Daxun Alloy's pure titanium Grade 1 titanium tubes include:
Our seamless and welded titanium tubes, renowned for their superb ductility and cold formability, are ideal for deep drawing applications. Grade 1 titanium tubes excel in general and seawater corrosion resistance, providing unparalleled protection against oxidizing, neutral, and slightly reducing environments, including chlorides.
With titanium's low density-approximately half that of nickel-based alloys-and its remarkable strength, light weight, and corrosion resistance, it stands as the ultimate choice for stringent chemical environments. Our products comply with the following standards: 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)
Grade 2 titanium tubes are the industry standard for a wide range of applications due to their balanced strength and ductility. They offer exceptional corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. These tubes are indispensable in chemical and offshore industries, aerospace manufacturing, heat exchangers, hypochlorite systems, fire and ballast water systems, industrial components, and CPI equipment.
Fabrication
Titanium Grade 2 is highly responsive to cold forming with standard methods. It can be easily machined, but maintaining sharp tools and using plenty of coolant is crucial. Similar to machining austenitic stainless steels, cuts should be deep and continuous with slow feeds and speeds.
Stock Availability
Daxun Alloys maintains a diverse stock of CP 2 Grade Titanium Seamless and Welded Pipes in various sizes.
Weight Reduction
CP 2 grade titanium tubes offer a superior strength-to-weight ratio, ideal for applications requiring weight reduction without compromising strength. They are cold formable, exhibit excellent ductility, and can be welded using conventional TIG and MIG processes, with inert gas shielding necessary to prevent weld zone embrittlement.
Crystal Structure
At room temperature, ASTM B338 Grade 2 titanium tubes feature an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. At approximately 885°C (1625°F), it transitions to a beta (body-centered cubic) structure. This transformation temperature varies with impurities or alloying elements, dividing the equilibrium transformation into alpha and beta zones. 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
Our ASTM B338 Grade 2 titanium seamless tubes undergo a meticulously controlled manufacturing process. Starting from hollow blanks produced by hot extrusion or oblique rolling and piercing, these tubes are subsequently subjected to multiple cold rolling procedures. The seamless tubes feature continuous perimeters throughout production, involving processes such as vacuum arc melting, hot extrusion, oblique rolling, degreasing, and vacuum annealing, culminating in final inspections and packaging.
Grade 2 Titanium Welded Pipe Manufacturing Process
At Jiangsu Daxun Alloy Co., Ltd., we proudly present the ASTM B338 Grade 2 titanium welded pipe, meticulously crafted from annealed flat-rolled steel plate or steel strip using the sophisticated automatic arc welding (TIG) process. Our comprehensive production pipeline includes several critical stages, namely: 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 mandatory stress relief heat treatment post-forming and welding, ensuring unparalleled durability and performance. At Daxun, we maintain the highest standards by incorporating appropriate filler materials during the welding process.
Experience premium quality with our Ti-6Al-4V Titanium Pipe, also known as Grade 5 Titanium Tube.Our elite Titanium Alloy - (UNS R56400) sets the benchmark for industry excellence.
Introduction
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), the epitome of titanium alloys. Recognized for its duplex alpha+beta titanium alloy composition, it integrates aluminum as the alpha stabilizer and vanadium as the beta stabilizer. This high-strength marvel operates efficiently at low temperatures around 800°F (427°C). The ATI Ti-6Al-4V, Grade 5 alloy is engineered for annealing, solution treating, and aging processes, making it ideal for a broad spectrum of applications such as compressor blades, disks, and rings for jet engines; fuselage and space capsule components; pressure vessels; *** casings; helicopter rotor hubs; fasteners; and critical forgings where a high strength-to-weight ratio is paramount.
Our alloy is initially melted utilizing advanced methods such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Subsequent remelting is performed through one or two vacuum arc stages to ensure superior quality.
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 PropertiesThe Ti-6Al-4V Titanium Tube boasts a Melting Range of 2,800-3,000°F (1,538 - 1,649°C), exemplifying its resistance to extreme temperatures.
With a Density of 0.160 lb/in³ (4.47 g/cm³), our titanium tube offers exceptional strength without the weight.
Beta Transus Temperature: 1830°F (± 25°); 999°C (± 14°), indicative of its robust thermal properties.
Heat Treatment For applications demanding high hardness, tensile strength, and fatigue strength, our titanium tube is annealed at 1,700-1,900°F (927 - 1,038°C).
DAXUN's 6-4 Grade 5 Titanium Tube offers versatile heat treatment options to meet diverse application needs.
1. Annealing: 1,275 -1,400°F (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling, ensuring optimal material properties.
2. Stress Relief Annealing: Conducted at 1,000 -1,200°F (538 - 649°C) for 1 to 8 hours, with air or furnace cooling to relieve internal stresses.
3. Solution Heat Treating: Performed at 1,675 -1,750°F (913 - 954°C) for 1 hour, followed by a rapid water quench.
4. Aging: Executed at 975 -1,025°F (524 - 552°C) for 4 to 8 hours, then air-cooled, to achieve the desired mechanical properties.
Optimum Properties Enhanced 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 slightly reduced properties.
HardnessIn the annealed state, our titanium tube typically exhibits a hardness of Rockwell C 30-34. When solution treated and aged, it achieves a higher hardness of approximately Rockwell C 35-39.
Forgeability/Formability The DAXUN Ti-6Al-4V Titanium Tube, also known as Grade 5 Titanium Tube, showcases exceptional forgeability and formability when handled with precision. It is typically forged at a temperature of 1,750°F (954°C) with a final forging stage occurring at 1,450°F (788°C). To achieve optimal results, a reduction of at least 35% is highly recommended.
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube presents challenges in forming at room temperature, even post-annealing. Severe forming processes such as bending or stretching can be efficiently conducted on annealed material at elevated temperatures up to 1,200°F (649°C) without altering its mechanical integrity. For hot sizing or forming, creep forming is an ideal technique, effective at temperatures ranging from 1,000 to 1,200°F (538 to 649°C).
Machinability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, demonstrates excellent machinability when employing machining methods designed for austenitic stainless steels. Optimal machining conditions include slow speeds, high feed rates, strong tool rigidity, and abundant use of non-chlorinated cutting fluids.
Weldability The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube is highly weldable in either annealed or solution-treated and partially aged states. Welding efficiency and strength can be further enhanced through a post-weld heat treatment.
During welding, it is critical to prevent contamination by oxygen, nitrogen, and hydrogen. Fusion welding can be effectively performed within an inert gas-filled chamber or using an inert gas tail shield over the molten metal and adjacent hot zones. Additionally, spot welding, seam welding, and flash welding can be executed without the necessity for a protective atmosphere.
Special Considerations The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube requires careful handling to prevent contamination. Improper pickling or exposure to oxygen, nitrogen, and carbon during processes such as forging, heat-treating, and brazing can lead to the absorption of hydrogen. This contamination can negatively impact ductility, notch sensitivity, and overall formability of the material.
