ASTM B338 Gr2 Titanium Tube Heat Exchanger Grade 2 Seamless Pipe

• Type: Titanium Pipes
• Application: Industrial, Medical
• Technique: Hot Rolled
• Grade: Gr2 Grade2
• Shape: Round
• Standards: Astmb861 B862 B338 ASME Sb861 Sb862 Sb338
• Model NO.: Grade 2 titanium tube
• 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

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

Advanced Production: Titanium Welded Tube

Grade 2 Titanium Welded Tube: Our tubes showcase a versatile diameter range from 6.0mm to 1219mm and a robust wall thickness from 0.3mm to 30mm, contingent on diameter, with lengths extending to an impressive 25000mm. Crafted from Gr1 titanium tubes, these welded tubes originate from flat-rolled billets (tube blanks) and are formed using advanced electric tube welding machines employing automatic tungsten inert gas (argon) welding. Post-welding, they undergo heat treatment on the mill line. Each tube undergoes stringent mechanical tests, precise geometric measurements, comprehensive 100% ultrasonic and eddy current testing, and either pneumatic or hydrostatic testing before being packaged to customer specifications. Our cutting-edge manufacturing technology and rigorous inspection protocols ensure that our thin-wall welded tubes strictly adhere to ASTM B 338 and ASME SB 338 standards.

 

Advanced Production: Titanium Seamless Pipe

• Grade 2 titanium seamless pipes from Daxun are meticulously hot-rolled or hot-extruded, straightened, processed for internal and external diameters, and surface-etched for the highest quality finish. These pipes can be delivered in either heat-treated or non-heat-treated forms. Our capabilities include 100% ultrasonic flaw detection. Hot-rolled/hot-extruded titanium seamless pipes feature an outer diameter ranging from 1.0mm to 325mm, wall thickness between 0.3mm and 50mm, and lengths up to 12000mm. Meanwhile, cold-rolled titanium seamless pipes, which are treated, surface-etched, and water pressure tested or ultrasonically inspected, offer outer diameters from 6mm to 102mm, wall thickness from 0.5mm to 20mm, and lengths up to 9000mm.
  (The above is agreed upon by the manufacturer and the customer based on the specific situation)

 

Grade 2 Titanium Tube Features

Daxun's Grade 2 Titanium Tube is synonymous with medium strength and exceptional cold forming properties. It boasts remarkable weldability and displays outstanding resistance to oxidation and corrosion, making it a material of choice for demanding applications.

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

 

A global leader in the fabrication of commercially pure titanium tubes

Choose Grade 2 Titanium Tubes from Daxun, and you'll discover an extensive array of sizes, starting from a 1.0 mm diameter. We offer a wide range, either direct from stock or custom-made to your exact specifications. Our inventory includes drawn, seamless rolled, or longitudinally welded tubes suitable for various applications. We supply welded or seamless tubes made of Grade 2 Titanium to rigorous heat exchanger specifications 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% lighter than ferrous alloys. This medium-strength alloy has a typical yield strength of 352 MPa, excellent ductility, formability, and welding properties. The addition of iron and oxygen enhances its strength and formability. CP Grade 2 exhibits comparable performance to Grade 1, including exceptional corrosion resistance under oxidizing conditions, yet provides superior strength compared to Grade 1.

Grade 2 Titanium Tubes are the epitome of commercially pure titanium, balancing strength with ductility. Renowned for its toughness, Grade 2 is the most widely utilized titanium alloy, prized for its high strength, weldability, and corrosion resistance. Its superior ductility and formability make it the preferred choice for piping systems, heat exchangers, reaction and pressure vessels, and flue gas desulfurization systems. Widely employed across industries such as chemical processing, petrochemical processing, aerospace, and marine, Grade 2 titanium alloys deliver exceptional performance.

Packaging & Shipping

Company Profile

Titanium Seamless Tubes
Daxun produces:
Hot-finished Titanium Tubes
Our hot-finished titanium tubes are meticulously produced using advanced hot-rolling or hot-extrusion techniques. These tubes are available in both heat-treated and non-heat-treated forms, ensuring versatile applications. They undergo precise straightening, internal and external machining, and a polished finish for superior quality. We also offer 100% ultrasonic flaw detection to guarantee the highest standards of integrity and performance.
Titanium Tube Materials Available:
Hot-rolled Titanium Tubes: OD 19mm to 325mm, wall thickness 9mm to 30mm, length up to 5000mm (subject to agreement between manufacturer and customer); - Hot-extruded Titanium Tubes: OD 50mm to 160mm, wall thickness 7mm to 35mm, length up to 3000 (subject to agreement between manufacturer and customer).
Cold-finished Titanium Tubes
Cold-finished Titanium Tubes are expertly crafted to meet specific manufacturing requirements. They are available in heat-treated, surface-etched forms and undergo rigorous hydrostatic or ultrasonic testing. Available dimensions: OD 6mm to 89mm, wall thickness 0.5mm to 11mm, length up to 6000mm (subject to agreement between manufacturer and customer).

