Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
Grade 2 Titanium Tube is the industry's go-to solution, renowned for its superior balance of moderate strength, exceptional corrosion resistance, and impressive ductility. Whether facing highly oxidizing or slightly reducing environments-including chloride exposure-this versatile tube stands strong. It is perfect for chemical and offshore industries, aircraft manufacturing, and applications requiring both strength and easy forming. Its extensive use spans heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and various piping solutions.
Fabrication
Titanium Grade 2 exhibits excellent responsiveness to cold forming with standard techniques. Machining is straightforward but requires sharp tools and ample coolant to maintain quality. Similar to machining austenitic stainless steels, the process necessitates deep, continuous cuts with slow feed rates and speeds for optimal results.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various dimensions, ensuring timely delivery to meet diverse project requirements.
Weight Reduction
CP 2 Grade Titanium Tubes are engineered for applications demanding weight reduction without compromising strength. Their low density and high strength-to-weight ratio make them ideal. These tubes can be cold-formed, offer excellent ductility, and are weldable using conventional TIG and MIG methods, provided inert gas shielding is used to prevent weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 Titanium Tube features an alpha (hexagonal close-packed) crystal structure, similar to grades 1 and 3. This alpha structure transitions to a beta (body-centered cubic) form at approximately 885°C (1625°F). The transformation temperature varies with impurities or alloying elements, which split the equilibrium transformation into two zones: the alpha zone (below which all alpha) and the beta zone (above which all beta), with a dual-phase region in between. 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 through hot extrusion or oblique rolling and piercing, followed by multiple cold rolling processes. The manufacturing ensures continuous perimeters at all stages, encompassing steps such as sponge titanium vacuum arc melting, hollow blanking, cleaning, cutting, feeding, hot extrusion, degreasing, drying, online annealing, straightening, pickling, cold rolling, vacuum annealing, and final inspection, 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 using an automatic TIG arc welding process. Key production steps include uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing, sizing, straightening, and a series of inspections such as ultrasonic and hydrostatic testing, culminating in final inspection, marking, and packaging. Stress relief heat treatment is conducted post-welding to ensure pipe integrity.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034) Recognized as the most commonly utilized titanium tube for industrial applications, our Titanium Alloy Tube ASTM B338 Grade 2 delivers a flawless blend of moderate strength and exceptional ductility. Showcasing remarkable corrosion resistance, this tube excels in both highly oxidizing and mildly reducing environments, including chlorides. It provides robust corrosion protection across the chemical and offshore industries, and is indispensable in aircraft manufacturing where strength and formability are critical. Its versatility extends to heat exchangers, hypochlorite systems, fire water systems, ballast water systems, and an array of industrial and aerospace components, CPI equipment, and piping solutions.
Fabrication
Titanium Grade 2 is highly receptive to cold forming using conventional methodologies. While it is readily machinable, it necessitates sharp tools and copious use of coolant. Machining should mirror the practices used for austenitic stainless steels, employing deep and continuous cuts with slow feed rates and speeds to optimize the process.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various dimensions to meet diverse application needs.
Weight Reduction
CP 2 grade titanium tubes, characterized by their low density and superior strength-to-weight ratio, are 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, although inert gas shielding is essential to prevent weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 titanium tube boasts an alpha (hexagonal close-packed) crystal structure, common to commercially pure titanium grades 1 and 3. Upon reaching approximately 885°C (1625°F), it transitions to a beta (body-centered cubic) structure. The transformation temperature varies with the type and quantity of impurities or alloying elements present. Alloying elements split the single equilibrium transformation temperature into two distinct zones: the alpha transformation zone (all alpha) and the beta transformation zone (all beta). Typically, for Grade 2 titanium, these temperatures 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 via hot extrusion or oblique rolling and piercing, followed by multiple cold rolling stages. Manufacturing steps include: vacuum arc melting of sponge titanium, blanking for hollow blanks, cleaning, cutting, 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. Each stage ensures the maintenance of continuous perimeters of the tubes.
Grade 2 Titanium Welded Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium welded pipe production employs annealed flat-rolled steel plate or strip with automatic arc welding (TIG). Key processes include: 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-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
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), is the pinnacle of titanium alloys, loved for its versatility and performance. This remarkable duplex alpha+beta titanium alloy is stabilized with aluminum and vanadium, making it a high-strength solution for demanding environments, enduring temperatures as low as 800°F (427°C). Known for its application in annealing, solution treating, and aging, the ATI Ti-6Al-4V, Grade 5 alloy shines across various industries. It is essential for jet engine compressor blades, disks, and rings, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and other critical forgings, all thanks to its superb strength-to-weight ratio.
The alloy's production begins with precise vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques. To ensure purity and uniformity, remelting is performed in one or two vacuum arc stages.
Specifications
• ASTE 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 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 Annealing at 1,700-1,900°F (927 - 1,038°C) offers high hardness, tensile strength, and fatigue strength. The DAXUN 6-4 Grade 5 Titanium Tube is adaptable to various heat treatments.
DAXUN 6-4 Grade 5 Titanium Tube can undergo multiple heat treatments tailored to specific 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, air or furnace cooled
3. Solution Heat Treating: 1,675 - 1,750°F (913 - 954°C) for 1 hour, water quench
4. Aging: 975 - 1,025°F (524 - 552°C) for 4 to 8 hours, air cooled
Optimum Properties Achieving the best properties requires small cross sections and rapid quenching under solution treated and aged conditions. Larger cross sections or delayed quenching may lead to suboptimal properties.
HardnessIn the annealed state, typical hardness is Rockwell C 30-34. In the solution and aged condition, it reaches approximately Rockwell C 35-39.
Forgeability/Formability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, forges optimally at 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). A minimum 35% reduction is recommended for superior results.
Due to its inherent hardness, DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, is challenging to form at room temperature, even when annealed. Severe forming operations like bending or stretching are best performed on annealed material at temperatures up to 1,200°F (649°C) without altering its mechanical properties. Creep forming is effective for hot sizing or forming at temperatures between 1,000 and 1,200°F (538 to 649°C).
Machinability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is engineered for superior machinability. It can be expertly machined using methods similar to those for austenitic stainless steels. Optimal performance is achieved with slow speeds, high feeds, robust tool rigidity, and the generous application of non-chlorinated cutting fluids.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube stands out for its exceptional weldability. It allows for easy welding in the annealed or solution and partially aged conditions, with aging
seamlessly accomplished during post-weld heat treatment. It is crucial to prevent contamination by oxygen, nitrogen, and hydrogen. Fusion welding can be efficiently performed within an inert gas-filled chamber or by using an inert gas tail shield over the molten metal and adjacent hot zones. Versatile welding methods such as spot welding, seam welding, and flash welding can be carried out without the necessity of a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube requires special attention to avoid contamination. Exposure to hydrogen from improper pickling, and absorption of oxygen, nitrogen, and carbon during forging, heat treating, or brazing, can compromise its properties. Such contamination may diminish ductility, reduce notch sensitivity, and impair formability.
