Daxun Alloy's pure titanium Grade 1 titanium tubes include:
Our seamless and welded titanium tubes boast unmatched ductility and cold formability, making them ideal for deep drawing applications. Known for their exceptional resistance to general and seawater corrosion, Grade 1 titanium tubes also excel in resisting oxidizing, neutral, and slightly reducing media, including chlorides.
Renowned for its low density, approximately half that of nickel-based alloys, as well as for its high strength, light weight, and corrosion resistance, titanium is the material of choice for challenging chemical environments. We conform to stringent 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)
Widely utilized in industrial applications, Grade 2 titanium tubes strike a perfect balance between moderate strength and excellent ductility. They offer superb corrosion resistance in highly oxidizing and slightly reducing environments, including chlorides. Ideal for the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, CPI equipment, and other critical industrial and aerospace components.
Fabrication
Grade 2 titanium responds exceptionally well to cold forming using standard methods. While it can be machined easily, special care must be taken to maintain sharp tools and use plenty of coolant. Similar to machining austenitic stainless steels, cuts should be deep and continuous at slow speeds and feeds.
Stock Availability
Daxun Alloys offers an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes.
Weight Reduction
With low density and a high strength-to-weight ratio, CP 2 grade titanium tubes are perfect for applications requiring weight reduction without sacrificing strength. They are cold formable with good ductility and can be welded using TIG and MIG techniques, though inert gas shielding is necessary to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium exhibits an alpha (hexagonal close-packed) crystal structure, similar to commercially pure titanium grades 1 and 3. At around 885°C (1625°F), it transitions to a beta (body-centered cubic) structure. Alloying elements and impurities can modify the transformation temperature, creating distinct alpha and beta phase regions. Typical transformation temperatures for Grade 2 titanium 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 through hot extrusion or oblique rolling and piercing, followed by multiple cold rolling processes. The manufacturing process ensures continuous perimeters at all stages. Key steps include: vacuum arc melting of sponge titanium, ingot blanking to obtain hollow blanks, cleaning, cutting, feeding, hot extrusion or oblique rolling + 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 crafted from annealed flat-rolled steel plate or steel strip, utilizing an automatic arc welding (TIG) process. The production process encompasses several meticulous steps: 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. Each welded pipe undergoes at least one stress relief heat treatment post-forming and welding, ensuring optimal quality. Notably, Daxun refrains from using any filler materials during the welding process.
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 most acclaimed titanium alloy. This duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Renowned for its high strength, it operates efficiently even at low temperatures, approximately 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is essential for annealing, solution treating, and aging. Its diverse applications include compressor blades, disks, and rings for jet engines; fuselage and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and critical forgings, all benefiting from its impressive strength-to-weight ratio.
The alloy is initially melted using 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 to ensure purity and consistency.
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 allows for versatile heat treatment methods.
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
Small cross sections with rapid quenching maximize properties in the solution-treated and aged condition. However, larger cross-sections and delayed quenching may yield less than optimal outcomes.
Hardness
In its annealed state, the typical hardness is Rockwell C 30-34, while in the solution and aged condition, it reaches approximately Rockwell C 35-39.
Forgeability/Formability
The DAXUN Ti-6Al-4V Titanium Tube, also known as Grade 5 Titanium Tube, demonstrates exceptional forgeability when processed at 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). For optimal results, a reduction rate of at least 35% is highly recommended.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, exhibits challenges in formability at room temperature, even after annealing. Therefore, intensive forming operations, such as bending or stretching, should be conducted on annealed materials at elevated temperatures up to 1,200°F (649°C) to preserve mechanical properties. Hot sizing and forming can be effectively achieved through creep forming at temperatures ranging from 1,000 to 1,200°F (538 to 649°C).
Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, can be machined using methods suited for austenitic stainless steels. Employ slow speeds, high feeds, and ensure good tool rigidity. Additionally, the use of substantial amounts of non-chlorinated cutting fluids is necessary for optimal machining results.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, is known for its excellent weldability in both annealed and solution-treated conditions, with aging.
to be accomplished during post-weld heat treatment. It is crucial to take precautions to prevent contamination from oxygen, nitrogen, and hydrogen. Fusion welding should be conducted in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and nearby hot zones. Techniques such as spot welding, seam welding, and flash welding can be performed without a protective atmosphere.
Special Considerations
It is important to note that the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, may become contaminated with hydrogen due to improper pickling or from absorbing oxygen, nitrogen, and carbon during processes like forging, heat treating, and brazing. Such contamination can reduce ductility and negatively impact notch sensitivity and formability.
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