Daxun Alloy's pure titanium Grade 1 titanium tubes include:
Our collection consists of seamless titanium tubes and welded titanium tubes, celebrated for their excellent ductility and cold formability, making them perfect for deep drawing. Grade 1 titanium tubes offer outstanding general and seawater corrosion resistance along with exceptional resistance to oxidizing, neutral, and slightly reducing media (solutions), including chlorides.
Titanium's low density-about half that of nickel-based alloys-combined with its high strength, lightweight nature, and superior corrosion resistance, makes it an ideal choice for a variety of harsh chemical conditions. Compliant with execution standards: ASTM B338 | ASTM B265 | ASME SB265 | ASTM F67 | ISO 5832-2 | 3.7025 | UNS R50250.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
This is the most frequently used titanium tube for industrial applications, offering a superb balance of moderate strength and reasonable ductility. It delivers excellent corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. With its strong corrosion protection, it's an asset in the chemical and offshore industries, aircraft manufacturing, 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 using standard methods. It can be easily machined; however, it requires maintaining sharp tools and liberal use of coolants. Similar to machining austenitic stainless steels, cuts should be deep and continuous with slow feeds and speeds for optimal results.
Stock Availability
Daxun Alloys maintains a robust stock of CP 2 Grade Titanium Seamless and Welded Pipes in a range of sizes to meet various customer needs.
Weight Reduction
CP 2 grade titanium tubes boast low density and a high strength-to-weight ratio, ideal for applications where weight reduction is paramount without compromising strength. They are cold-formable, possess good ductility, and can be welded using conventional TIG and MIG processes, though inert gas shielding is essential to prevent embrittlement of the weld zone.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tube exhibits 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 impurities or alloying additions. Alloying elements also divide the single equilibrium transformation temperature into two zones: the alpha transformation zone, below which the alloy remains all alpha, and the beta transformation zone, above which the alloy is all 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 crafted from hollow blanks through hot extrusion or oblique rolling and piercing, followed by multiple cold rolling processes. At every stage, titanium seamless tubes must have continuous perimeters. The manufacturing process includes: sponge titanium vacuum arc melting, ingot blanking to hollow blanks, cleaning, cutting, 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 pipe is meticulously crafted from annealed flat-rolled steel plate or steel strip via the advanced automatic arc welding (TIG) process. The comprehensive production stages encompass: titanium plate uncoiling, precise shearing, seamless butt welding, thorough cleaning, innovative pipe forming, sophisticated TIG welding, stringent eddy current testing, accurate pre-sizing, controlled annealing, precision reducing and sizing, meticulous straightening, additional eddy current testing, caliper marking, precise cutting, comprehensive ultrasonic testing, rigorous hydrostatic testing, final inspection, and premium packaging. Each welded pipe undergoes mandatory stress relief heat treatment post forming and welding, ensuring superior performance. Notably, Daxun refrains from using any filler materials during the welding process, maintaining the utmost purity and integrity of the titanium pipe.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) is celebrated as the premier titanium alloy. This duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer, delivering unmatched strength. It performs exceptionally well at low temperatures, approximately 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy excels in annealing, solution treating, and aging processes. Its applications are vast, including compressor blades, disks, and rings for jet engines; fuselage and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and critical forgings, all demanding a high strength-to-weight ratio.
The alloy's initial melting is executed using vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM), with remelting achieved through one or two vacuum arc steps, ensuring the highest purity and quality.
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 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) to achieve high hardness, tensile strength, and fatigue strength.
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to meet diverse requirements.
1. Annealing: 1,275 -1,400°F; (691 - 760°C), holding for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: 1,000 -1,200°F; (538 - 649°C), holding 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), holding for 4 to 8 hours, followed by air cooling.
Optimum Properties
Optimal properties are achieved with small cross sections and rapid quenching in the solution treated and aged condition. Larger cross sections or delayed quenching may result in suboptimal properties.
Hardness
Typical hardness ranges from Rockwell C 30-34 in the annealed condition to approximately Rockwell C 35-39 in the solution treated and aged condition.
Forgeability/Formability
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5. This remarkable Titanium Tube is meticulously forged at a precise temperature of 1,750°F (954°C) and undergoes final forging at 1,450°F (788°C). For optimal performance, a minimum reduction of 35% is strongly recommended, ensuring superior quality and consistency.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, stands out for its exceptional difficulty to form at room temperature, even when annealed. However, severe forming operations such as bending or stretching can be expertly executed on the annealed material at elevated temperatures up to 1,200°F (649°C). This process maintains its mechanical integrity. Additionally, creep forming is a viable method for hot sizing or shaping within the temperature range of 1,000 to 1,200°F (538 to 649°C), ensuring precise and reliable results.
Effortless Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 exhibits exceptional machinability, comparable to austenitic stainless steels. Utilizing techniques designed for stainless steels, this Titanium Tube benefits from slow speeds, high feeds, excellent tool rigidity, and substantial use of non-chlorinated cutting fluids, thereby ensuring precision and efficiency in machining operations.
Superior Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 is highly conducive to welding in both annealed and solution or partially aged conditions. This flexibility allows for aging to occur during post-weld heat treatment.
To achieve optimal results, it is crucial to avoid contamination by oxygen, nitrogen, and hydrogen. Fusion welding can be performed in an inert gas-filled chamber or by using an inert gas tail shield to protect the molten metal and adjacent hot zones. Additionally, spot welding, seam welding, and flash welding can be conducted without requiring a protective atmosphere, ensuring versatility and reliability.
Important Special Considerations
When working with the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, it is essential to be aware of potential contamination from hydrogen due to improper pickling or absorption of oxygen, nitrogen, and carbon during processes such as forging, heat treating, and brazing. Such contamination can significantly reduce ductility and negatively impact notch sensitivity and formability. Adhering to best practices and stringent controls will ensure the highest quality and performance of the Titanium Tube.
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