Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube

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Customization: Available
Type: Titanium Pipes
Application: Industrial, Medical
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  • Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
  • Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
  • Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
  • Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
  • Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
  • Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
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Overview

Basic Info.

Model NO.
Grade 2 titanium tube
Grade
Gr2 Grade2
Shape
Round
Standards
Astmb861 B862 B338 ASME Sb861 Sb862 Sb338
Titanium Plate Grade
Grade 2 Uns R50400
Transport Package
Wooden Box
Specification
φ 6.35mm-φ 1219mm
Trademark
Daxun
Origin
China
Production Capacity
1000ton

Product Description

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
Product Parameters
 
 Grade 2 Titanium pipe & Tubes Specification ASTM B338 / ASTM B861 / ASTM B862 / ASME SB338 / ASME SB861 / ASME SB862
Grade 2 Titanium pipe & Tubes Grades Commercially pure titanium Grade 2- TA2- USN 50400
Grade 2 Titanium pipe & Tubes Type ot Rolled / Cold Drawn / Welded / ERW
Grade 2 Titanium pipe & Tubes Outer Diameter Size Titanium seamless pipe - φ1.0mm to φ508.3mm
Titanium welded pipe - φ1.0mm to φ1219mm
Grade 2 Titanium pipe & Tubes Wall Thickness 1.0mm-50mm (customizable wall thickness)
Grade 2 Titanium pipe & Tubes Length 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size.
Titanium pipe Form TA2 ' Hollow, U' bent, LSAW, Hydraulic, Straight Tube, Boiler, Round, Tube Coil, Square, Rectangular Etc
Marking  TA2 3.7035 All Titanium Tubes Tubing are marked as follows: Grade, Standard, Thickness, OD, Heat No., Length (Or according to the customer's request.)
Uses of Titanium Alloy Tubes Gas pipes, oil pipes, heat exchanger tubes, boiler tubes, fluid pipes, titanium exhaust pipes.
Grade 2 Titanium pipe & Tubes Pipe Ends Plain Ends / Beveled Ends
Grade 2 Titanium pipe & Tubes Delivery Conditions As Rolled, Cold Drawn, Hot Finish, Stress Relieved, Annealed, Hardened, Tempered
Grade 2 Titanium pipe & Tubes Coating Electropolish, Mechanical Polish, Satin Finish, Passivated
Grade 2 Titanium pipe & Tubes Other Testing ardness Test, Hydrostatic Test, Eddy Current test, Eddy Current, Tensile Test, Flattening, Flare Test, Annealed, Hydrostatic Test, Tempered, Stress Relieved etc.
Grade 2 Titanium pipe & Tubes Dimension All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME
Grade 2 Titanium pipe & Tubes Value Added Services Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
Grade 2 Titanium pipe & Tubes Packaging Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Grade 2 Titanium pipe & Tubes Shipment & Transportation By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
Grade 2 Titanium pipe & Tubes Material Test Certificate Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC
 
Detailed Photos

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube

Advanced Production: Titanium Welded Tube

Grade 2 Titanium Welded Tube: Diameter ranges from 6.0mm to 1219mm, wall thickness ranges from 0.3mm to 30mm (depending on diameter), lengths up to 25000mm, made from Gr1 titanium tube. Welded tubes are crafted from flat rolled billets (tube blanks) using electric tube welding machines with automatic tungsten inert gas (argon) welding, and are heat treated on the mill line. Comprehensive mechanical tests, geometric measurements, 100% ultrasonic and eddy current testing, as well as pneumatic or hydrostatic testing, are conducted before the final packaging according to customer specifications. Manufacturing technology and inspection/testing equipment ensure that thin wall welded tubes adhere to ASTM B 338 and ASME SB 338 specifications.

