Daxun Alloy's pure titanium Grade 1 titanium tubes include:
Our seamless and welded titanium tubes boast exceptional ductility and cold formability, making them perfect for deep drawing applications. Grade 1 titanium tubes are celebrated for their remarkable general and seawater corrosion resistance, as well as their outstanding resistance to oxidizing, neutral, and slightly reducing media (solutions), including chlorides.
With a density nearly half that of nickel-based alloys, titanium's low density, high strength, light weight, and corrosion resistance position it as an ideal material for a myriad of challenging chemical environments. Our titanium tubes adhere to the stringent standards of ASTM B338, ASTM B265, ASME SB265, ASTM F67, ISO 5832-2, 3.7025, and UNS R50250.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
This versatile titanium tube is predominantly used in industrial applications, offering an exceptional balance of moderate strength and commendable ductility. Its excellent corrosion resistance in both highly oxidizing and slightly reducing environments (including chlorides) makes it indispensable in the chemical and offshore industries, aircraft manufacturing, and more. Whether in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, CPI equipment, or aerospace components, this tube delivers unmatched performance.
Fabrication
Titanium Grade 2 is highly receptive to cold forming using standard techniques. It can be easily machined, but it's crucial to maintain sharp tools and use ample coolant. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are recommended.
Stock Availability
Daxun Alloys maintains a vast inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes to meet your needs.
Weight Reduction
CP 2 grade titanium tubes are characterized by their low density and impressive strength-to-weight ratio, making them ideal for applications demanding weight reduction without compromising strength. They are cold formable, possess good ductility, and can be welded using standard TIG and MIG processes, although inert gas shielding is essential to avoid weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 titanium tube features an alpha (hexagonal close-packed) crystal structure, similar to commercially pure titanium grades 1 and 3. Around 885°C (1625°F), this transforms to a beta (body-centered cubic) structure. This transformation temperature can vary based on impurity levels or alloying additions. The incorporation of alloying elements divides the single 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 is entirely beta. Between these zones, both alpha and beta phases coexist. Typical transformation temperatures for Grade 2 titanium are 890°C (1635°F) and 913°C (1675°F), respectively.
Grade 2 Titanium Seamless Pipe Manufacturing Process
Our ASTM B338 Grade 2 titanium seamless tubes are meticulously crafted from hollow blanks via hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling stages. It is essential that titanium seamless tubes maintain continuous perimeters throughout the manufacturing process. The comprehensive production of titanium seamless tubes involves: starting with sponge titanium, vacuum arc melting to create ingots, blanking to obtain hollow blanks, cleaning, cutting, and feeding, then hot extrusion or oblique rolling and piercing, followed by degreasing, drying, cutting, on-line 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 is meticulously crafted from annealed flat-rolled steel plate or steel strip, employing an advanced automatic arc welding (TIG) process. The comprehensive production workflow 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. Post-formation and welding, welded pipes undergo a mandatory stress relief heat treatment. Unique to Daxun, no filler materials are utilized during the welding process, ensuring utmost purity and performance.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) stands as the epitome of titanium alloys. This duplex alpha+beta titanium alloy, incorporating aluminum as the alpha stabilizer and vanadium as the beta stabilizer, boasts unparalleled strength and versatility. It thrives even at low temperatures around 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy undergoes processes such as annealing, solution treating, and aging, making it indispensable in applications like jet engine compressor blades, disks, and rings; fuselage and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and critical forgings demanding a high strength-to-weight ratio.
To ensure the highest quality, the alloy is initially melted using vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques. It is then remelted through one or two steps in a vacuum arc.
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 Properties
Ti-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
Annealed at 1,700-1,900°F (927 - 1,038°C), the alloy achieves remarkable hardness, tensile strength, and fatigue strength, adapting to various stringent demands.
DAXUN 6-4 Grade 5 Titanium Tube offers flexible heat treatment options.
1. Annealing: 1,275 - 1,400°F; (691 - 760°C), ½ to 2 hours, air or furnace cool
2. Stress Relief Annealing: 1,000 - 1,200°F; (538 - 649°C), 1 to 8 hours, air or furnace cool
3. Solution Heat Treating: 1,675 - 1,750°F; (913 - 954°C), 1 hour, water quench
4. Aging: 975 - 1,025°F; (524 - 552°C), 4 to 8 hours - air cool
Optimum Properties
Achieving peak properties is possible with small cross sections and rapid quenching under solution treated and aged conditions. Larger cross-sections or delayed quenching can result in suboptimal properties.
Hardness
Typically, the alloy exhibits a hardness of Rockwell C 30-34 when annealed, and Rockwell C 35-39 in the solution and aged condition.
Forgeability/Formability
The DAXUN Ti-6Al-4V Titanium Tube, also known as Grade 5 Titanium Tube, boasts a remarkable forging process. Forged initially at a high temperature of 1,750°F (954°C), the final forging occurs at 1,450°F (788°C). For optimal results, a reduction of at least 35% is highly recommended.
Crafting the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube at room temperature presents a challenge, even in its annealed state. Severe forming operations, including bending and stretching, are best performed on the annealed material at elevated temperatures up to 1,200°F (649°C) without altering its mechanical properties. Creep forming is ideal for hot sizing or shaping, operating effectively within the 1,000 to 1,200°F (538 to 649°C) range.
Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is machinable using techniques akin to those for austenitic stainless steels. Employ slow speeds, high feeds, robust tool rigidity, and copious amounts of non-chlorinated cutting fluids to achieve precision and maintain the tube's integrity.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube excels in weldability, whether in its annealed state or after solution and partial aging. The aging process is crucial and typically occurs during post-weld heat treatment.
To ensure optimal results when welding the DAXUN Ti-6Al-4V Titanium Tube, take precautions to prevent contamination by oxygen, nitrogen, and hydrogen. Fusion welding should be done in an inert gas-filled chamber or with an inert gas tail shield covering the molten metal and adjacent hot zones. 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 is susceptible to contamination by hydrogen during improper pickling, and by oxygen, nitrogen, and carbon during forging, heat treating, and brazing. This contamination can significantly decrease ductility and negatively impact notch sensitivity and formability.
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