Titanium Welded Pipes
DaXun manufactures premium titanium pipes with diameters ranging from 12.7mm to 38.1mm (0.47 in to 1.5 in) and wall thicknesses from 0.4mm to 1.65mm (0.016 in to 0.065 in), with lengths up to 25000mm. Our titanium welded pipes, available in Gr1, Gr2, and Gr12 alloys, are ideal for engineering and chemical industries. These pipes are crafted from flat rolled raw material using automatic tungsten inert gas (argon) welding and are heat treated in-line. Each pipe undergoes mechanical testing, precise geometrical measurements, 100% ultrasonic and eddy current testing, as well as pneumatic or hydrostatic testing. They comply with ASTM B 338 and ASME SB 338 standards and are packed according to customer specifications, ensuring superior quality and reliability.

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

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

This is the most widely utilized titanium tube for a broad range of industrial applications, offering an outstanding equilibrium of moderate strength and appreciable ductility. It excels in corrosion resistance under both highly oxidizing and mildly reducing conditions, including exposure to chlorides. This tube provides exceptional protection against corrosion in chemical and offshore industries, as well as in aircraft manufacturing where strength and formability are paramount. It is also extensively used in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, various industrial and aerospace components, CPI equipment, and piping systems.

Fabrication

Titanium Grade 2 is highly receptive to cold forming through standard techniques. It can be effectively machined with careful maintenance of sharp tools and liberal coolant application. Similar to machining austenitic stainless steels, the cuts should be deep and continuous with slow feed rates and speeds for optimal results.

Stock Availability

Daxun Alloys maintains a robust inventory of CP 2 Grade Titanium Seamless and Welded Pipes in a wide array of sizes to meet diverse project requirements.

Weight Reduction

CP 2 grade titanium tubes boast a low density and an impressive strength-to-weight ratio, making them ideal for applications demanding weight reduction without compromising on strength. These tubes are easily cold formable, exhibit excellent ductility, and can be welded using conventional TIG and MIG processes. However, it is essential to use inert gas shielding to prevent embrittlement in the weld zone.

Crystal Structure

At ambient temperature, ASTM B338 Grade 2 titanium exhibits an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. Upon reaching approximately 885°C (1625°F), it transitions to a beta (body-centered cubic) structure. The transformation temperature can vary based on the type and concentration of impurities or alloying elements. These additions also delineate the single equilibrium transformation temperature into two distinct 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 phases coexist. Typical transformation temperatures for Grade 2 titanium are 890°C (1635°F) for alpha and 913°C (1675°F) for beta.

Grade 2 Titanium Seamless Pipe Manufacturing Process

Daxun's ASTM B338 Grade 2 titanium seamless tubes are expertly crafted from hollow blanks using a hot extrusion process or oblique rolling and piercing methods, followed by successive cold rolling processes. Throughout the manufacturing stages, the seamless 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 steel strips via an automatic arc welding (TIG) process. Key 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. Each welded pipe is subjected to at least one stress relief heat treatment after forming and welding. Daxun ensures no filler materials are used during the welding process.

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

This highly sought-after ASTM B338 Gr2 Titanium Tube seamlessly balances moderate strength with exceptional ductility, making it a staple in industrial applications. Its outstanding corrosion resistance thrives in both highly oxidizing and mildly reducing environments, including chloride-rich conditions. This makes it indispensable across various sectors such as chemical processing, offshore installations, aircraft manufacturing, and heat exchangers. It offers unparalleled protection and reliability in hypochlorite systems, fire water systems, ballast water systems, and CPI equipment, ensuring robust performance where strength and formability are crucial.

Fabrication

Titanium Grade 2 excels in cold forming with standard techniques, promising smooth machinability while necessitating sharp tools and generous coolant usage. Similar to machining austenitic stainless steels, it requires deep, continuous cuts with controlled feeds and speeds to maintain precision and quality.

Stock Availability

Daxun Alloys offers an extensive stock of CP 2 Grade Titanium Seamless and Welded Pipes, catering to diverse size requirements.

Weight Reduction

CP 2 grade titanium tubes stand out for their low density and high strength-to-weight ratio, ideal for weight-sensitive applications without compromising strength. They boast excellent cold formability, good ductility, and can be welded with conventional TIG and MIG processes, though inert gas shielding is critical to prevent weld zone embrittlement.

Crystal Structure

At ambient temperature, ASTM B338 Grade 2 titanium tube exhibits an alpha (hexagonal close-packed) crystal structure, akin to commercially pure titanium grades 1 and 3. This structure transforms to a beta (body-centered cubic) configuration at approximately 885°C (1625°F). Adjustments in transformation temperature are possible through varying impurity or alloying element concentrations. These additions split the equilibrium transformation temperature into two distinct zones: the alpha transformation zone (entirely alpha below this temperature) and the beta transformation zone (entirely beta above this temperature). Between these zones exist both alpha and beta structures. Typical transformation temperatures for Grade 2 titanium are 890°C (1635°F) for alpha and 913°C (1675°F) for beta.

