1. Introduction: The Pinnacle of Material Engineering

Welcome to the definitive resource for high-performance Extruded Titanium Tubes. In the demanding landscape of modern engineering and manufacturing, material selection is paramount. When applications demand an exceptional combination of high strength-to-weight ratio, outstanding corrosion resistance, excellent biocompatibility, and reliable performance across extreme temperature ranges, extruded titanium tubes stand out as a superior choice.

Unlike tubes manufactured through welding or traditional seamless drawing processes, extruded titanium tubes offer unique metallurgical characteristics and dimensional possibilities derived directly from the hot extrusion process. This method involves forcing a heated titanium billet through a shaped die, resulting in a tube with excellent grain structure, dimensional integrity, and the inherent properties that make titanium alloys so valuable.

This product page provides an exhaustive overview of our extruded titanium tube offerings, covering everything from the fundamental principles of the extrusion process and material grades to detailed technical specifications, diverse applications, quality assurance protocols, and customization options. Whether you are designing critical components for aerospace, developing advanced medical implants, engineering robust chemical processing equipment, or exploring innovations in marine or energy sectors, our extruded titanium tubes provide the foundation for success. We are committed to supplying products that not only meet but exceed the stringent requirements of your most challenging projects.

Explore the sections below to understand why extruded titanium tubes from [Your Company Name] represent an investment in quality, reliability, and long-term performance.

2. Understanding Extruded Titanium Tubes: The Process and Its Advantages

2.1 What is Titanium Extrusion?

Titanium extrusion is a thermo-mechanical manufacturing process used to create long, straight, semi-finished products (like tubes, bars, or profiles) with a constant cross-section. The core principle involves heating a solid cylindrical titanium billet to a specific, elevated temperature (below its melting point but high enough to significantly reduce its flow stress and increase its ductility) and then forcing it under immense pressure through a die orifice shaped to the desired cross-section of the final tube.

The key steps typically include:

1. Billet Preparation: High-quality titanium alloy billets of the desired grade are cut to specific lengths. They may be surface conditioned or machined to ensure uniformity and remove imperfections.
2. 난방: The billet is uniformly heated in a controlled atmosphere furnace (often induction or gas-fired) to the optimal extrusion temperature. This temperature varies depending on the specific titanium grade (typically ranging from 800∘C to 1200∘C or 1472∘F to 2192∘F). Precise temperature control is critical to achieve the desired metallurgical properties and prevent defects.  
3. 윤활: A lubricant (often glass-based, acting as a molten layer at extrusion temperatures) is applied to the billet and/or the die to reduce friction, prevent galling (titanium’s tendency to stick to tooling), insulate the billet, and improve surface finish.
4. Extrusion: The heated, lubricated billet is placed inside the container of a powerful hydraulic extrusion press. A ram pushes the billet forward, forcing the softened metal through the die orifice. For tubing, a mandrel positioned within the die orifice forms the internal diameter (ID) of the tube, while the die determines the outer diameter (OD).
5. 냉각: As the extruded tube emerges from the die, it is carefully cooled (air cooling, water quenching, or controlled cooling rates) to achieve the desired microstructure and mechanical properties.
6. Finishing: Post-extrusion processes often include straightening (to correct any bowing or twisting), cutting to length, heat treatment (annealing, stress relieving, or solution treating and aging for specific alloys), surface conditioning (pickling, blasting, machining, polishing), and non-destructive testing.

2.2 Key Advantages of the Extrusion Process for Titanium Tubes:

• Complex Cross-Sections: While this page focuses on tubes, extrusion allows for relatively complex cross-sectional shapes that might be difficult or impossible to produce via other methods.  
• Good Dimensional Control: While not always as precise as cold drawing for very tight tolerances, extrusion provides good control over wall thickness uniformity and overall dimensions, especially for heavier-walled tubes.
• Excellent Metallurgical Structure: The high temperatures and deformation involved in hot extrusion promote dynamic recrystallization, leading to a refined and uniform grain structure. This contributes significantly to the mechanical properties and homogeneity of the final product.
• Seamless Integrity: Like seamless drawn tubes, extruded tubes have no weld seam, eliminating the potential weak points associated with welded products. This is crucial for high-pressure applications and corrosive environments.
• Manufacturing Efficiency for Certain Sizes/Shapes: For specific size ranges, particularly larger diameters or heavier wall thicknesses, extrusion can be a more efficient production route compared to extensive cold drawing reductions.
• Alloy Versatility: The extrusion process is suitable for a wide range of titanium alloys, including those that might be more difficult to work using other methods.

