Daxun Alloy's premier pure titanium Grade 1 titanium tubes boast the finest quality and performance, including:
Our seamless and welded titanium tubes shine with exceptional ductility and cold formability, making them perfect for deep drawing applications. Grade 1 titanium tubes are celebrated for their superb general and seawater corrosion resistance, as well as their outstanding resilience to oxidizing, neutral, and slightly reducing environments (including chlorides).
Titanium's unique properties-low density (approximately half that of nickel-based alloys), high tensile strength, lightweight, and remarkable corrosion resistance-make it the material of choice for the most demanding chemical conditions. Adhering to rigorous 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)
The quintessential choice for industrial applications, Grade 2 Titanium Tube provides an exceptional balance of moderate strength and ductility. It delivers unparalleled corrosion resistance in both highly oxidizing and slightly reducing environments (including chlorides). Ideal for the chemical and offshore sectors, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping, where both strength and formability are crucial.
Fabrication
Titanium Grade 2 responds excellently to cold forming using conventional techniques. It can be machined effectively, provided sharp tools are maintained and ample coolant is used. Similar to machining austenitic stainless steels, the process requires deep, continuous cuts at slow feeds and speeds.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes, available in a broad range of sizes to meet diverse requirements.
Weight Reduction
CP 2 grade titanium tubes are distinguished by their low density and high strength-to-weight ratio, ideal for applications where reducing weight is paramount without compromising strength. These tubes are cold formable, exhibit excellent ductility, and can be welded using standard TIG and MIG processes, provided inert gas shielding is used to prevent weld zone embrittlement.
Crystal Structure
At ambient temperatures, ASTM B338 Grade 2 titanium tube 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. This transformation temperature can vary with the type and amount of impurities or alloying elements present. Alloying elements also modify the equilibrium transformation temperature into two distinct zones: the alpha transformation zone (below which the alloy is entirely alpha) and the beta transformation zone (above which the alloy is entirely beta). Between these temperatures, both alpha and beta forms coexist. For Grade 2 titanium, typical alpha and beta transformation temperatures are approximately 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 via hot extrusion or oblique rolling and piercing, followed by multiple cold rolling stages. From initial titanium sponge vacuum arc melting to final inspection, the manufacturing process ensures continuous perimeters throughout. Key steps include: sponge titanium vacuum arc melting, hollow blanking, cleaning, cutting and feeding, hot extrusion, oblique rolling and piercing, degreasing, drying, cutting, annealing, straightening, pickling, multiple cold rolling stages, vacuum annealing, final straightening, cutting, pickling, thorough inspection, marking (DAXUN), and packaging.
Grade 2 Titanium Welded Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 titanium welded pipe is expertly crafted from annealed flat-rolled steel plate or steel strip, utilizing an advanced automatic arc welding (TIG) process. The meticulous production process encompasses: 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-formation and welding, ensuring exceptional durability and performance. At Daxun, no filler materials are incorporated during the welding process, maintaining the highest standards of purity and quality.
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 industry's most favored titanium alloy. This sophisticated duplex alpha+beta titanium alloy employs aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Boasting high strength and resilience, this alloy performs exceptionally even at low temperatures around 800°F (427°C). ATI Ti-6Al-4V, Grade 5 alloy is integral to processes like annealing, solution treating, and aging. Its applications span across critical aerospace components, including compressor blades, disks, rings for jet engines, fuselage and space capsule structures, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and high-strength forgings, offering an unparalleled strength-to-weight ratio.
The alloy is initially fabricated using state-of-the-art vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques. Subsequent remelting is performed through one or two vacuum arc steps, ensuring uniformity and superior quality.
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 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: 1830°F (± 25°); 999°C (± 14°)
Heat Treatment Annealed at 1,700-1,900°F (927 - 1,038°C), this process is ideal when higher hardness, tensile strength, and fatigue strength are desired.
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to meet diverse requirements.
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 Optimal properties are achieved in small cross sections with rapid quenching in the solution treated and aged condition. Larger cross-section sizes or delayed quenching may result in suboptimal properties.
HardnessTypical hardness in the annealed condition ranges from Rockwell C 30-34, and approximately Rockwell C 35-39 in the solution treated and aged condition.
Forgeability/Formability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube boasts exceptional forgeability when processed at a 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.
Although DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is challenging to form at room temperature-even when annealed-it excels in severe forming operations like bending or stretching when performed at elevated temperatures up to 1,200°F (649°C). These high temperatures ensure that the material's mechanical properties remain unchanged. Hot sizing or forming can also be efficiently achieved via creep forming at temperatures between 1,000 to 1,200°F (538 to 649°C).
Machinability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube can be effectively machined using techniques similar to those employed for austenitic stainless steels. This involves slow speeds, high feeds, robust tool rigidity, and abundant use of non-chlorinated cutting fluids for optimal machining performance.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube offers excellent weldability whether in the annealed state or solution and partially aged conditions. The aging process is achieved during post-weld heat treatment.
Proper precautions are vital to avoiding contamination by oxygen, nitrogen, and hydrogen. Fusion welding should be carried out in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and adjacent hot zones. Additionally, spot welding, seam welding, and flash welding can be performed without a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube may face contamination risks from hydrogen due to improper pickling or from the absorption of oxygen, nitrogen, and carbon during various processes like forging, heat treating, and brazing. Such contamination could compromise ductility and negatively affect notch sensitivity and formability.
