Daxun Alloy's Pure Titanium Grade 1 Titanium Tubes Include:
Seamless Titanium Tubes and Welded Titanium Tubes, which exhibit exceptional ductility and cold formability, making them perfect for deep drawing applications. Grade 1 Titanium Tubes are celebrated for their outstanding resistance to general and seawater corrosion, as well as their superb resilience against oxidizing, neutral, and slightly reducing media, including chlorides.
Titanium's low density (roughly half that of nickel-based alloys), combined with its high strength, lightweight nature, and remarkable corrosion resistance, makes it a superior choice for a multitude of demanding chemical environments. The execution standards include: 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)
Frequently employed in industrial applications, Grade 2 Titanium Tube offers an excellent compromise of moderate strength and notable ductility. Its exceptional corrosion resistance thrives under both highly oxidizing and slightly reducing conditions, including chlorides. This versatility makes it indispensable in chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping solutions.
Fabrication
Titanium Grade 2 responds exceptionally well to cold forming using conventional methods. It is easily machinable, though it requires meticulous maintenance of sharp tools and abundant use of coolant. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are recommended.
Stock Availability
Daxun Alloys maintains a robust stock of CP 2 Grade Titanium Seamless and Welded Pipes, available in a diverse range of sizes.
Weight Reduction
CP 2 grade titanium tubes, with their low density and high strength-to-weight ratio, are ideal for applications necessitating weight reduction without compromising overall strength. They are cold formable, possess good ductility, and can be welded using standard TIG and MIG processes, with the necessary precaution of inert gas shielding to prevent embrittlement of the weld zone.
Crystal Structure
At room temperature, ASTM B338 Grade 2 Titanium Tubes exhibit an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. This structure transforms into beta (body-centered cubic) at approximately 885°C (1625°F). The transformation temperature may vary based on the impurities or alloying additions. Alloying elements subdivide the single temperature of equilibrium transformation into two temperature zones: the alpha transformation zone, below which the alloy is all alpha, and the beta transformation zone, above which the alloy is all beta. Between these temperatures, 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 using either a hot extrusion process or an oblique rolling and piercing process, followed by multiple cold rolling stages. These titanium seamless tubes maintain continuous perimeters throughout all manufacturing stages. The comprehensive manufacturing process includes: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting and feeding, hot extrusion or oblique rolling plus 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 exemplifies precision and quality, crafted from annealed flat-rolled steel plate or steel strip via the efficient automatic arc welding (TIG) process. The meticulous production stages encompass: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing and sizing, straightening, second eddy current testing, caliper marking, cutting, ultrasonic testing, hydrostatic testing, and concluding with final inspection and packaging. To ensure superior durability, welded pipes undergo at least one stress relief heat treatment post-forming and welding. Notably, Daxun utilizes filler materials during the welding process to enhance the product's integrity.
Ti-6Al-4V Titanium Pipe - Premier Grade 5 Titanium TubeTitanium Alloy - (UNS R56400): The Pinnacle of Performance
Introduction to Excellence
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), is a celebrated titan in the industry. This duplex alpha+beta titanium alloy, fortified with aluminum as the alpha stabilizer and vanadium as the beta stabilizer, exhibits remarkable strength and versatility, capable of operating efficiently at temperatures as low as 800°F (427°C). ATI Ti-6Al-4V, Grade 5, is expertly utilized for processes such as annealing, solution treating, and aging. Its applications are diverse and critical, ranging from compressor blades, disks, and rings for jet engines to fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and high-strength-to-weight ratio forgings.
The alloy is initially precision-crafted using advanced techniques such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM), followed by remelting in one or two vacuum arc stages for optimal quality.
Specifications: Setting Industry Standards
• ASTM B338 - Standard Heat Treatable Titanium Tube: Ensuring Excellence
• AMS 4928 - Forgings and Forging Stock (Annealed): Precision at Its Best
• AMS 4965 - Forgings (Solution Treated and Aged): Advanced Strength
• AMS 4967 - Forgings (Annealed, Heat Treatable): Versatile and Reliable
Physical Properties: Defining Superior QualityTi-6Al-4V Titanium Tube Melting Range: 2,800-3,000°F (1,538 - 1,649°C): Exceptional Heat Resistance
Density: 0.160 lb/in³; 4.47 g/cm³: Lightweight with Superior Strength
Beta Transus Temperature: 1830°F (± 25°); 999°C (± 14°): Optimal Performance Metrics
Heat Treatment: Enhancing Material Properties Annealed at 1,700-1,900°F (927 - 1,038°C) to achieve remarkable hardness, tensile strength, and fatigue strength.
The versatile DAXUN 6-4 Grade 5 Titanium Tube can undergo various heat treatment methods to achieve desired properties.
1. Annealing: 1,275 - 1,400°F (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling for balanced properties.
2. Stress Relief Annealing: 1,000 - 1,200°F (538 - 649°C) for 1 to 8 hours, air or furnace cooling to relieve internal stresses.
3. Solution Heat Treating: 1,675 - 1,750°F (913 - 954°C) for 1 hour, followed by water quenching for optimal toughness.
4. Aging: 975 - 1,025°F (524 - 552°C) for 4 to 8 hours with air cooling to enhance hardness and durability.
Optimum Properties: Achieving the Pinnacle of Performance In the solution treated and aged condition, rapid quenching of small cross sections yields optimal properties, whereas larger sections or delayed quenching may result in suboptimal characteristics.
Hardness: Measuring ExcellenceThe typical hardness in the annealed condition ranges from Rockwell C 30-34, escalating to approximately Rockwell C 35-39 in the solution treated and aged condition.
Forgeability/Formability: Crafting with Precision DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is expertly forged at a precise temperature of 1,750°F (954°C), with the final forging meticulously completed at 1,450°F (788°C). To achieve optimal results, a reduction of at least 35% is highly recommended.
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube presents challenges when forming at room temperature, even in the annealed state. However, for severe forming processes such as bending or stretching, the material can be expertly manipulated at temperatures up to 1,200°F (649°C) without altering its mechanical properties. For hot sizing or forming, creep forming is efficiently employed at temperatures 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 applicable to austenitic stainless steels. This involves the use of slow speeds, high feeds, and superior tool rigidity, along with substantial amounts of non-chlorinated cutting fluids to ensure precision and quality.
Weldability DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube exhibits exceptional weldability in both the annealed and solution and partially aged conditions. Post-weld heat treatment, including aging,
is performed to achieve desired properties. Careful precautions are necessary to prevent contamination by oxygen, nitrogen, and hydrogen. Fusion welding is effectively conducted in an inert gas-filled chamber or with an inert gas tail shield covering the molten metal and adjacent heated areas. Techniques such as spot welding, seam welding, and flash welding can be executed without the necessity for a protective atmosphere.
Special Considerations DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube requires careful handling to avoid contamination from hydrogen due to improper pickling. Additionally, the absorption of oxygen, nitrogen, and carbon during processes like forging, heat treating, and brazing can compromise ductility, increase notch sensitivity, and affect formability, necessitating stringent control measures.