3. Key Features and Benefits of Our Extruded Titanium Tubes

Our extruded titanium tubes are engineered to deliver exceptional performance across a wide spectrum of demanding applications. The inherent properties of titanium, combined with the specific advantages of the extrusion process, result in a product with the following key features and benefits:

3.1 Unmatched Strength-to-Weight Ratio: Titanium alloys boast the highest strength-to-weight ratio of any common structural metal. A component made from an alloy like Ti-6Al-4V (Grade 5) can offer comparable strength to many steel alloys at approximately 56% of the weight. This is a critical advantage in industries where weight reduction is paramount for performance and efficiency, such as: * 항공우주: Reduced aircraft weight translates directly to lower fuel consumption, increased payload capacity, and enhanced maneuverability. Titanium tubes are used in airframes, engine components, hydraulic systems, and landing gear. * 자동차: High-performance vehicles utilize titanium for exhaust systems, suspension components, and engine parts to improve speed, handling, and fuel economy. * Sports Equipment: High-end bicycle frames, golf club heads, and other sporting goods leverage titanium’s lightness and strength for competitive advantage.  

3.2 Exceptional Corrosion Resistance: Titanium exhibits outstanding resistance to corrosion in a vast array of aggressive environments, far surpassing stainless steels and other alloys in many cases. This is due to the formation of a highly stable, tenacious, and self-healing passive oxide layer (TiO2​) on its surface. This layer protects the underlying metal from attack in: * Seawater and Marine Environments: Virtually immune to corrosion in seawater, chloride solutions, and brine, making it ideal for offshore platforms, shipbuilding, desalination plants, and submersible components. * 화학 처리: Excellent resistance to oxidizing acids (like nitric acid), chlorides, wet chlorine gas, chlorite and hypochlorite solutions, organic acids, and many industrial chemicals. Extruded tubes are vital for heat exchangers, reactors, piping systems, and tanks in chemical plants. * Sour Gas Environments: Certain titanium alloys offer good resistance in oil and gas applications involving hydrogen sulfide (H2​S).  

3.3 Excellent Biocompatibility and Bio-inertness: Commercially Pure (CP) Titanium and certain alloys like Ti-6Al-4V ELI (Extra Low Interstitials) are widely recognized for their excellent biocompatibility. They are non-toxic, non-allergenic, and integrate well with human bone and tissue (osseointegration). This makes extruded titanium tubes a preferred material for: * Medical Implants: Orthopedic implants (hip and knee joints, bone screws, plates), dental implants, pacemaker casings, surgical instruments, and components for implantable devices. The seamless nature of extruded tubes can be advantageous for fluid pathways in medical devices.  

3.4 High and Low Temperature Performance: Titanium and its alloys maintain good mechanical properties over a broad temperature range: * Elevated Temperatures: Many titanium alloys retain significant strength up to 600∘C (1112∘F), outperforming aluminum and magnesium alloys. Specific high-temperature alloys are designed for even more demanding conditions, crucial for jet engine components and industrial furnaces. * Cryogenic Temperatures: Unlike many metals that become brittle at low temperatures, titanium alloys generally maintain good ductility and toughness down to cryogenic levels (e.g., -196°C / -321°F), making them suitable for applications involving liquefied natural gas (LNG) and aerospace cryogenic systems.  

3.5 Seamless Construction: The extrusion process produces inherently seamless tubes. The absence of a weld seam offers significant advantages: * Uniform Strength: No potential weak points or heat-affected zones associated with welds. * Enhanced Pressure Containment: Critical for high-pressure hydraulic lines, heat exchanger tubing, and process piping. * Improved Corrosion Resistance: Eliminates the risk of preferential corrosion along a weld seam. * Smoother Internal Bore: Potentially leads to better flow characteristics and reduced risk of fouling or deposits compared to some welded tubes.

3.6 Good Formability and Weldability (Grade Dependent): While not as formable as some softer metals, commercially pure titanium grades exhibit good ductility and can be formed, bent, and flared using appropriate techniques. Many titanium alloys, particularly CP grades and alloys like Grade 9 (Ti-3Al-2.5V), also offer good weldability using methods like Gas Tungsten Arc Welding (GTAW/TIG) and Gas Metal Arc Welding (GMAW/MIG), allowing for complex fabrications. The extrusion process itself imparts a favorable microstructure for subsequent forming operations.  