Grade 2 Titanium Seamless Pipe Manufacturing Process

Daxun's ASTM B338 Grade 2 titanium seamless tubes are meticulously crafted from hollow blanks via hot extrusion or oblique rolling and piercing processes, followed by subsequent cold rolling. Ensuring continuous perimeters at all production stages, the seamless tube manufacturing includes: sponge titanium vacuum arc melting, blanking to obtain hollow blanks, cleaning, cutting, feeding, hot extrusion or oblique rolling + 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 crafted from annealed flat-rolled steel plates or strips using an automatic arc welding (TIG) process. Key production stages involve: 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. Post-forming and welding, welded pipes undergo at least one stress relief heat treatment, and Daxun ensures no filler materials are used in the welding process.

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

Titanium Alloy - (UNS R56400)
Introduction
The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 (UNS R56400), stands as the most sought-after titanium alloy. This duplex alpha+beta titanium alloy employs aluminum as the alpha stabilizer and vanadium as the beta stabilizer, ensuring exceptional strength even at low temperatures, approximately 800°F (427°C). ATI Ti-6Al-4V, Grade 5 alloy is ideal for annealing, solution treating, and aging applications. It's commonly used in manufacturing compressor blades, disks, and rings for jet engines; critical fuselage and space capsule components; pressure vessels; *** cases; helicopter rotor hubs; fasteners; and high-strength-to-weight ratio forgings.
Initially, the alloy undergoes meticulous melting processes such as vacuum arc (VAR), electron beam (EB), or plasma arc hearth melting (PAM). Subsequent remelting is carried out through one or two additional vacuum arc steps, refining its 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 Properties

For the Ti-6Al-4V Titanium Tube, the melting range stands impressively between 2,800-3,000°F (1,538 - 1,649°C).
Density is precisely measured at 0.160 lb/in3 (4.47 g/cm3), ensuring optimal performance.
The Beta Transus Temperature is marked at 1830°F (± 25°) or 999°C (± 14°), emphasizing its versatility.

Heat Treatment

When high hardness, tensile strength, and fatigue strength are essential, annealing is conducted at 1,700-1,900°F (927-1,038°C).
The DAXUN 6-4 Grade 5 Titanium Tube offers diverse heat treatment methods to meet various needs.
1. **Annealing:** Carried out at 1,275-1,400°F (691-760°C) for ½ to 2 hours, followed by air or furnace cooling.
2. **Stress Relief Annealing:** Conducted at 1,000-1,200°F (538-649°C) for 1 to 8 hours, followed by air or furnace cooling.
3. **Solution Heat Treating:** Performed at 1,675-1,750°F (913-954°C) for 1 hour, followed by a water quench.
4. **Aging:** Executed at 975-1,025°F (524-552°C) for 4 to 8 hours, with air cooling.

Optimum Properties

Small cross-sections achieve rapid quenching in the solution-treated and aged condition. Larger sections or delayed quenching may yield less optimal properties.

Hardness

Typically, in the annealed state, the hardness ranges around Rockwell C 30-34, while the solution-treated and aged condition reaches approximately Rockwell C 35-39.

Forgeability/Formability

The DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, is optimally forged at 1,750°F (954°C) with a final forging temperature of 1,450°F (788°C). To achieve best results, a minimum reduction of 35% is highly recommended.

Forming the DAXUN Ti-6Al-4V Titanium Tube, Grade 5 Titanium Tube, at room temperature, even in the annealed state, presents challenges. Hence, severe forming operations such as bending or stretching are best performed on annealed material at temperatures up to 1,200°F (649°C) without compromising mechanical properties. Creep forming is suitable for hot sizing or forming at temperatures between 1,000 and 1,200°F (538 to 649°C).

Machinability

The DAXUN Ti-6Al-4V Titanium Tube, also known as Grade 5 Titanium Tube, exhibits excellent machinability. It can be processed using standard machining techniques for austenitic stainless steels, provided that certain conditions are adhered to. This includes maintaining slow speeds, ensuring high feeds, using well-rigidized tools, and applying generous quantities of non-chlorinated cutting fluids.

Weldability

The DAXUN Ti-6Al-4V Titanium Tube, classified as Grade 5 Titanium Tube, offers exceptional weldability. It can be easily welded in its annealed or solution and partially aged states. Special attention to aging during post-weld heat treatment is crucial.

For optimal results, precautions must be taken to prevent contamination from oxygen, nitrogen, and hydrogen during the welding process. Fusion welding is best performed within an inert gas-filled chamber or with an inert gas tail shield to protect the molten metal and adjacent hot zones. Furthermore, spot welding, seam welding, and flash welding can be carried out effectively without the need for a protective atmosphere.

Special Considerations

It is important to note that the DAXUN Ti-6Al-4V Titanium Tube, or Grade 5 Titanium Tube, can be susceptible to contamination by hydrogen due to improper pickling, as well as the absorption of oxygen, nitrogen, and carbon during manufacturing processes like forging, heat treating, and brazing. Such contamination can adversely affect ductility and compromise notch sensitivity and formability.

FAQ