Daxun Alloy's Pure Titanium Grade 1 Tubes Include:
Seamless and welded titanium tubes, celebrated for their superb ductility and cold formability, making them perfect for deep drawing. Grade 1 titanium tubes boast impressive general and seawater corrosion resistance and stand strong against oxidizing, neutral, and slightly reducing media, including chlorides.
Titanium's low density (approximately half that of nickel-based alloys), combined with high strength, lightweight, and corrosion-resistant properties, make it an outstanding choice for challenging chemical environments. Execution standards include: 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 titanium tube is a staple in industrial applications, offering an optimal balance of moderate strength and reasonable ductility. It excels in corrosion resistance under both highly oxidizing and slightly reducing conditions, including chlorides. Ideal for the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and pipes.
Fabrication
Titanium Grade 2 is highly receptive to cold forming using standard methods. Its machinability is excellent, provided that sharp tools and liberal coolant are used. Similar to machining austenitic stainless steels, it requires deep, continuous cuts with slow feeds and speeds.
Stock Availability
Daxun Alloys maintains a robust inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes.
Weight Reduction
CP 2 grade titanium tubes, with their low density and high strength-to-weight ratio, are perfect for applications demanding weight reduction without compromising strength. They are cold formable, exhibit good ductility, and can be welded using conventional TIG and MIG processes, though inert gas shielding is essential to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes exhibit an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Around 885°C (1625°F), this transforms into a beta (body-centered cubic) structure. Impurities or alloying elements can adjust this transformation temperature, creating alpha and beta zones: the alpha zone lies below, and the beta zone above. 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 originate from hollow blanks formed via hot extrusion or oblique rolling and piercing, followed by extensive cold rolling. During manufacturing, continuous perimeters are maintained. The comprehensive process includes: sponge titanium vacuum arc melting, ingot blanking, 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 stands out for its meticulous craftsmanship. This high-quality product is made from annealed flat-rolled steel plate or steel strip, utilizing the sophisticated automatic arc welding (TIG) process. Our comprehensive production process includes several critical stages: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing, and sizing, straightening, another round of 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 structural integrity and performance. Daxun ensures no filler materials are used during the welding process, maintaining the purity and quality of our titanium welded pipes.
Ti-6Al-4V Titanium Pipe - High Performance Grade 5 Titanium TubeTitanium Alloy - (UNS R56400): Engineering Excellence
Introduction: Leading the Way in Titanium Innovation
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) is our star performer, renowned as the most popular titanium alloy in the market. This duplex alpha+beta titanium alloy is ingeniously stabilized with aluminum and vanadium, ensuring superior strength. Capable of withstanding low temperatures around 800°F (427°C), this versatile alloy is ideal for various high-stress applications. It is perfectly suited for annealing, solution treating, and aging. Our Grade 5 alloy finds extensive use in 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 high strength-to-weight ratio.
The alloy's initial melting is performed using advanced techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). This is followed by one or two vacuum arc remelting steps to achieve optimal quality.
Specifications: Industry-Standard Compliance
• 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: Robust and ReliableTi-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: Versatility in Performance Our annealing process ensures high hardness, tensile strength, and fatigue strength, operating at temperatures between 1,700-1,900°F (927 - 1,038°C).
DAXUN 6-4 Grade 5 Titanium Tube is adaptable to an array of heat treatment methods.
1. Annealing: 1,275 - 1,400°F (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: 1,000 - 1,200°F (538 - 649°C) 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 a water quench.
4. Aging: 975 - 1,025°F (524 - 552°C) for 4 to 8 hours, followed by air cooling.
Optimum Properties: Achieving Peak Performance The solution-treated and aged condition delivers rapid quenching for small cross-sections. For larger cross-sections and/or delayed quenching, the properties may be less than optimal.
Hardness: Exceptional DurabilityIn the annealed condition, the typical hardness ranges from Rockwell C 30-34. In the solution and aged condition, it ranges approximately from Rockwell C 35-39.
Forgeability/Formability: Superior Craftsmanship Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 - a marvel of engineering. Forged meticulously at 1,750°F (954°C) and completed with a final forging temperature of 1,450°F (788°C), this titanium tube achieves impeccable integrity. For optimal performance, a reduction of at least 35% is highly recommended, ensuring the highest standards in strength and durability.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, is designed to withstand challenging conditions. Difficult to form at room temperature, even when annealed, it reveals its true potential at elevated temperatures. Severe forming operations, such as bending or stretching, can be executed on the annealed material at temperatures up to 1,200°F (649°C) without compromising its mechanical properties. For precise hot sizing or forming, creep forming is your go-to method, operable at temperatures ranging from 1,000 to 1,200°F (538 to 649°C).
Machinability Experience unparalleled machinability with the DAXUN Ti-6Al-4V Titanium Tube, Grade 5. Leveraging proven methods used for austenitic stainless steels, this titanium tube demands slow speeds, high feeds, and robust tool rigidity. The use of ample non-chlorinated cutting fluids ensures smooth and efficient machining, making it a superior choice for precision engineering applications.
Weldability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, excels in weldability. Whether in the annealed or solution and partially aged conditions, this titanium tube accommodates various welding processes, offering adaptability and strength.
Achieving aging during post-weld heat treatment, the DAXUN Ti-6Al-4V Titanium Tube requires precautions to prevent contamination from oxygen, nitrogen, and hydrogen. Fusion welding is best performed in an inert gas-filled chamber or using an inert gas tail shield to protect the molten metal and surrounding hot zones. Versatile and resilient, it supports spot welding, seam welding, and flash welding without the need for a protective atmosphere.
Special Considerations Handle with care - the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, is susceptible to contamination by hydrogen during improper pickling or by oxygen, nitrogen, and carbon absorption during processes like forging, heat treating, and brazing. Such contamination can diminish ductility, impair notch sensitivity, and affect formability. Maintain stringent control to preserve its exceptional qualities.