3.7 Durability and Long Service Life: The combination of high strength, fatigue resistance, erosion resistance, and exceptional corrosion resistance translates into components with a very long service life, even in harsh operating conditions. This reduces maintenance requirements, minimizes downtime, and lowers life-cycle costs compared to components made from less durable materials.

3.8 Non-Magnetic Properties: Titanium is essentially non-magnetic, which is important for applications where magnetic interference must be avoided, such as: * Medical imaging equipment (MRI). * Sensitive electronic devices and instrumentation. * Naval applications requiring low magnetic signatures.

4. The Extruded Titanium Tube Manufacturing Process: A Deeper Dive

Understanding the nuances of the extrusion process highlights the quality inherent in our products.

1. Raw Material Selection & Inspection: The process begins with sourcing high-purity titanium sponge, which is then melted (typically via Vacuum Arc Remelting – VAR, or Cold Hearth Melting methods like Electron Beam or Plasma Arc) with alloying elements (if required) to produce large ingots. These ingots are rigorously tested for chemical composition and homogeneity.
2. Billet Conversion & Preparation: Ingots are forged or rolled into cylindrical billets suitable for the extrusion press. Billets undergo surface conditioning (peeling or machining) to remove any surface defects or contamination. They are cut to precise lengths calculated based on the desired final tube length and the extrusion ratio.
3. Precision Heating: Billets are loaded into advanced furnaces, often using induction heating for rapid and uniform temperature rise. The atmosphere is carefully controlled (e.g., argon or vacuum) to prevent oxidation and contamination (especially embrittlement by oxygen and nitrogen) at the high temperatures required for extrusion. Thermocouples monitor the billet temperature closely to ensure it reaches the target within a tight tolerance window specific to the alloy being processed.  
4. Tooling Preparation & Lubrication: The extrusion die (determining OD and shape) and mandrel (determining ID) are made from specialized hot-work tool steels or superalloys capable of withstanding extreme temperatures and pressures. These tools are preheated. A critical step is the application of the lubricant system. Often, a glass powder or slurry is applied to the heated billet. Upon contact with the hot titanium, the glass melts, forming a viscous, insulating, and lubricating layer between the billet and the container, die, and mandrel. This is essential to prevent metal-to-metal contact and ensure smooth material flow.
5. The Extrusion Cycle (Direct vs. Indirect):
   • Direct Extrusion (Forward Extrusion): The most common method. The ram pushes the billet through the stationary die. Friction between the billet and the container wall is significant.
   • Indirect Extrusion (Backward Extrusion): The die is mounted on the ram and pushed into the billet, which remains stationary relative to the container (or moves with it). This reduces friction, allowing for potentially lower extrusion pressures or longer billets, but can be mechanically more complex.  
   • Hydrostatic Extrusion: Fluid pressure is used to force the billet through the die, further reducing friction. Less common for titanium tubes but used for specialized applications. The immense force (hundreds to thousands of tons) from the hydraulic press overcomes the titanium’s resistance to deformation, forcing it to flow through the annular space between the die and the mandrel, emerging as a tube.  
6. Controlled Cooling: The exit speed and cooling rate of the extruded tube are crucial variables affecting the final microstructure and properties. Cooling methods can range from still air cooling on a runout table to forced air or water spray quenching, depending on the alloy and desired properties (e.g., achieving a specific phase transformation).
7. Straightening: Due to thermal stresses and handling, extruded tubes often exhibit some degree of bow or twist. They are passed through multi-roll rotary straighteners or press straighteners while still warm or after cooling to achieve the required straightness tolerances.
8. 열처리: Depending on the titanium grade and application requirements, post-extrusion heat treatments are common:
   • 어닐링: To relieve residual stresses, improve ductility, and stabilize the microstructure. This is common for CP grades and many alloys.
   • Solution Treatment and Aging (STA): For heat-treatable alloys like Ti-6Al-4V, this multi-step process develops maximum strength.
   • 스트레스 해소: A lower temperature treatment to reduce internal stresses without significantly altering the microstructure or strength.
9. Finishing and Surface Treatment:
   • Cutting to Length: Tubes are cut to customer-specified lengths or standard stock lengths.
   • Surface Conditioning: Chemical pickling (acid bath, typically hydrofluoric-nitric acid mixture) removes the alpha case (a hard, brittle oxygen-enriched layer formed during heating) and the residual glass lubricant. Abrasive blasting may also be used.
   • Machining/Grinding: For applications requiring tighter tolerances or specific surface finishes, the OD and/or ID can be machined or ground.
   • Polishing: Mechanical polishing can achieve smoother surface finishes for aesthetic or functional requirements.  
10. Quality Control & Inspection: This final, critical stage ensures the product meets specifications (detailed in Section 8).