 

Advanced Production: Titanium Seamless Pipe

  • Grade 2 titanium seamless pipes undergo hot rolling or hot extrusion, followed by straightening, processing of inner and outer diameters, and surface etching. Pipes can be supplied in both heat-treated and non-heat-treated forms. Daxun possesses 100% ultrasonic flaw detection capabilities. Specifications for hot rolled/hot extruded titanium seamless pipes include outer diameters from 1.0mm to 325mm, wall thicknesses from 0.3mm to 50mm, and lengths up to 12000mm. Cold rolled titanium seamless pipes, processed with heat treatment, surface etching, and water pressure testing or ultrasonic flaw detection, feature outer diameters from 6mm to 102mm, wall thicknesses from 0.5mm to 20mm, and lengths up to 9000mm.
    (The above specifications are agreed upon by the manufacturer and the customer based on specific requirements)
Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
 
Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube

Grade 2 Titanium Tube Features

Daxun's Grade 2 Titanium Tube boasts medium strength, superb cold forming properties, excellent weldability, and outstanding resistance to oxidation and corrosion.

  • High Strength Titanium Alloy
  • Excellent Cold Formability
  • Excellent Weldability
  • Exceptional High Oxidation Resistance
  • We stock and sell Grade 2 Titanium Tube, Titanium Welded Tube, Titanium Seamless Tube, Pipe Fittings, and Forged Seamless Tube.
 

A Global Leader in Commercially Pure Titanium Tubes Fabrication Services

Buy Grade 2 Titanium Tubes from Daxun; we offer a diverse range of sizes, starting at 1.0mm diameter, available directly from stock or custom-made to your specifications. We can promptly provide drawn, seamless rolled, or longitudinally welded tubes for a variety of applications from stock. We sell welded or seamless tubes made of Grade 2 Titanium adhering to specifications for heat exchangers such as ASTM B 338, ASME SB 338, DIN, and VD TÜV.

Our CP Grade 2 tubes, with a density of 4.51 g/cm3, are 45% lower in weight than ferrous alloys. This medium-strength alloy, with a typical yield strength of 352 MPa, demonstrates good ductility, formability, and welding properties. The addition of iron and oxygen enhances strength and formability. CP Grade 2 exhibits similar performance to Grade 1, including excellent corrosion resistance under oxidizing conditions but offers higher strength.

Grade 2 Titanium Tubes, known for their commercial purity, provide an excellent balance between strength and ductility. The material is highly tough and is the most commonly used titanium alloy due to its high strength, weldability, and corrosion resistance. Its superior ductility and formability make it ideal for piping systems, heat exchangers, reaction and pressure vessels, and flue gas desulfurization systems. Grade 2 titanium alloys are extensively used in industries such as chemical processing, petrochemical processing, aerospace, and marine.

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
Packaging & Shipping

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
Company Profile

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube

Titanium Seamless Tubes
Daxun produces:
Hot-finished Titanium Tubes
These premium titanium tubes are provided either hot-rolled or hot-extruded, ensuring precision through straightening, machining of both internal and external diameters, and meticulous surface polishing. Available in both heat-treated and non-heat-treated forms, our tubes undergo rigorous 100% ultrasonic flaw detection to guarantee the highest quality.
Titanium Tube Materials Available:
Hot-rolled Titanium Tubes: Featuring outer diameters (OD) from 19mm to 325mm, wall thickness ranging between 9mm and 30mm, and lengths extending up to 5000mm (to be confirmed between the manufacturer and the customer). - Hot-extruded Titanium Tubes: Available with ODs from 50mm to 160mm, wall thicknesses between 7mm and 35mm, and lengths up to 3000mm (to be agreed upon with the customer).
Cold-finished Titanium Tubes
Cold-finished Titanium Tubes are meticulously heat-treated, surface-etched, and subjected to hydrostatic or ultrasonic testing, tailored to meet precise manufacturing specifications. Tubes are supplied with ODs from 6mm to 89mm, wall thicknesses from 0.5mm to 11mm, and lengths up to 6000mm (customized based on agreements between the manufacturer and the customer).

