Daxun Alloy's Pure Titanium Grade 1 Tubes Include:
Seamless and welded titanium tubes from Daxun Alloy are celebrated for their exceptional ductility and cold formability, making them ideal for deep drawing applications. Grade 1 titanium tubes are renowned for their robust general and seawater corrosion resistance. They also excel in resisting oxidizing, neutral, and slightly reducing media, including chloride-containing solutions.
Titanium is distinguished by its low density (approximately half that of nickel-based alloys), high strength, lightweight nature, and superior corrosion resistance. These attributes make it an optimal choice for various challenging chemical conditions. The execution standards include: 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)
Grade 2 titanium tubes from Daxun Alloy are the most commonly utilized for industrial applications, balancing moderate strength and reasonable ductility. They offer excellent corrosion resistance in both highly oxidizing and slightly reducing environments, including those with chlorides. These tubes provide superior corrosion protection across various sectors, including the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, CPI equipment, and more.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using standard methods. It can be easily machined, though it requires special attention to maintain sharp tools and the liberal use of coolant. Similar to machining austenitic stainless steels, cuts should be deep and continuous, with slow feeds and speeds.
Stock Availability
Daxun Alloys maintains a stock of CP 2 Grade Titanium Seamless and Welded Pipes in diverse sizes, ready to meet your manufacturing needs.
Weight Reduction
CP 2 grade titanium tubes stand out for their low density and high strength-to-weight ratio, making them perfect for applications necessitating weight reduction without compromising on strength. These tubes are cold formable with good ductility and can be welded using conventional TIG and MIG processes, provided inert gas shielding is used to prevent embrittlement of the weld zone.
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. Around 885°C [1625°F], they transition to a beta (body-centered cubic) structure. This transformation temperature can vary with different impurities or alloying additions. Alloying elements also affect the equilibrium transformation temperature, creating distinct alpha and beta transformation zones. For Grade 2 titanium, typical transformation 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 using hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling procedures. These seamless tubes maintain continuous perimeters throughout the manufacturing process. Key steps in their production include: sponge titanium vacuum arc melting, ingot blanking to create 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 meticulously crafted from premium annealed flat-rolled steel plate or steel strip, utilizing the state-of-the-art automatic arc welding (TIG) process. The comprehensive production stages encompass: titanium plate uncoiling, precision shearing, seamless butt welding, thorough cleaning, advanced pipe forming, TIG welding, rigorous eddy current testing, precise pre-sizing, controlled annealing, precision reducing and sizing, straightening, secondary eddy current testing, caliper marking, accurate cutting, ultrasonic examination, hydrostatic testing, final inspection, and meticulous packaging. To ensure peak performance, welded pipes undergo at least one stress relief heat treatment post-forming and welding. Note, Daxun employs no filler materials during the welding process.
Ti-6Al-4V Titanium Pipe - Premier Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400), a benchmark of excellence.
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), is acclaimed as the most versatile and sought-after titanium alloy. This duplex alpha+beta alloy integrates aluminum as the alpha stabilizer and vanadium as the beta stabilizer, offering exceptional high-strength capabilities at temperatures as low as 800°F (427°C). The Grade 5 alloy is extensively utilized for annealing, solution treating, and aging applications. Its robust attributes make it ideal for compressor blades, disks, and rings in jet engines; vital fuselage, and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and critical high strength-to-weight ratio forgings.
The alloy undergoes initial melting using advanced techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM), followed by meticulous remelting in one or two vacuum arc steps to ensure superior quality.
Specifications
• ASTM B338 - The gold standard for Heat Treatable Titanium Tube, ensuring unparalleled quality.
• AMS 4928 - Premium Forgings and Forging Stock (Annealed), providing unmatched reliability.
• AMS 4965 - High-performance Forgings (Solution Treated and Aged) for critical applications.
• AMS 4967 - Forgings (Annealed, Heat Treatable) crafted for precision and durability.
Physical Properties
Ti-6Al-4V Titanium Tube Melting Range: Spanning a precise range of 2,800-3,000°F (1,538 - 1,649°C) to ensure optimal performance.
Density: A robust density of 0.160 lb/in³; 4.47 g/cm³ guarantees superior strength.
Beta Transus Temperature: Set at 1830°F (± 25°); 999°C (± 14°) for peak structural stability.
Heat Treatment
Annealed at 1,700-1,900°F (927 - 1,038°C), achieving peak hardness, tensile strength, and fatigue strength for demanding applications.
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options tailored to meet diverse requirements.
1. Annealing: Conducted at 1,275 -1,400°F; (691 - 760°C) for ½ to 2 hours, with cooling options of air or furnace for optimal results.
2. Stress Relief Annealing: Performed at 1,000 -1,200°F; (538 - 649°C) for 1 to 8 hours, followed by air or furnace cooling to alleviate stress.
3. Solution Heat Treating: Executed at 1,675 -1,750°F; (913 - 954°C) for 1 hour, followed by an immediate water quench to lock in properties.
4. Aging: Conducted at 975 -1,025°F; (524 - 552°C) for 4 to 8 hours, followed by air cooling to enhance material properties.
Optimum Properties
Small cross sections achieve rapid quenching in the solution-treated and aged condition, while larger cross-section sizes or delayed quenching may yield suboptimal properties.
Hardness
Typical hardness in the annealed condition is Rockwell C 30-34, elevating to approximately Rockwell C 35-39 in the solution and aged condition for enhanced durability.
Forgeability/Formability
Behold the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, an epitome of strength and precision. This exceptional Grade 5 Titanium Tube is meticulously forged at a searing 1,750°F (954°C) with a final touch at 1,450°F (788°C). To achieve unparalleled outcomes, a substantial reduction of at least 35% is highly recommended.
Experience the resilience of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, even in challenging conditions. Despite being difficult to form at room temperature, this tube excels when annealed. Intricate forming operations like bending or stretching can be seamlessly performed on the annealed material at elevated temperatures up to 1,200°F (649°C) without compromising its impeccable mechanical properties. For those seeking perfection, creep forming is ideal for hot sizing or shaping within a temperature range of 1,000 to 1,200°F (538 to 649°C).
Machinability
Unlock the potential of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, with advanced machining techniques. This tube can be expertly machined using methods tailored for austenitic stainless steels. Employ slow speeds, high feeds, robust tool rigidity, and generous use of non-chlorinated cutting fluids to achieve precision and perfection.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, boasts exceptional weldability. Whether in the annealed state or solution and partially aged conditions, this tube welds effortlessly. Aging can be achieved during a meticulous post-weld heat treatment process.
Exercise caution to prevent contamination by oxygen, nitrogen, and hydrogen. Fusion welding is best performed in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and adjacent hot zones. Spot welding, seam welding, and flash welding can be conducted without a protective atmosphere, ensuring versatility and reliability.
Special Considerations
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, demands attention to detail. Improper pickling and the absorption of oxygen, nitrogen, and carbon during processes such as forging, heat treating, and brazing may lead to hydrogen contamination. This can diminish ductility and adversely affect notch sensitivity and formability. Handle with care to maintain the tube's exceptional properties.
Audited Supplier 
){kind=link}