be easily machined, though it requires meticulous maintenance of sharp tools and liberal use of coolant. Similar to machining austenitic stainless steels, it's best to make deep, continuous cuts with slow feeds and speeds.
Stock Availability
Daxun Alloys maintains a diverse inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes.
Weight Reduction
CP 2 grade titanium tubes boast low density and an impressive strength-to-weight ratio, making them ideal for applications where weight reduction is crucial without compromising overall strength. They are cold formable, highly ductile, and can be welded using conventional TIG and MIG processes, though inert gas shielding is essential 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 heating to about 885°C [1625°F], it transforms into a beta (body-centered cubic) structure. This transformation temperature can vary based on impurities or alloying elements present. Alloying additions create two transformation temperature zones: the alpha transformation zone, where the alloy remains all alpha, and the beta transformation zone, where it is entirely beta. Between these zones, both alpha and beta phases coexist. For Grade 2 titanium, typical alpha and beta transformation temperatures 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 stages. These seamless tubes maintain continuous perimeters throughout manufacturing. Key steps include: sponge titanium vacuum arc melting, ingot blanking to 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 pipes are produced from annealed flat-rolled steel plates or strips using an automatic arc welding (TIG) process. The primary steps include: uncoiling titanium plate, 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. These welded pipes undergo at least one stress relief heat treatment post-welding. Note: Daxun does not use any filler materials during the welding process.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034) Jiangsu Daxun Alloy Co., Ltd. presents the Titanium Alloy Tube ASTM B338 Gr2 Heat Exchanger Grade 2 Seamless, the most versatile titanium tube for industrial applications. This premium-grade tubing strikes a perfect harmony between moderate strength and exceptional ductility. It boasts unrivaled corrosion resistance across both highly oxidizing and mildly reducing environments, including chlorides. This remarkable tube is indispensable in sectors such as chemical processing, offshore industries, and aircraft manufacturing, where durability and formability are paramount. Additionally, it finds extensive use in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, CPI equipment, and aerospace components, delivering reliable performance and longevity.
Fabrication
Titanium Grade 2 exhibits excellent responsiveness to cold forming using conventional techniques. This alloy can be easily machined; however, it is crucial to use sharp tools and ample coolant. Similar to machining austenitic stainless steels, operations should involve deep and continuous cuts at low feed rates and speeds for optimal results.
Stock Availability
Daxun Alloys maintains a comprehensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes, available in an array of sizes to meet diverse application requirements.
Weight Reduction
CP 2 grade titanium tubes feature a low density coupled with a high strength-to-weight ratio, making them ideal for applications necessitating weight reduction without compromising structural integrity. These tubes are cold formable, exhibit excellent ductility, and are amenable to welding through conventional TIG and MIG processes, provided that inert gas shielding is employed to avert weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 titanium tube possesses an alpha (hexagonal close-packed) crystal structure akin 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 be modulated by the presence and concentration of impurities or alloying elements. Alloying elements modify the single equilibrium transformation temperature into two distinct zones: the alpha transformation zone, below which the alloy remains all alpha, and the beta transformation zone, above which it turns fully beta. Between these zones, both alpha and beta phases coexist. For Grade 2 titanium, typical alpha and beta transformation temperatures 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 undergo a meticulous manufacturing process involving hot extrusion or oblique rolling and piercing from hollow blanks, followed by multiple cold rolling stages. Throughout the manufacturing phases, these tubes maintain continuous perimeters. The comprehensive production of titanium seamless tubes includes: sponge titanium vacuum arc melting, ingot blanking for 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, DAXUN marking, and packaging.
Grade 2 Titanium Welded Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium welded pipes are crafted from annealed flat-rolled steel plates or strips using an automatic arc welding (TIG) process. The production process encompasses: 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, ensuring optimal quality. Daxun uses no filler materials during the welding process.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) - the quintessential titanium alloy that reigns supreme in its category. This extraordinary duplex alpha+beta titanium alloy is crafted using aluminum as the alpha stabilizer and vanadium as the beta stabilizer, ensuring unparalleled strength and durability. Capable of withstanding extreme low temperatures down to approximately 800°F (427°C), the ATI Ti-6Al-4V, Grade 5 alloy is indispensable for a variety of high-performance applications. It excels in annealing, solution treating, and aging processes and finds its place in the most critical aerospace and engineering components: from compressor blades, disks, and rings for jet engines, fuselage, and space capsule parts, to pressure vessels, *** cases, helicopter rotor hubs, fasteners, and other critical forgings, delivering an exceptional strength-to-weight ratio.
The production of this exceptional alloy begins with vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques, ensuring the utmost purity and quality. The remelting process is meticulously carried out in one or two vacuum arc steps to guarantee consistency and excellence in every batch.
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 PropertiesThe extraordinarily robust Ti-6Al-4V Titanium Tube boasts a melting range of 2,800-3,000°F (1,538 - 1,649°C), making it ideal for the most demanding environments.
Density: A precise 0.160 lb/in3; 4.47 g/cm3, ensuring optimal strength and lightweight properties.
Beta Transus Temperature: Precisely controlled at 1830°F (± 25°); 999°C (± 14°) for consistent performance.
Heat Treatment When enhanced hardness, tensile strength, and fatigue strength are paramount, the material is annealed at temperatures between 1,700-1,900°F (927 - 1,038°C).
Our DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to meet your specific needs.
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: Executed at 1,000 -1,200°F; (538 - 649°C) for 1 to 8 hours, followed by air or furnace cooling.
3. Solution Heat Treating: Performed at 1,675 -1,750°F; (913 - 954°C) for 1 hour, followed by a water quench to lock in properties.
4. Aging: Conducted at 975 -1,025°F; (524 - 552°C) for 4 to 8 hours, followed by air cooling to achieve optimal hardness.
Optimum Properties Achieve the pinnacle of material performance with our small cross sections, which benefit from rapid quenching in the solution-treated and aged state. Larger cross sections may require controlled quenching to maintain top-tier properties.
HardnessIn its annealed condition, expect a typical hardness of Rockwell C 30-34. When solution-treated and aged, the hardness may increase to approximately Rockwell C 35-39.
Forgeability/Formability Our DAXUN Ti-6Al-4V Titanium Tube can be expertly forged at 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). For optimal results, a minimum reduction of 35% is recommended during the forging process.
Despite the inherent difficulty of forming at room temperature due to its strength, the DAXUN Ti-6Al-4V Titanium Tube can undergo severe forming operations like bending or stretching at temperatures up to 1,200°F (649°C) without compromising its mechanical properties. For hot sizing or forming, creep forming techniques can be employed 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 exemplifies advanced machinability. Employ machining methods designed for austenitic stainless steels, ensuring slow speeds, high feeds, and robust tool rigidity. Utilize copious amounts of non-chlorinated cutting fluids for optimal results.
Weldability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube boasts excellent weldability in both annealed and solution or partially aged conditions. Aging can be effectively achieved during post-weld heat treatment.
During post-weld heat treatment, ensure precautions to prevent contamination with oxygen, nitrogen, and hydrogen. Fusion welding should be conducted in an inert gas-filled chamber or with an inert gas tail shield to protect the molten metal and adjacent hot zones. Techniques such as spot welding, seam welding, and flash welding can be performed without a protective atmosphere.
Special Considerations The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube requires strict attention to avoid contamination. Improper pickling and the absorption of oxygen, nitrogen, and carbon during processes like forging, heat treating, and brazing can lead to hydrogen contamination. Such contamination may diminish ductility, impair notch sensitivity, and affect formability.