5. Titanium Grades Available for Extrusion

We offer extruded titanium tubes in a comprehensive range of commercially pure (CP) grades and alloys to suit diverse application requirements. The choice of grade depends critically on the desired balance of strength, corrosion resistance, formability, weldability, and temperature capability.

5.1 Commercially Pure (CP) Titanium Grades: These grades consist primarily of titanium with small, controlled amounts of oxygen, nitrogen, carbon, hydrogen, and iron, which influence strength and ductility. They offer the best corrosion resistance and formability but lower strength compared to alloys.

• Grade 1 (UNS R50250): The most ductile and softest CP grade. Offers excellent cold formability and high corrosion resistance. Lowest strength. Used where maximum formability is needed, such as deep drawing applications, plate heat exchangers, and some chemical processing equipment. Excellent weldability.  
• Grade 2 (UNS R50400): The most widely used CP grade, often considered the “workhorse” of the CP family. Offers a good balance of moderate strength, excellent cold formability, outstanding corrosion resistance (especially in oxidizing and mildly reducing media), and excellent weldability. Used extensively in chemical processing, desalination, power generation (condensers), heat exchangers, airframe components, cryogenic vessels, and architectural applications.  
• Grade 3 (UNS R50550): Stronger than Grades 1 and 2, with slightly reduced formability but still readily weldable. Offers excellent corrosion resistance. Used where higher strength than Grade 2 is required, often in pressure vessels, chemical processing, and marine applications.
• Grade 4 (UNS R50700): The strongest of the CP grades, offering the highest strength and moderate formability. Maintains excellent corrosion resistance. Used in applications requiring higher strength such as airframe components, surgical hardware, cryogenic vessels, and heat exchangers where design allows for its reduced formability. Good weldability.  

5.2 Titanium Alloys: Alloying elements (like Aluminum, Vanadium, Molybdenum, Palladium, Nickel, Ruthenium, Zirconium) are added to titanium to enhance specific properties like strength, heat resistance, or crevice corrosion resistance.

• Grade 5 (Ti-6Al-4V, UNS R56400): The most common titanium alloy, accounting for over 50% of total titanium usage. Known as the “workhorse” alloy. Contains 6% Aluminum and 4% Vanadium. Offers an excellent combination of high strength (heat-treatable to very high levels), low density, good fatigue resistance, good fabricability, and useful creep resistance up to about 315∘C (600∘F). Good general corrosion resistance, though less than CP grades in some media. Widely used in aerospace (airframes, engine components), performance automotive parts, marine hardware, medical implants (requires ELI variant for critical implants), and sports equipment.  
• Grade 7 (Ti-0.15Pd, UNS R52400): Similar mechanical properties to Grade 2 but with the addition of 0.12-0.25% Palladium. This small addition significantly enhances resistance to crevice corrosion and general corrosion in reducing acid environments (like HCl and H2​SO4​) and chlorides. Used primarily in demanding chemical processing and desalination applications where CP grades might suffer crevice attack. Excellent weldability and formability, similar to Grade 2.
• Grade 9 (Ti-3Al-2.5V, UNS R56320): Often called “half 6-4”. Contains 3% Aluminum and 2.5% Vanadium. Offers intermediate strength between CP Grade 4 and Grade 5. Significantly stronger than CP grades, especially at elevated temperatures, yet retains good weldability and cold fabricability (unlike Grade 5 which is difficult to cold form). Excellent corrosion resistance. Widely used in aerospace hydraulic tubing, performance bicycle frames, wheelchairs, and some chemical processing and marine applications. Often considered an optimal balance for high-performance tubing.
• Grade 12 (Ti-0.3Mo-0.8Ni, UNS R53400): Offers improved high-temperature strength compared to CP grades and enhanced crevice corrosion resistance in hot brine and reducing acid environments, similar to Grade 7 but often more cost-effective. Contains 0.3% Molybdenum and 0.8% Nickel. Readily weldable. Used in heat exchangers, chemical processing, and high-temperature brine applications.  
• Other Alloys: We may also offer extrusion capabilities for other specialized alloys upon request, including:
  • Grade 23 (Ti-6Al-4V ELI, UNS R56401): Extra Low Interstitial version of Grade 5, offering improved ductility and fracture toughness, particularly at cryogenic temperatures. The preferred grade for many surgical implants.  
  • Beta Alloys (e.g., Ti-15V-3Cr-3Sn-3Al): Heat-treatable alloys offering very high strength, excellent cold formability in the solution-treated condition, and good corrosion resistance. Used in specialized aerospace applications.