Titanium Welded Pipes
DaXun specializes in the production and supply of titanium pipes with diameters ranging from 12.7mm to 38.1mm (0.47in to 1.5in), wall thicknesses from 0.4mm to 1.65mm (0.016in to 0.065in), and lengths up to 25000mm. Crafted for the engineering and chemical industries, these Gr1, Gr2, and Gr12 titanium alloy pipes are manufactured from flat rolled raw material using automatic tungsten inert gas (argon) welding on electric pipe welders, followed by heat treatment. Each finished pipe undergoes mechanical testing, precise geometrical measurements, 100% ultrasonic and eddy current testing, and either pneumatic or hydrostatic testing. Pipes are packaged according to customer specifications. Our manufacturing processes and inspection test equipment ensure that the thin-wall welded pipes meet ASTM B 338 and ASME SB 338 standards.

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube
CP GR1 Titanium tube PHYSICAL PROPERTIES
Physical Properties Metric English Comments
Density 4.50 g/cc 0.163 lb/in³  
a Lattice Constant 2.95 Å @Temperature 25.0 °C 2.95 Å @Temperature 77.0 °F alpha phase
3.29 Å @Temperature 900 °C 3.29 Å @Temperature 1650 °F beta phase
c Lattice Constant 4.683 Å 4.683 Å @Temperature 77.0 °F c/a = 1.587
 
Mechanical Properties Metric English Comments
Hardness, Brinell 120 120 annealed
Hardness, Knoop 132 132 Estimated from Brinell.
Hardness, Rockwell B 70 70 annealed
Hardness, Vickers 122 122 Estimated from Brinell.
Tensile Strength 124 - 138 MPa @Temperature 427 °C 18000 - 20000 psi @Temperature 801 °F  
152 - 179 MPa @Temperature 316 °C 22000 - 26000 psi @Temperature 601 °F  
193 - 207 MPa @Temperature 204 °C 28000 - 30000 psi @Temperature 399 °F  
Tensile Strength, Ultimate 240 MPa 34800 psi  
Tensile Strength, Yield 170 - 310 MPa 24700 - 45000 psi  
76.0 - 90.0 MPa @Temperature 427 °C 11000 - 13100 psi @Temperature 801 °F 0.2% offset
   
83.0 - 103 MPa @Temperature 316 °C 12000 - 14900 psi @Temperature 601 °F 0.2% offset
110 - 124 MPa @Temperature 204 °C 16000 - 18000 psi @Temperature 399 °F 0.2% offset
Elongation at Break 24% 24%  
25 - 30 % @Temperature 427 °C 25 - 30 % @Temperature 801 °F  
30 - 35 % @Temperature 316 °C 30 - 35 % @Temperature 601 °F  
40 - 50 % @Temperature 204 °C 40 - 50 % @Temperature 399 °F  
Reduction of Area 35% 35%  
Tensile Modulus 103 GPa 14900 ksi  
Compressive Modulus 110 GPa 16000 ksi  
Poissons Ratio 0.37 0.37  
Shear Modulus 45.0 GPa 6530 ksi  
Charpy Impact 310 J 229 ft-lb V-notch
Impact Test 136 J 100 ft-lb Impact Strength
Coefficient of Friction, Dynamic 0.68 0.68 Ti sliding on Ti; 300 m/min
  0.8 0.8 Ti sliding on Ti; 40 m/min
 
CP GR2 Titanium tube PHYSICAL PROPERTIES
Density Magnetic Permeability
0.163 lbs/in-3 Nonmagnetic
4.51 g/cm-3 Electrical Resistivity
Beta Transus (+/-25°F, +/--3.9°C) 21 µΩ/in
1680°F 0.53 µΩ/m
915°C Elastic Modulus
Thermal Conductivity 15.2-17.4 Msi
12.60 BTU hr-1ft-1 °F-1 105-120 GPa
21.79 W m-1 °C-1 Typical values at room temperature of about 68-78°F (20-25°C)
 
GR5 TI6AL4V Titanium tube PHYSICAL PROPERTIES
Physical Properties Metric English Comments
       
