Discover the exceptional craftsmanship of Daxun Alloy's pure titanium Grade 1 tubes:
Our seamless and welded titanium tubes boast unparalleled ductility and cold formability, making them perfect for deep drawing applications. Renowned for their superior general and seawater corrosion resistance, Grade 1 titanium tubes also offer outstanding resilience against oxidizing, neutral, and slightly reducing media, including chloride solutions.
Titanium is distinguished by its low density (approximately half that of nickel-based alloys), high strength, lightweight nature, and remarkable corrosion resistance, making it ideal for harsh chemical environments. Our tubes meet several stringent standards: 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)
Grade 2 titanium tubes are the preferred choice for industrial applications, offering an excellent balance of moderate strength and ductility. These tubes exhibit superb corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. Known for their versatility, they are used extensively in the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, CPI equipment, and piping.
Fabrication
Titanium Grade 2 is highly responsive to cold forming using standard techniques. It is easily machined with consistent maintenance of sharp tools and ample use of coolant. Similar to machining austenitic stainless steels, cuts should be deep and continuous, with slow feeds and speeds for optimal results.
Stock Availability
Daxun Alloys maintains a diverse inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes to meet your needs.
Weight Reduction
With their low density and high strength-to-weight ratio, CP 2 grade titanium tubes are perfect for applications demanding weight reduction 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 avoid embrittlement of the weld zone.
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. Upon reaching approximately 885°C (1625°F), it transitions to a beta (body-centered cubic) structure. The transformation temperature varies with the type and amount of impurities or alloying elements, which also introduces two distinct temperature zones: the alpha transformation zone (below which the alloy remains all alpha) and the beta transformation zone (above which the alloy is all beta). Between these two zones, both alpha and beta phases coexist. For Grade 2 titanium, typical alpha and beta transformation temperatures are 890°C (1635°F) and 913°C (1675°F), respectively.
Grade 2 Titanium Seamless Pipe Manufacturing Process
Daxun's ASTM B338 Grade 2 seamless titanium tubes are meticulously crafted from hollow blanks using hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling operations. Throughout manufacturing, these tubes maintain continuous perimeters. The comprehensive production process involves: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting, feeding, hot extrusion or oblique rolling with 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 meticulously crafted from annealed flat-rolled steel plate or steel strip using the advanced automatic arc welding (TIG) process. Our comprehensive production process includes: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, caliper marking, cutting, ultrasonic testing, hydrostatic testing, final inspection, and secure packaging. Post-formation and welding, these welded pipes undergo at least one stress relief heat treatment to ensure impeccable quality. Notably, Daxun refrains from using any filler materials during the welding process, ensuring purity and unparalleled performance.
Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube
Titanium Alloy - (UNS R56400)
Introduction
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), stands as the premier titanium alloy, celebrated for its duplex alpha+beta structure, utilizing aluminum as the alpha stabilizer and vanadium as the beta stabilizer. This high-strength marvel sustains functionality at temperatures as low as 800°F (427°C). ATI Ti-6Al-4V, Grade 5 alloy is optimally used for annealing, solution treating, and aging. Its applications span across compressor blades, disks, and rings for jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and critical forgings - all demanding an exceptional strength-to-weight ratio.
The alloy's initial melting is executed through vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Subsequent remelting is conducted via one or two vacuum arc steps to ensure purity and consistency.
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
Annealed at 1,700-1,900°F (927 - 1,038°C) to achieve superior hardness, tensile strength, and fatigue resistance.
DAXUN 6-4 Grade 5 Titanium Tube offers versatile heat treatment options tailored to 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 with small cross sections and rapid quenching in the solution treated and aged condition. Larger cross-sections or delayed quenching may yield properties less than optimal.
Hardness
In the annealed condition, typical hardness ranges from Rockwell C 30-34, and in the solution and aged condition, it ranges from Rockwell C 35-39.
Forgeability/Formability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is a marvel of engineering, forged meticulously at a high temperature of 1,750°F (954°C) and completed at 1,450°F (788°C). For optimal results, a reduction of at least 35% is strongly recommended, ensuring the highest standards of quality and durability.
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube presents challenges in forming at room temperature, even when annealed. However, for severe operations like bending or stretching, the annealed material can be heated up to 1,200°F (649°C) without compromising mechanical integrity. Additionally, creep forming is ideal for hot sizing or forming within a temperature range of 1,000 to 1,200°F (538 to 649°C), ensuring precision and reliability.
Machinability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube offers excellent machinability when applying methods used for austenitic stainless steels. Employ slow speeds, high feeds, and ensure robust tool rigidity, coupled with generous amounts of non-chlorinated cutting fluids to achieve superior results.
Weldability
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube exhibits excellent weldability in both annealed and solution-treated, partially aged conditions. Post-weld heat treatment facilitates aging, enhancing the material's properties.
To prevent contamination during welding, precautions are crucial to avoid exposure to oxygen, nitrogen, and hydrogen. Fusion welding should be conducted in an inert gas-filled chamber or with an inert gas tail shield over the molten metal and surrounding hot zones. Spot welding, seam welding, and flash welding can also be performed without a protective atmosphere, ensuring versatility in various welding techniques.
Special Considerations
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube requires meticulous attention to prevent contamination by hydrogen during improper pickling and absorption of oxygen, nitrogen, and carbon during processes such as forging, heat treating, and brazing. Such contamination can adversely affect ductility and diminish notch sensitivity and formability, underscoring the necessity for stringent controls.
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