Daxun Alloy's pure titanium Grade 1 titanium tubes encompass a range of exceptional features:
Our seamless and welded titanium tubes boast excellent ductility and cold formability, rendering them ideal for deep drawing applications. Grade 1 titanium tubes are celebrated for their superior general and seawater corrosion resistance, as well as their outstanding resilience against oxidizing, neutral, and slightly reducing media (solutions), including chlorides.
Titanium's low density (approximately half that of nickel-based alloys), combined with its high strength, light weight, and remarkable corrosion resistance, makes it the preferred choice for a variety of challenging chemical environments. Adhering to standards such as ASTM B338, ASTM B265, ASME SB265, ASTM F67, ISO 5832-2, 3.7025, and UNS R50250, ensures its reliability and quality.
Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)
Renowned as the most commonly employed titanium tube for industrial uses, Grade 2 titanium offers an exceptional combination of moderate strength and reasonable ductility. Its excellent corrosion resistance in both highly oxidizing and slightly reducing environments, including chlorides, makes it indispensable in the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, as well as CPI equipment and pipes.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using standard procedures. It can be readily machined with attention to maintaining sharp tools and liberal coolant usage. Similar to machining austenitic stainless steels, the cutting should be deep and continuous, with slow feeds and speeds to ensure optimal results.
Stock Availability
Daxun Alloys maintains a robust inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes, ensuring prompt fulfillment of diverse client needs.
Weight Reduction
CP 2 grade titanium tubes are prized for their low density and high strength-to-weight ratio, making them ideal for weight-sensitive applications without compromising overall strength. They exhibit excellent cold formability and ductility, and can be welded using conventional TIG and MIG processes, with inert gas shielding required to prevent weld zone embrittlement.
Crystal Structure
At ambient temperature, ASTM B338 Grade 2 titanium tubes exhibit an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Upon heating to approximately 885°C (1625°F), they transform to a beta (body-centered cubic) structure. This transformation temperature can vary with the type and amount of impurities or alloying elements. The addition of alloying elements bifurcates the equilibrium transformation temperature into two distinct zones: the alpha transformation zone, below which the alloy is wholly alpha, and the beta transformation zone, above which the alloy is entirely beta. Within the intermediate temperatures, both alpha and beta phases coexist. 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 are meticulously crafted from hollow blanks using hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling stages. The seamless tubes maintain continuous perimeters throughout all manufacturing steps. The comprehensive process involves: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning and cutting, 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
Introducing Daxun's ASTM B338 Grade 2 Titanium Welded Pipe, a paragon of craftsmanship and durability. This pipe is meticulously crafted from annealed flat-rolled steel plate or steel strip through an advanced automatic arc welding (TIG) process. Our comprehensive production process encompasses uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, and rigorous quality assurance stages such as eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, caliper marking, cutting, ultrasonic testing, hydrostatic testing, and final inspection, all culminating in meticulous packaging. To ensure maximum integrity, each welded pipe undergoes at least one stress relief heat treatment post-formation and welding. Daxun consistently employs only the finest filler materials during the welding process, underscoring our commitment to premium quality.
Ti-6Al-4V Titanium Pipe - The Unmatched Grade 5 Titanium TubeTitanium Alloy - (UNS R56400)
Introduction
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 marvel leverages aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Renowned for its exceptional strength, this alloy thrives even at temperatures as low as 800°F (427°C). ATI Ti-6Al-4V, Grade 5 is indispensable for annealing, solution treating, and aging applications, finding critical use in jet engine compressor blades, disks, and rings, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and high-strength-to-weight ratio critical forgings.
Crafted with precision, the alloy commences its journey through vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting is meticulously performed in one or two vacuum arc steps, ensuring unparalleled purity.
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), when peak hardness, tensile strength, and fatigue strength are imperative.
DAXUN 6-4 Grade 5 Titanium Tube offers versatility in heat treatment methods.
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 Achieve the pinnacle of mechanical properties with small cross sections and rapid quenching in the solution treated and aged condition. Note that larger cross-sections or delayed quenching may yield slightly less optimal results.
HardnessTypical hardness in the annealed state ranges from Rockwell C 30-34, transitioning to approximately Rockwell C 35-39 in the solution and aged state.
Forgeability/Formability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, is expertly forged at a precise temperature of 1,750°F (954°C) and achieves its final forging quality at 1,450°F (788°C). To ensure superior performance, a reduction of at least 35% is strongly recommended.
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, presents challenges in forming at room temperature, even when annealed. Therefore, for optimal results, severe forming operations like bending or stretching should be conducted on the annealed material at temperatures reaching up to 1,200°F (649°C) without altering its mechanical integrity. Hot sizing or forming can be efficiently achieved through creep forming at temperatures ranging from 1,000 to 1,200°F (538 to 649°C).
Machinability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, can be machined using techniques suitable for austenitic stainless steels. Employ slow speeds, high feeds, and ensure robust tool rigidity, complemented by the use of copious amounts of non-chlorinated cutting fluids for best results.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, exhibits excellent weldability in both the annealed and solution and partially aged conditions, with aging completed during post-weld heat treatment.
To avoid contamination with oxygen, nitrogen, and hydrogen, it is essential to take proper precautions. Fusion welding can be effectively performed in an inert gas-filled chamber or by utilizing an inert gas tail shield over the molten metal and adjacent hot zones. Spot welding, seam welding, and flash welding can all be performed without the need for a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, must be handled with care to prevent contamination from hydrogen during improper pickling and the absorption of oxygen, nitrogen, and carbon during processes such as forging, heat treating, and brazing. Such contamination can reduce ductility and negatively impact notch sensitivity and formability.