Density 4.43 g/cc 0.16 lb/in³  
Mechanical Properties
       
Hardness, Brinell 334 334  Estimated from Rockwell C.
Hardness, Knoop 363 363  Estimated from Rockwell C.
Hardness, Rockwell C 36 36  
Hardness, Vickers 349 349  Estimated from Rockwell C.
Tensile strength min. 895MPa 129810 psi  
Yield strength min. 828MPa 120090 psi  
Elongation at Break min.10 % 10 %  
Reduction of Area min.25 % 25 %  
Modulus of Elasticity 113.8 GPa 16500 ksi  
Compressive Yield Strength 970 MPa 141000 psi  
Notched Tensile Strength 1450 MPa 210000 psi  Kt (stress concentration factor) = 6.7
Ultimate Bearing Strength 1860 MPa 270000 psi  e/D = 2
Bearing Yield Strength 1480 MPa 215000 psi  e/D = 2
Poisson's Ratio 0.342 0.342  
Charpy Impact 17 J 12.5 ft-lb  V-notch
Fatigue Strength 240 MPa 34800 psi  at 1E+7 cycles. Kt (stress concentration factor) = 3.3
Fatigue Strength 510 MPa 74000 psi  Unnotched 10,000,000 Cycles
Fracture Toughness 75 MPa-m½ 68.3 ksi-in½  
Shear Modulus 44 GPa 6380 ksi  
Shear Strength 550 MPa 79800 psi  Ultimate shear strength
Electrical Properties
       
Electrical Resistivity 0.000178 ohm-cm 0.000178 ohm-cm  
Magnetic Permeability 1.00005 1.00005  at 1.6kA/m
Magnetic Susceptibility 3.30E-06 3.30E-06  cgs/g
Thermal Properties
       
CTE, linear 20°C 8.6 µm/m-°C 4.78 µin/in-°F  20-100ºC
CTE, linear 250°C 9.2 µm/m-°C 5.11 µin/in-°F  Average over the range 20-315ºC
CTE, linear 500°C 9.7 µm/m-°C 5.39 µin/in-°F  Average over the range 20-650ºC
Specific Heat Capacity 0.5263 J/g-°C 0.126 BTU/lb-°F  
Thermal Conductivity 6.7 W/m-K 46.5 BTU-in/hr-ft²-°F  
Melting Point 1604 - 1660 °C 2920 - 3020 °F  
Solidus 1604 °C 2920 °F  
Liquidus 1660 °C 3020 °F  
Beta Transus 980 °C 1800 °F  
 
Certifications

Gr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium TubeGr2 Titanium Tube Titanium Welded Pipe Titanium Seamless Tube Manufacturer ASME Sb-861 High Temperature Resistance Hydraulic System Grade 2 Titanium Tube

Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)

The Titanium Tube Gr2 ASTM B338 Grade 2 Seamless Tube from Jiangsu Daxun Alloy Co., Ltd. is the premier choice for industrial applications. It strikes a perfect balance between moderate strength and ductility, ensuring excellent corrosion resistance in both highly oxidizing and slightly reducing conditions, including chlorides. This tube is indispensable in the chemical and offshore industries and in aircraft manufacturing, where both strength and ease of forming are critical. Moreover, it serves essential roles in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping solutions.

Fabrication

Titanium Grade 2 from Daxun Alloy is highly responsive to cold forming using standard techniques. While it can be machined readily, it is essential to maintain sharp tools and employ liberal use of coolant. Similar to machining austenitic stainless steels, cuts should be deep and continuous, with slow feeds and speeds, to achieve optimal results.

Stock Availability

Jiangsu Daxun Alloy Co., Ltd. maintains an extensive stock of CP 2 Grade Titanium Seamless and Welded Pipes in a diverse range of sizes to meet your specific needs.

