Daxun Alloy's Pure Titanium Grade 1 Titanium Tubes Include:
Seamless and welded titanium tubes from Daxun Alloy exhibit excellent ductility and cold formability, making them ideal for deep drawing applications. Grade 1 titanium tubes are renowned for their outstanding general and seawater corrosion resistance, as well as their exceptional resistance to oxidizing, neutral, and slightly reducing media, including chlorides.
Titanium's low density-approximately half that of nickel-based alloys-combined with its high strength, light weight, and superior corrosion resistance, makes it an optimal choice for various harsh chemical conditions. Our 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 used in industrial applications, Grade 2 titanium tubes deliver a perfect balance of moderate strength and reasonable ductility. These tubes offer excellent corrosion resistance in highly oxidizing and slightly reducing environments, including chlorides, making them ideal for the chemical and offshore industries, as well as aircraft manufacturing. They are also used in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping.
Fabrication
Titanium Grade 2 is well-suited for cold forming using standard techniques. It can be easily machined, provided that sharp tools are used and adequate coolant is applied. Similar to machining austenitic stainless steels, cuts should be deep and continuous with slow feeds and speeds to maintain quality.
Stock Availability
Daxun Alloys maintains a comprehensive stock of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes to meet diverse application needs.
Weight Reduction
CP 2 Grade titanium tubes combine low density with a high strength-to-weight ratio, making them perfect for applications requiring weight reduction without compromising on strength. These tubes are highly ductile, cold formable, and can be welded using conventional TIG and MIG processes, though inert gas shielding is necessary to prevent weld zone embrittlement.
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. Around 885°C (1625°F), this structure transitions to a beta (body-centered cubic) form. The transformation temperature can vary based on impurities or alloying elements, which also create distinct alpha and beta transformation zones. For Grade 2 titanium, typical alpha and beta transformation temperatures are approximately 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. These tubes maintain continuous perimeters throughout the manufacturing process. Key steps in the production of seamless titanium tubes include: sponge titanium vacuum arc melting, ingot blanking to obtain hollow blanks, cleaning, cutting, feeding, 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
Daxun's ASTM B338 Grade 2 titanium welded pipe is meticulously crafted from annealed flat-rolled steel plates or steel strips using an advanced automatic arc welding (TIG) process. The comprehensive production sequence encompasses: 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. Each welded pipe undergoes at least one stress relief heat treatment post-forming and welding to ensure optimal performance. Note that Daxun does not incorporate any filler materials during the welding process, maintaining the integrity and quality of the pipes.
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 most renowned titanium alloy. This duplex alpha+beta titanium alloy is stabilized by aluminum for the alpha phase and vanadium for the beta phase. It boasts remarkable strength and can perform efficiently even at low temperatures around 800°F (427°C). Renowned for its versatility, ATI Ti-6Al-4V, Grade 5 alloy is ideal for annealing, solution treating, and aging. Its applications include compressor blades, disks, and rings for jet engines, components for fuselages and space capsules, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and other critical forgings that benefit from a high strength-to-weight ratio.
The alloy's initial melting process employs vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM) techniques, with subsequent remelting carried out in one or two vacuum arc steps to ensure purity and consistency.
Specifications
• ASTE 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: 1,830°F (± 25°); 999°C (± 14°)
Heat Treatment
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 can undergo various heat treatments to meet specific requirements.
1. Annealing: 1,275 - 1,400°F (691 - 760°C) for ½ to 2 hours, then air or furnace cooling.
2. Stress Relief Annealing: 1,000 - 1,200°F (538 - 649°C) for 1 to 8 hours, followed by air or furnace cooling.
3. Solution Heat Treating: 1,675 - 1,750°F (913 - 954°C) for 1 hour, then water quenching.
4. Aging: 975 - 1,025°F (524 - 552°C) for 4 to 8 hours, followed by air cooling.
Optimum Properties
Small cross-sections quenched rapidly in the solution treated and aged condition exhibit optimal properties. Larger cross-sections or delayed quenching may yield less than optimal results.
Hardness
In the annealed state, the typical hardness is Rockwell C 30-34, while in the solution treated and aged state, it is approximately Rockwell C 35-39.
Forgeability/Formability
Experience unparalleled performance with DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube. Expertly forged at a heat of 1,750°F (954°C) with a final touch at 1,450°F (788°C), we recommend a reduction of at least 35% for superior results. Achieve the pinnacle of strength and reliability with our high-strength, medical-grade titanium tube.
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is engineered for toughness, even at room temperature. Despite its formidable nature, when expertly annealed, it can undergo severe forming operations like bending and stretching at temperatures up to 1,200°F (649°C) without compromising its mechanical prowess. For precision hot sizing or forming, employ creep forming between 1,000 and 1,200°F (538 to 649°C) to maintain integrity.
Machinability
Achieve precision with DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, machinable using advanced methods akin to austenitic stainless steels. Ensure optimal performance by employing slow speeds, high feeds, and robust tool rigidity, alongside generous applications of non-chlorinated cutting fluids.
Weldability
DAXUN Ti-6Al-4V Titanium Tube Grade 5 Titanium Tube showcases superior weldability in both annealed and solution-partially aged states. Post-weld heat treatments perfect the aging process.
During welding, it is crucial to prevent contamination from oxygen, nitrogen, and hydrogen. Utilize fusion welding in an inert gas-filled chamber or employ an inert gas tail shield over the molten metal and adjacent hot zones. Spot welding, seam welding, and flash welding can be performed effectively without protective atmospheres.
Special Considerations
DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube requires careful handling to avoid hydrogen contamination during improper pickling, and the absorption of oxygen, nitrogen, and carbon during forging, heat treating, and brazing. Such contamination can significantly reduce ductility and impair notch sensitivity and formability, necessitating stringent quality controls.
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