Daxun Alloy's Premium Grade 1 Titanium Tubes Include:
Our seamless and welded titanium tubes boast unparalleled ductility and cold formability, making them perfect for deep drawing applications. Renowned for their exceptional general and seawater corrosion resistance, Grade 1 titanium tubes excel in environments exposed to oxidizing, neutral, and mildly reducing media, including chlorides.
Titanium's remarkable attributes, such as low density (approximately half that of nickel-based alloys), superior strength, lightweight, and outstanding corrosion resistance, make it an ideal choice for challenging chemical conditions. We adhere to the highest industry 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)
Our Grade 2 Titanium Tubes are the industry standard for a wide range of applications, offering an exquisite balance of moderate strength and excellent ductility. They provide robust corrosion resistance in highly oxidizing and mildly reducing conditions, including chloride environments. Perfect for chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, firewater systems, ballast water systems, CPI equipment, and various industrial and aerospace components.
Fabrication
Titanium Grade 2 is highly amenable to cold forming using standard techniques. While it is readily machinable, it requires meticulous attention to tool sharpness and liberal coolant usage. Similar to machining austenitic stainless steels, it demands deep, continuous cuts at slow speeds and feeds.
Stock Availability
Daxun Alloys maintains a diverse inventory of CP 2 Grade Titanium Seamless and Welded Pipes, catering to a variety of sizes and specifications.
Weight Reduction
CP 2 Grade Titanium Tubes stand out with their low density and superior strength-to-weight ratio, making them ideal for applications necessitating weight reduction without compromising strength. These tubes are easily cold formable, exhibit excellent ductility, and can be welded with conventional TIG and MIG processes, provided inert gas shielding to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 Titanium Tubes exhibit an alpha (hexagonal close-packed) crystal structure. This transforms to a beta (body-centered cubic) structure at approximately 885°C (1625°F). Alloying elements can modify this transformation temperature, creating distinct alpha and beta zones. Typical transformation temperatures for Grade 2 Titanium are 890°C (1635°F) for the alpha phase and 913°C (1675°F) for the beta phase.
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 Titanium Seamless Tubes are crafted through a meticulous process involving hot extrusion or oblique rolling and piercing, followed by multiple cold rolling stages. Each tube maintains continuous perimeters throughout the manufacturing stages, which include: sponge titanium vacuum arc melting, ingot blanking, cleaning, cutting, feeding, hot extrusion or oblique rolling and piercing, degreasing, drying, cutting, online annealing and straightening, pickling, multiple cold rolling stages, further 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 sets the industry standard in performance and quality. Fabricated from annealed flat-rolled steel plate or steel strip, the pipe undergoes advanced automatic arc welding (TIG) techniques. 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, further eddy current testing, caliper marking, cutting, ultrasonic testing, hydrostatic testing, final inspection, and packaging. Welded pipes receive mandatory stress-relief heat treatment post-forming and welding, upholding the highest standards. Daxun ensures no filler materials are used during the welding process, guaranteeing unparalleled integrity.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), stands as the industry's most sought-after titanium alloy. This duplex alpha+beta titanium variant achieves its impressive properties through aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Renowned for its exceptional strength, it remains reliable at temperatures as low as 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is engineered for annealing, solution treating, and aging applications. Key uses include compressor blades, disks, and rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and critical forgings-each benefiting from an unmatched strength-to-weight ratio.
The alloy's journey begins with initial melting using cutting-edge vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) technologies. This is followed by one or two remelting steps in a vacuum arc furnace, ensuring purity and consistency.
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: 1830°F (± 25°); 999°C (± 14°)
Heat Treatment Annealed at temperatures between 1,700-1,900°F (927 - 1,038°C), the alloy attains superior hardness, tensile strength, and fatigue resistance.
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to meet diverse requirements.
1. Annealing: Performed at 1,275 - 1,400°F (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: Conducted at 1,000 - 1,200°F (538 - 649°C) for 1 to 8 hours, then air or furnace cooled.
3. Solution Heat Treating: Executed at 1,675 - 1,750°F (913 - 954°C) for 1 hour, with a subsequent water quench.
4. Aging: Implemented at 975 - 1,025°F (524 - 552°C) for 4 to 8 hours, followed by air cooling.
Optimum Properties Achieving optimal properties demands rapid quenching for small cross-sections in the solution treated and aged condition, whereas larger cross-sections or delayed quenching may yield less-than-optimal results.
HardnessIn its annealed state, the alloy typically exhibits a hardness of Rockwell C 30-34, while the solution treated and aged condition achieves approximately Rockwell C 35-39.
Forgeability/Formability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is meticulously forged at a scorching 1,750°F (954°C) with a final forging touch at 1,450°F (788°C). For optimal outcomes, a reduction of at least 35% is highly recommended.
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube presents forming challenges at room temperature, even when annealed. However, intense forming operations like bending or stretching can be executed on the annealed material at temperatures up to an impressive 1,200°F (649°C) without altering its mechanical properties. Creep forming is also viable for hot sizing or forming within a temperature range of 1,000 to 1,200°F (538 to 649°C).
Machinability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube can be precisely machined utilizing methods suitable for austenitic stainless steels. This involves slow speeds, high feed rates, robust tool rigidity, and copious amounts of non-chlorinated cutting fluids for best results.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube demonstrates excellent weldability in both annealed and solution-partially aged conditions, with subsequent aging achieved during post-weld heat treatment.
It is crucial to take precautions against contamination by oxygen, nitrogen, and hydrogen. Fusion welding should be performed in an inert gas-filled chamber or with an inert gas tail shield to protect the molten metal and nearby hot zones. Spot welding, seam welding, and flash welding can all be conducted without a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube should be handled carefully to prevent hydrogen contamination from improper pickling and the absorption of oxygen, nitrogen, and carbon during forging, heat treating, brazing, etc. Such contamination can reduce ductility and negatively impact notch sensitivity and formability.