Daxun Alloy's pure titanium Grade 1 titanium tubes encompass a range of superior quality products designed to meet the highest industry standards:
Our selection includes seamless titanium tubes and welded titanium tubes, both renowned for their outstanding ductility and superb cold formability, making them perfect for deep drawing applications. These Grade 1 titanium tubes exhibit superb general and seawater corrosion resistance and show excellent resilience against oxidizing, neutral, and slightly reducing media (solutions), including chlorides.
With a remarkably low density, around half that of nickel-based alloys, titanium offers high strength, lightweight properties, and exceptional corrosion resistance, making it the material of choice for various demanding chemical environments. Our tubes adhere to the following stringent standards: 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)
Widely regarded as the go-to titanium tube for industrial applications, Grade 2 offers an impeccable balance of moderate strength and excellent ductility. It provides outstanding corrosion resistance in highly oxidizing as well as slightly reducing environments, including chlorides. This makes it ideal for industries such as chemical processing, offshore operations, and aerospace. Applications include heat exchangers, hypochlorite systems, fire water and ballast water systems, CPI equipment, industrial and aerospace components, and various piping solutions.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using conventional methods. It can be efficiently machined, provided that sharp tools are maintained, and an abundant amount of coolant is used. Similar to machining austenitic stainless steels, the process requires deep and continuous cuts with slow feeds and speeds.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes, available in a wide variety of sizes to meet diverse needs.
Weight Reduction
CP 2 grade titanium tubes feature a low density combined with a high strength-to-weight ratio, making them ideal for applications where minimizing weight is crucial without compromising strength. These tubes are cold formable, exhibit good ductility, and can be welded using standard TIG and MIG processes, with inert gas shielding essential to prevent embrittlement at the weld zone.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 titanium tube features an alpha (hexagonal close-packed) crystal structure, similar to commercial pure titanium grades 1 and 3. Upon heating to approximately 885°C (1625°F), it transforms into a beta (body-centered cubic) structure. The transformation temperatures are influenced by impurities or alloying additions, leading to the creation of alpha and beta transformation zones. For Grade 2 titanium, the typical alpha transformation temperature is 890°C (1635°F), while the beta transformation temperature is 913°C (1675°F).
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium seamless tubes are meticulously manufactured from hollow blanks through a hot extrusion process or oblique rolling and piercing, followed by multiple cold rolling sequences. Throughout every stage of manufacturing, the tubes maintain continuous perimeters. The intricate manufacturing process includes: sponge titanium vacuum arc melting, ingot blanking to produce 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 through the advanced automatic arc welding (TIG) process. The intricate production journey encompasses: 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. Ensuring superior quality, the welded pipes undergo at least one stress relief heat treatment post-forming and welding. Daxun integrates any filler materials during the welding process, guaranteeing exceptional durability and performance.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), stands as the pinnacle of titanium alloys. This duplex alpha+beta titanium alloy incorporates aluminum as the alpha stabilizer and vanadium as the beta stabilizer, providing remarkable strength and versatility. Capable of withstanding temperatures as low as 800°F (427°C), ATI Ti-6Al-4V, Grade 5 alloy, is perfectly suited for annealing, solution treating, and aging. Its applications span from compressor blades, disks, and rings for jet engines to 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 production begins with vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting occurs through one or two vacuum arc steps, ensuring a consistently high-quality product.
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 PropertiesTi-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: 1,830°F (± 25°); 999°C (± 14°)
Heat Treatment When peak hardness, tensile strength, and fatigue strength are essential, annealing is performed at 1,700-1,900°F (927 - 1,038°C).
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to suit various applications.
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 For optimal properties, small cross sections with rapid quenching are preferred in the solution-treated and aged condition. Larger cross-sections or delayed quenching may not achieve maximum properties.
HardnessIn its annealed state, the typical hardness ranges from Rockwell C 30-34, while in the solution and aged condition, it reaches approximately Rockwell C 35-39.
Forgeability/Formability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is meticulously forged at a precise temperature of 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). For optimal results, a reduction of at least 35% is highly recommended.
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 effectively performed on the annealed material at elevated temperatures up to 1,200°F (649°C) without altering its mechanical properties. Additionally, creep forming is ideal for hot sizing or shaping at temperatures between 1,000 and 1,200°F (538 to 649°C).
Machinability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube can be precisely machined using techniques suitable for austenitic stainless steels. Employ slow speeds, high feeds, robust tool rigidity, and copious amounts of non-chlorinated cutting fluids to achieve the best results.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is notably weldable in both annealed and solution-aged conditions, with aging
achieved during post-weld heat treatment. It is crucial to avoid contamination from oxygen, nitrogen, and hydrogen. Fusion welding should be performed in an inert gas-filled chamber or with an inert gas tail shield protecting the molten metal and adjacent hot zones. Techniques such as spot welding, seam welding, and flash welding can be executed without a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is susceptible to contamination by hydrogen from improper pickling, and from the absorption of oxygen, nitrogen, and carbon during processes like forging, heat treating, and brazing. Such contamination can significantly reduce ductility and negatively impact notch sensitivity and formability.