Daxun Alloy's Pure Titanium Grade 1 Tubes Include:
Seamless titanium tubes and welded titanium tubes, each renowned for their exceptional ductility and cold formability, making them ideal for deep drawing applications. Grade 1 titanium tubes exhibit outstanding general and seawater corrosion resistance, as well as excellent resistance to oxidizing, neutral, and slightly reducing media, including chloride solutions.
Titanium's low density-about half that of nickel-based alloys-combined with its high strength, light weight, and superior corrosion resistance, makes it the material of choice for a variety of harsh chemical conditions. These tubes adhere to stringent execution standards, including 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)
This titanium tube is the preferred choice for industrial applications, thanks to its balanced combination of moderate strength and ductility. It offers exceptional corrosion resistance in both highly oxidizing and slightly reducing environments, including chlorides. Grade 2 titanium is widely used in the chemical and offshore industries, as well as in aircraft manufacturing where strength and formability are critical. It's also utilized in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping.
Fabrication
Titanium Grade 2 responds excellently to cold forming using standard methods. It is readily machinable, but careful attention to maintaining sharp tools and liberal use of coolant is necessary. Similar to machining austenitic stainless steels, cuts should be deep and continuous with slow feeds and speeds to ensure optimal performance.
Stock Availability
Daxun Alloys maintains a robust inventory of CP Grade 2 Titanium Seamless and Welded Pipes in various sizes to meet diverse customer needs.
Weight Reduction
With a low density and an impressive strength-to-weight ratio, CP Grade 2 titanium tubes are perfect for applications requiring weight reduction without compromising strength. They are easily cold formable, possess good ductility, and can be welded using conventional TIG and MIG processes, though inert gas shielding is essential to prevent embrittlement of the weld zone.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes possess an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. At approximately 885°C (1625°F), this structure transitions to a beta (body-centered cubic) form. This transformation temperature can be influenced by impurities or alloying elements, which may also divide the transformation into two separate temperature zones: the alpha transformation zone and the beta transformation zone. Within these zones, the material exists in alpha and beta forms, respectively. For Grade 2 titanium, typical alpha and beta transformation temperatures are 890°C (1635°F) and 913°C (1675°F).
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 stages. Throughout every production phase, seamless tubes maintain continuous perimeters. The intricate manufacturing process includes sponge titanium vacuum arc melting, ingot blanking, hollow blank 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
Daxun's ASTM B338 Grade 2 Titanium Welded Pipe is crafted with precision from annealed flat-rolled steel plate or steel strip through the advanced automatic arc welding (TIG) process. Our meticulous production processes include 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. To ensure optimal integrity, welded pipes undergo at least one stress relief heat treatment post-formation and welding. Remarkably, Daxun utilizes filler materials during the welding process, ensuring superior quality and durability.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400)
Introduction
DAXUN's Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), stands at the pinnacle of titanium alloys. This duplex alpha+beta titanium alloy leverages aluminum as the alpha stabilizer and vanadium as the beta stabilizer, providing high strength even at temperatures as low as 800°F (427°C). ATI Ti-6Al-4V, Grade 5 alloy is ideal for annealing, solution treating, and aging processes. It finds extensive applications in compressor blades, disks, and rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and critical forgings that demand a high strength-to-weight ratio.
The alloy undergoes initial melting using techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Remelting involves one or two additional steps of vacuum arc processing.
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 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°)
Heat Treatment
Annealing at 1,700-1,900°F (927 - 1,038°C) is recommended when high hardness, tensile strength, and fatigue strength are required.
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options.
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
Small cross-sections with rapid quenching achieve optimal properties in the solution treated and aged condition. For larger cross-sections or delayed quenching, the properties may vary.
Hardness
Typical hardness in the annealed condition is Rockwell C 30-34, while in the solution treated and aged condition it reaches approximately Rockwell C 35-39.
Forgeability/Formability
Experience the exceptional durability and strength of DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube. Forged at a high temperature of 1,750°F (954°C) and completed at a final forging temperature of 1,450°F (788°C), this titanium tube achieves its superior qualities through a recommended reduction of at least 35%, ensuring peak performance.
Unlock the potential of DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube for complex forming operations. While challenging to form at room temperature, even when annealed, severe forming tasks such as bending or stretching can be efficiently executed on annealed material at elevated temperatures up to 1,200°F (649°C) without altering its mechanical properties. Additionally, utilize creep forming for precise hot sizing or shaping at temperatures between 1,000 and 1,200°F (538 to 649°C).
Advanced Machinability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube boasts excellent machinability comparable to that of austenitic stainless steels. Employ slow speeds, high feeds, and ensure robust tool rigidity. Leverage the effectiveness of large quantities of non-chlorinated cutting fluids to achieve optimal machining results.
Effortless Weldability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube offers remarkable weldability whether in annealed or solution-treated conditions. Its strong weldable nature is enhanced through post-weld heat treatment.
Take necessary precautions to avoid contamination from oxygen, nitrogen, and hydrogen. Perform fusion welding in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and nearby hot zones. Utilize spot welding, seam welding, and flash welding methods without requiring a protective atmosphere.
Crucial Considerations
Be mindful of contamination risks for DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube. Potential hydrogen contamination from improper pickling, along with absorption of oxygen, nitrogen, and carbon during forging, heat treating, and brazing, can compromise ductility and negatively impact notch sensitivity and formability.
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