Weight Reduction

The CP 2 Grade Titanium Tubes from Daxun Alloy are designed for applications where weight reduction is paramount. These tubes feature a low density and an exceptional strength-to-weight ratio. They are cold formable and exhibit excellent ductility. Welding can be performed using conventional TIG and MIG processes, provided inert gas shielding is used to prevent weld zone embrittlement.

Crystal Structure

At room temperature, the ASTM B338 Grade 2 titanium tube boasts an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. When heated to approximately 885°C (1625°F), it transforms into a beta (body-centered cubic) structure. This transformation temperature is influenced by impurities or alloying additions. These elements can also create two temperature zones: the alpha transformation zone (below which the alloy is entirely alpha) and the beta transformation zone (above which the alloy is entirely beta). Between these zones, both alpha and beta forms coexist. For Grade 2 Titanium, typical transformation temperatures are 890°C (1635°F) and 913°C (1675°F), respectively.

Grade 2 Titanium Seamless Pipe Manufacturing Process

At Jiangsu Daxun Alloy Co., Ltd., the 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. This is followed by multiple cold rolling processes to ensure the highest quality. The comprehensive manufacturing procedure includes: vacuum arc melting of sponge titanium, ingot blanking to obtain hollow blanks, cleaning, cutting and feeding, hot extrusion or oblique rolling and 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. Each tube maintains continuous perimeters at all stages of production.

Grade 2 Titanium Welded Pipe Manufacturing Process

Jiangsu Daxun Alloy Co., Ltd. manufactures ASTM B338 Grade 2 titanium welded pipes using annealed flat-rolled steel plate or steel strip and the automatic arc welding (TIG) process. The primary production steps include: 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. Stress relief heat treatments are applied after forming and welding to enhance durability. No filler materials are used during the welding process.

Grade 2 Titanium Tube (UNS R50400 / Werkstoff WS 3.7034)

This is the industry's preferred choice for titanium tubes, offering an exceptional balance of moderate strength and superb ductility. It boasts unparalleled corrosion resistance in both highly oxidizing and mildly reducing environments, including chloride-rich conditions. Its remarkable corrosion protection makes it indispensable in the chemical and offshore industries, as well as in aircraft manufacturing, where strength and formability are paramount. Additionally, it is extensively utilized in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, industrial and aerospace components, CPI equipment, and piping systems.

Fabrication

Titanium Grade 2 is highly amenable to cold forming using standard techniques. While it is readily machinable, it requires the use of sharp tools and ample coolant. Similar to machining austenitic stainless steels, deep and continuous cuts with slow feeds and speeds are essential.

Stock Availability

Daxun Alloys maintains an extensive stock of CP 2 Grade Titanium Seamless and Welded Pipes in a variety of sizes to suit diverse applications.

Weight Reduction

CP 2 grade titanium tubes are distinguished by their low density and high strength-to-weight ratio, making them ideal for applications demanding weight reduction without compromising strength. They are cold formable, exhibit excellent ductility, and can be welded using standard TIG and MIG techniques, with inert gas shielding to prevent weld zone embrittlement.

Crystal Structure

At ambient temperatures, ASTM B338 Grade 2 titanium tube features 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 transition temperature can be modified by the type and concentration of impurities or alloying elements. Alloy additions further subdivide the single equilibrium transformation temperature into two distinct zones: the alpha transformation zone, where the alloy is completely alpha, and the beta transformation zone, where it is entirely beta. Between these 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 titanium seamless tubes are meticulously crafted from hollow blanks through a hot extrusion process or an oblique rolling and piercing process, followed by multiple cold rolling stages. Each production stage ensures the tubes maintain continuous perimeters. 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 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 pipes are produced from annealed flat-rolled steel plates or strips using the automatic arc welding (TIG) process. The primary production steps include: 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. These welded pipes undergo at least one stress relief heat treatment post-forming and welding, ensuring resilience and integrity.

