Daxun Alloy's Pure Titanium Grade 1 Tubes Include:
Our seamless and welded titanium tubes exhibit incredible ductility and cold formability, making them perfect for deep drawing applications. Renowned for their superior general and seawater corrosion resistance, Grade 1 tubes also excel in oxidizing, neutral, and slightly reducing environments, including chlorides.
Titanium's low density-roughly half that of nickel-based alloys-combined with its high strength, lightweight nature, and exceptional corrosion resistance, makes it the ideal choice for challenging chemical conditions. 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)
Widely utilized in industrial applications, Grade 2 titanium tubes offer a remarkable balance of moderate strength and excellent ductility. They provide exceptional corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. These tubes are indispensable in the chemical and offshore industries, aircraft manufacturing, heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and pipelines.
Fabrication
Titanium Grade 2 is highly responsive to cold forming with standard methods. It can be easily machined, requiring sharp tools and liberal coolant usage. Similar to machining austenitic stainless steels, the cuts should be deep and continuous with slow feeds and speeds.
Stock Availability
Daxun Alloys maintains an extensive inventory of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes.
Weight Reduction
CP 2 grade titanium tubes boast low density and a high strength-to-weight ratio, ideal for applications demanding weight reduction without compromising strength. They are cold formable, highly ductile, and can be welded using conventional TIG and MIG methods, although inert gas shielding is essential to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes feature an alpha (hexagonal close-packed) crystal structure, similar to commercially pure titanium grades 1 and 3. At approximately 885°C (1625°F), this structure transforms to a beta (body-centered cubic) form. Alloying elements can adjust this transformation temperature, dividing it into two 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 temperatures, both alpha and beta forms coexist. Typical 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 crafted from hollow blanks through hot extrusion or oblique rolling and piercing processes, followed by multiple cold rolling stages. Throughout manufacturing, seamless tubes maintain continuous perimeters. The process includes: sponge titanium vacuum arc melting, ingot blanking for hollow blanks, cleaning, cutting, hot extrusion or oblique rolling and piercing, degreasing, drying, cutting, online annealing, 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
Discover the superior craftsmanship of Daxun's ASTM B338 Grade 2 titanium welded pipe. Engineered from annealed flat-rolled steel plate or steel strip, this pipe is produced using the precision-driven automatic arc welding (TIG) process. Our meticulous production stages include: titanium plate uncoiling, shearing, butt welding, cleaning, pipe forming, TIG welding, eddy current testing, pre-sizing, annealing, precision reducing, sizing, straightening, eddy current testing, caliper marking, cutting, ultrasonic testing, hydrostatic testing, final inspection, and packaging. Each welded pipe undergoes essential stress relief heat treatment post forming and welding. At Daxun, we ensure the integrity of the welding process without using any filler materials.
Introducing the Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube, epitomizing excellence in titanium tubing.
Experience the remarkable properties of Titanium Alloy - (UNS R56400), known for its high strength and versatile applications.
Introduction
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) stands as the most sought-after titanium alloy. This exceptional alloy is a duplex alpha+beta titanium blend, featuring aluminum as the alpha stabilizer and vanadium as the beta stabilizer. Renowned for its high strength, it performs admirably at low temperatures around 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is ideal for annealing, solution treating, and aging processes. 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 demanding a high strength-to-weight ratio.
This alloy's initial melting is executed through advanced methods like vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Subsequent remelting involves one or two vacuum arc steps to ensure superior quality.
Specifications
• ASTM B338 - Standard Heat Treatable Titanium Tube: An industry benchmark for quality and durability.
• AMS 4928 - Forgings and Forging Stock (Annealed): Ensure resilient and reliable performance.
• AMS 4965 - Forgings (Solution Treated and Aged): Optimal for applications requiring enhanced toughness.
• AMS 4967 - Forgings (Annealed, Heat Treatable): Perfect for precise and demanding engineering needs.
Physical Properties
Ti-6Al-4V Titanium Tube Melting Range: 2,800-3,000°F (1,538 - 1,649°C): Ensuring superior heat resistance.
Density: 0.160 lb/in3; 4.47 g/cm3: A testament to its lightweight yet sturdy nature.
Beta Transus Temperature: 1830°F (± 25°); 999°C (± 14°): Delivering consistent performance under thermal stress.
Heat Treatment
Our DAXUN 6-4 Grade 5 Titanium Tube can be annealed at 1,700-1,900°F (927 - 1,038°C) to achieve high hardness, tensile strength, and fatigue strength.
DAXUN 6-4 Grade 5 Titanium Tube is versatile and can undergo various heat treatments to meet specific requirements.
1. Annealing: 1,275 -1,400°F (691 - 760°C), ½ to 2 hours, air or furnace cool: Enhancing material stability.
2. Stress Relief Annealing: 1,000 -1,200°F (538 - 649°C), 1 to 8 hours, air or furnace cool: Reducing internal stresses.
3. Solution Heat Treating: 1,675 -1,750°F (913 - 954°C), 1 hour, water quench: Maximizing strength and durability.
4. Aging: 975 -1,025°F (524 - 552°C), 4 to 8 hours - air cool: Optimizing mechanical properties for specific applications.
Optimum Properties
Our solution treated and aged tubes achieve optimal properties in small cross-sections with rapid quenching. Larger cross-section sizes or delayed quenching may result in less-than-optimal properties, maintaining high-performance standards.
Hardness
In its annealed condition, our titanium tube typically reaches a hardness of Rockwell C 30-34, and approximately Rockwell C 35-39 in its solution and aged state.
Forgeability/Formability
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5-a marvel of engineering forged at temperatures as high as 1,750°F (954°C) with a final forging touch at 1,450°F (788°C). For unparalleled performance and structural integrity, a reduction of at least 35% is recommended during the forging process.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, designed for those demanding the highest quality, proves to be a challenge to form at room temperature, even after annealing. However, severe forming tasks such as bending or stretching are achievable on the annealed material at temperatures reaching up to 1,200°F (649°C) without altering its mechanical properties. For precision hot sizing or forming, creep forming can be employed within the temperature range of 1,000 to 1,200°F (538 to 649°C).
Machinability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, offers excellent machinability. It can be processed using methods suited for austenitic stainless steels, emphasizing slow cutting speeds, high feed rates, robust tool rigidity, and ample use of non-chlorinated cutting fluids to ensure optimal results.
Weldability
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5, is highly weldable, whether in the annealed or solution and partially aged conditions. Post-weld aging further enhances its properties.
To maintain the tube's superior quality, it is essential to avoid contamination from oxygen, nitrogen, and hydrogen. Fusion welding should be performed in an inert gas-filled chamber or with an inert gas tail shield to protect the molten metal and nearby hot zones. Spot welding, seam welding, and flash welding can also be executed successfully without a protective atmosphere.
Special Considerations
For optimal performance of the DAXUN Ti-6Al-4V Titanium Tube, Grade 5, precautions are necessary to prevent contamination by hydrogen during improper pickling and the absorption of oxygen, nitrogen, and carbon during forging, heat treating, brazing, and similar processes. Such contamination can degrade ductility and adversely affect notch sensitivity and formability.
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