Daxun Alloy's pure titanium Grade 1 titanium tubes include:
seamless titanium tubes and welded titanium tubes, which boast superior ductility and cold formability, making them ideal for deep drawing. Grade 1 titanium tubes are celebrated for their robust general and seawater corrosion resistance, as well as their exceptional resistance to oxidizing, neutral, and slightly reducing mediums (solutions) (including chlorides).
Titanium's impressively low density (approximately half that of nickel-based alloys), combined with its high strength, lightweight nature, and unparalleled corrosion resistance, make it an exceptional choice for tackling various harsh chemical environments. Adhering to standards including: 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)
Grade 2 titanium tubes are widely acclaimed in industrial applications, offering a perfect blend of moderate strength and reasonable ductility. They ensure excellent corrosion resistance in both highly oxidizing and slightly reducing conditions (including chlorides). These tubes provide outstanding corrosion protection in chemical and offshore industries, as well as in aircraft manufacturing, where strength and formability are crucial. They are also utilized in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping systems.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using conventional methods. It can be easily machined, provided that sharp tools are maintained and liberal use of coolant is ensured. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are recommended.
Stock Availability
Daxun Alloys maintains a comprehensive stock of CP 2 Grade Titanium Seamless and Welded Pipes in an array of sizes.
Weight Reduction
CP 2 grade titanium tubes offer low density and a remarkable strength-to-weight ratio, making them ideal for applications requiring weight reduction without compromising overall strength. These tubes exhibit excellent cold formability and ductility and can be welded using standard TIG and MIG processes, with inert gas shielding to prevent embrittlement in the weld zone.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes exhibit an alpha (hexagonal close-packed) crystal structure, similar to commercially pure titanium grades 1 and 3. At approximately 885°C (1625°F), they transform into a beta (body-centered cubic) structure. This transformation temperature may vary with the type and amount of impurities or alloying additions. The inclusion of alloying elements distinguishes the single equilibrium transformation temperature into two 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 zones, both alpha and beta forms 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 through hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling procedures. Titanium seamless tubes must maintain continuous perimeters throughout all manufacturing stages. The comprehensive manufacturing process encompasses: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting and 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
At Jiangsu Daxun Alloy Co., Ltd., our ASTM B338 Grade 2 titanium welded pipe epitomizes cutting-edge craftsmanship. Crafted from annealed flat-rolled steel plate or steel strip, each pipe undergoes the meticulous TIG automatic arc welding process. Our production journey includes uncoiling titanium plates, precision shearing, butt welding, thorough cleaning, seamless pipe forming, high-precision TIG welding, and stringent eddy current testing. We follow this with pre-sizing, controlled annealing, precision reducing and sizing, straightening, a second round of eddy current testing, caliper marking, cutting, ultrasonic testing, hydrostatic testing, culminating in a final rigorous inspection and pristine packaging. For optimal integrity, welded pipes are subjected to at least one stress relief heat treatment post-forming and welding. Notably, Daxun ensures no filler materials are utilized during the welding stage, guaranteeing unparalleled quality and performance.
Product Name: Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Product: Titanium Alloy - (UNS R56400)
Section: Introduction
DAXUN proudly presents the Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), renowned as the premier titanium alloy. This sophisticated duplex alpha+beta titanium alloy leverages aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Exceptionally robust, this alloy excels at low temperatures reaching 800°F (427°C). ATI Ti-6Al-4V, Grade 5 alloy stands out for its applications in annealing, solution treating, and aging processes. Whether it's compressor blades, disks, and rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, or critical high strength-to-weight ratio forgings, this alloy delivers exemplary performance.
This high-performance alloy is initially melted using state-of-the-art methods like vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM), followed by precision remelting in one or two vacuum arc steps to ensure superior quality and consistency.
Section: 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)
Section: Physical Properties
Ti-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°)
Section: Heat Treatment
Achieve unparalleled hardness, tensile strength, and fatigue strength by annealing at 1,700-1,900°F (927 - 1,038°C).
The versatile DAXUN 6-4 Grade 5 Titanium Tube offers a variety of heat treatment options tailored to your specific needs.
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, followed by a water quench.
4. Aging: 975 - 1,025°F; (524 - 552°C), 4 to 8 hours, air cool.
Section: Optimum Properties
Achieve optimal properties with small cross sections and rapid quenching in the solution treated and aged condition. Note that larger cross-section sizes or delayed quenching may yield less than optimal properties.
Section: Hardness
Typical hardness values are Rockwell C 30-34 in the annealed condition and Rockwell C 35-39 in the solution and aged condition.
Section: Forgeability/Formability
Introducing the DAXUN Ti-6Al-4V Titanium Tube, renowned for its exceptional Grade 5 quality. This titanium marvel is forged at a high temperature of 1,750°F (954°C), with a crucial final forging phase at 1,450°F (788°C). For optimal performance, it is recommended to achieve a reduction of at least 35%, ensuring robustness and reliability.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, presents significant challenges when forming at room temperature, even in its annealed state. To facilitate severe forming operations such as bending or stretching, the material can be annealed and processed at elevated temperatures up to 1,200°F (649°C), maintaining its mechanical integrity. Additionally, creep forming is a viable technique for hot sizing or forming within the temperature range of 1,000 to 1,200°F (538 to 649°C).
Precision Machinability
Experience superior machinability with the DAXUN Ti-6Al-4V Titanium Tube, Grade 5. Utilizing methods suited for austenitic stainless steels, this tube can be effectively machined with slow speeds, high feeds, and excellent tool rigidity. A generous application of non-chlorinated cutting fluids further enhances the machining process, ensuring precision and efficiency.
Exceptional Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, exhibits remarkable weldability in both annealed and solution or partially aged conditions. Subsequent aging processes
are completed during post-weld heat treatment. To prevent contamination from oxygen, nitrogen, and hydrogen, strict precautions are necessary. Fusion welding is best performed in an inert gas-filled chamber or with an inert gas tail shield protecting the molten metal and surrounding hot zones. Additionally, spot welding, seam welding, and flash welding can all be executed without necessitating a protective atmosphere, ensuring versatility in welding methods.
Critical Special Considerations
For the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, it is imperative to avoid hydrogen contamination from improper pickling processes and the absorption of oxygen, nitrogen, and carbon during forging, heat treating, and brazing. Such contamination may detrimentally affect ductility, reduce formability, and impair notch sensitivity, making careful handling and processing crucial for maintaining material integrity.
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