Ti-6Al-4V Titanium Pipe - Grade 5 Titanium Tube

Titanium Alloy - (UNS R56400)
Introduction
Introducing the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400) - the pinnacle of titanium alloy engineering. As the most favored titanium alloy, it boasts a duplex alpha+beta configuration. Aluminum serves as the alpha stabilizer while vanadium acts as the beta stabilizer. With an incredible strength that endures low temperatures down to 800°F (427°C), this high-strength alloy is perfect for diverse applications including annealing, solution treating, and aging. Ideal for compressor blades, disks, and rings in jet engines, fuselage and space capsule components, pressure vessels, *** cases, helicopter rotor hubs, fasteners, and high-strength-to-weight ratio critical forgings.
Our alloy achieves superior quality through initial melting processes such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Following this, remelting is conducted in either one or two additional vacuum arc steps to ensure excellence.
Specifications
• ASTE B338 - Standard Heat Treatable Titanium Tube, designed to meet the highest standards of quality and performance.
• AMS 4928 - Forgings and Forging Stock (Annealed), ensuring robust and durable components.
• AMS 4965 - Forgings (Solution Treated and Aged), optimized for superior strength.
• AMS 4967 - Forgings (Annealed, Heat Treatable), crafted for precision and reliability.

Physical Properties

The DAXUN Ti-6Al-4V Titanium Tube offers a melting range from 2,800-3,000°F (1,538 - 1,649°C), ensuring resilience and dependability in various conditions.
Density: 0.160 lb/in3; 4.47 g/cm3
Beta Transus Temperature: 1830°F (± 25°); 999°C (± 14°), highlighting its thermal stability and endurance.

Heat Treatment

When high hardness, tensile strength, and fatigue strength are essential, our titanium tubes are annealed at temperatures between 1,700-1,900°F (927 - 1,038°C).
The DAXUN 6-4 Grade 5 Titanium Tube is versatile in terms of heat treatment options:
1. Annealing: Conducted at 1,275 -1,400°F; (691 - 760°C) for ½ to 2 hours, followed by air or furnace cooling.
2. Stress Relief Annealing: Performed at 1,000 -1,200°F; (538 - 649°C) for 1 to 8 hours, then air or furnace cooled.
3. Solution Heat Treating: Executed at 1,675 -1,750°F; (913 - 954°C) for 1 hour, followed by water quenching.
4. Aging: Carried out at 975 -1,025°F; (524 - 552°C) for 4 to 8 hours with air cooling.

Optimum Properties

Achieve peak performance with small cross-sections and rapid quenching in the solution-treated and aged condition. Larger cross-sections or delayed quenching may compromise optimal properties.

Hardness

Experience typical hardness levels of Rockwell C 30-34 in the annealed condition and approximately Rockwell C 35-39 in the solution and aged condition.

Forgeability/Formability

The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 showcases excellence in forging at 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). For the best results, a reduction of at least 35% is recommended.

While challenging to form at room temperature, even when annealed, our titanium tubes can undergo severe forming operations such as bending or stretching at temperatures up to 1,200°F (649°C) without compromising mechanical properties. Creep forming is effective for hot sizing or forming at temperatures between 1,000 to 1,200°F (538 to 649°C).

Machinability

DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube can be precisely machined using methods tailored for austenitic stainless steels. Employ slow speeds, high feeds, and ensure robust tool rigidity, complemented by the use of copious non-chlorinated cutting fluids.

Weldability

DAXUN Ti-6Al-4V Titanium Tube Grade 5 Titanium Tube offers exceptional weldability in both annealed and solution or partially aged conditions, with aging

completed during post-weld heat treatment. It is imperative to prevent contamination from oxygen, nitrogen, and hydrogen. Fusion welding should be executed within an inert gas-filled chamber or protected by an inert gas tail shield over the molten metal and adjacent hot zones. Techniques like spot welding, seam welding, and flash welding can be performed without a protective atmosphere.

Special Considerations

DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube might suffer hydrogen contamination from improper pickling or from absorbing oxygen, nitrogen, and carbon during forging, heat treating, brazing, etc. Such contamination could diminish ductility and impair notch sensitivity and formability.
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