Daxun Alloy's Pure Titanium Grade 1 Tubes Include:
Seamless and welded titanium tubes, renowned for their outstanding ductility and cold formability, perfect for deep drawing applications. Grade 1 titanium tubes excel in general and seawater corrosion resistance, offering exceptional resilience against oxidizing, neutral, and slightly reducing media (solutions) including chlorides.
Titanium's inherently low density (approximately half that of nickel-based alloys) combined with high strength, lightweight properties, and superior corrosion resistance, positions it as the ideal choice for use in a multitude of harsh chemical environments. Adhering to stringent execution standards such as ASTM B338, ASTM B265, ASME SB265, ASTM F67, ISO 5832-2, 3.7025, and UNS R50250 ensures unparalleled performance.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
Grade 2 titanium tubes are the preferred choice for industrial applications, striking an excellent balance between moderate strength and ample ductility. These tubes deliver superior corrosion resistance in highly oxidizing and slightly reducing conditions (including chlorides) and provide robust protection in chemical and offshore industries, as well as aircraft manufacturing. Applications include heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping systems.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using conventional methods, and can be easily machined with proper maintenance of sharp tools and liberal use of coolant. Similar to machining austenitic stainless steels, deep, continuous cuts with slow feeds and speeds yield optimal results.
Stock Availability
Daxun Alloys maintains a robust inventory of CP 2 Grade Titanium Seamless and Welded Pipes in a variety of sizes to meet diverse application needs.
Weight Reduction
CP 2 grade titanium tubes, characterized by low density and a high strength-to-weight ratio, are tailored for applications demanding weight reduction without compromising on strength. These tubes are cold formable, exhibit good ductility, and are weldable using standard TIG and MIG processes, provided inert gas shielding is employed to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes possess 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. Impurities or alloying elements can modify this transformation temperature. The introduction of alloying elements splits the single equilibrium transformation temperature into two zones: the alpha transformation zone, below which the alloy is all alpha, and the beta transformation zone, above which the alloy is all beta. Between these zones, both alpha and beta forms 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 meticulously crafted from hollow blanks through hot extrusion or oblique rolling and piercing processes, followed by a series of cold rolling operations. The manufacturing process ensures continuous perimeters at each stage, involving steps such as vacuum arc melting, blank preparation, hot extrusion, degreasing, drying, cutting, annealing, straightening, pickling, cold rolling, final vacuum annealing, and stringent inspections before marking (DAXUN) and packaging.
Grade 2 Titanium Welded Pipe Manufacturing Process
Discover the cutting-edge ASTM B338 Grade 2 titanium welded pipe from Jiangsu Daxun Alloy Co., Ltd. Expertly crafted using automatic arc welding (TIG) with annealed flat-rolled steel plate or steel strip, our production process includes a series of meticulous steps: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, caliper marking, cutting, ultrasonic testing, hydrostatic testing, final inspection, and packaging. Each pipe undergoes stress relief heat treatment after forming and welding, without the use of any filler materials during the welding process.
Introducing the Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube, renowned for its superior quality and performance.
Explore Titanium Alloy - (UNS R56400), a premium material for high-performance applications.
Introduction
DAXUN presents the Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), the pinnacle of titanium alloys. This duplex alpha+beta titanium alloy is ingeniously stabilized with aluminum and vanadium. It boasts exceptional high-strength capabilities, usable at temperatures as low as 800°F (427°C). ATI's Ti-6Al-4V, Grade 5 alloy, is versatile for annealing, solution treating, and aging. Ideal for compressor blades, disks, and rings for jet engines; fuselage and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and critical forgings where high strength-to-weight ratio is paramount.
The alloy's initial melting employs advanced techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting is conducted through one or two vacuum arc steps, ensuring supreme quality and consistency.
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
When exceptional hardness, tensile strength, and fatigue strength are a necessity, DAXUN 6-4 Grade 5 Titanium Tube is annealed at 1,700-1,900°F (927 - 1,038°C).
DAXUN 6-4 Grade 5 Titanium Tube offers diverse heat treatment methods to suit various application needs.
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
Achieve optimal properties with small cross-sections and rapid quenching in the solution-treated and aged condition. Larger cross-sections and/or delayed quenching may result in less than optimal characteristics.
Hardness
In the annealed state, the typical hardness is Rockwell C 30-34, while in the solution and aged condition, it is approximately Rockwell C 35-39.
Forgeability/Formability
Introducing the exceptional DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, masterfully forged at a high temperature of 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). To achieve optimal results, we recommend a reduction rate of at least 35%, ensuring superior strength and durability.
Our DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube presents challenges in forming at room temperature, even when annealed. Therefore, rigorous forming operations such as bending or stretching can be efficiently performed on the annealed material at elevated temperatures up to 1,200°F (649°C) without compromising its mechanical properties. For hot sizing or forming, creep forming is ideal within a temperature range of 1,000 to 1,200°F (538 to 649°C).
Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube can be expertly machined using techniques akin to those for austenitic stainless steels. Employ slow speeds, high feed rates, robust tool rigidity, and generous quantities of non-chlorinated cutting fluids to achieve precise results.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube excels in weldability when in the annealed or solution and partially aged conditions, with aging completed during post-weld heat treatment. Proper precautions should be taken to prevent contamination from oxygen, nitrogen, and hydrogen.
To ensure impeccable fusion welding, conduct the process in an inert gas-filled chamber or utilize 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 employed without the necessity of a protective atmosphere.
Special Considerations
While working with the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, it is vital to avoid contamination from hydrogen during improper pickling, as well as from the absorption of oxygen, nitrogen, and carbon during various processes like forging, heat treating, and brazing. Such contamination can negatively impact ductility and impair notch sensitivity and formability.
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