Choosing the correct grade is crucial. Our technical team can assist you in selecting the optimal material based on your specific operating conditions, performance requirements, and fabrication methods.

6. Extruded Titanium Tubes vs. Other Manufacturing Methods

While extrusion offers significant advantages, it’s helpful to compare it with other common methods for producing titanium tubes:

• Seamless Drawn Tubes:
  • Process: Starts with a solid billet pierced to create a hollow shell, which is then elongated and reduced in diameter/wall thickness through multiple cold or hot drawing passes over a mandrel or plug.
  • 장점: Can achieve very tight dimensional tolerances and excellent surface finishes. Can produce very thin walls.
  • 단점: More processing steps can increase cost. Limited in the maximum size (OD and wall thickness) achievable. Can be more difficult for less ductile alloys. Work hardening requires intermediate annealing steps.
  • 비교: Extrusion is often more economical for larger diameters, heavier walls, and can handle harder-to-work alloys more readily. Drawing excels in precision for smaller dimensions and thin walls. Both are seamless.
• Welded Tubes (ERW/EFW, LSAW):
  • Process: Formed from titanium strip or plate that is roll-formed into a cylindrical shape and then joined longitudinally using a welding process (e.g., Electric Resistance Welding, Electric Fusion Welding, Laser Beam Welding, Plasma Arc Welding).
  • 장점: Generally the most cost-effective method, especially for large volumes and larger diameters/thin walls. Can achieve good dimensional consistency.
  • 단점: The presence of a weld seam can be a potential site for preferential corrosion, reduced fatigue strength, and defects if not properly executed and inspected. The heat-affected zone (HAZ) has different properties than the base metal. Not typically suitable for very high-pressure or critical corrosion applications without extensive NDT and potentially post-weld heat treatment.
  • 비교: Extruded tubes offer superior integrity due to their seamless nature, making them preferable for demanding applications where pressure containment, fatigue life, and uniform corrosion resistance are critical. Welded tubes are suitable for less demanding, cost-sensitive applications.
• Pilgering (Cold Pilger Rolling):
  • Process: A cold-working process often used after extrusion or piercing. Uses grooved dies and a tapered mandrel to reduce the diameter and wall thickness of a tube simultaneously through a rocking/rolling and feeding motion.
  • 장점: Achieves excellent dimensional tolerances and surface finishes. Imparts significant cold work, increasing strength. Can produce very precise thin-walled tubing.
  • 단점: Relatively slow process, can be expensive. Typically used for smaller to medium diameter tubes.
  • 비교: Pilgering is often a finishing step for seamless tubes (including extruded preforms) when extremely high precision and specific mechanical properties are required, particularly for nuclear, medical, or aerospace applications. Extrusion provides the initial seamless hollow.

In summary: Extrusion provides a robust method for producing seamless titanium tubes, particularly advantageous for a wide range of sizes (including larger/heavier dimensions), various alloys, and applications where seamless integrity and good metallurgical structure are paramount.  

7. Diverse Applications of Extruded Titanium Tubes

The unique combination of properties makes extruded titanium tubes indispensable across numerous industries:

• Aerospace and Aviation:
  • Hydraulic Systems: High-pressure fluid lines requiring high strength, reliability, and low weight (e.g., Grade 9, Grade 5).  
  • Airframe Structures: Structural components where stiffness, strength, and weight savings are crucial.
  • 엔진 구성 요소: Casings, rings, ducting, and exhaust components requiring high-temperature strength and corrosion resistance (e.g., Grade 5, higher temp alloys).
  • 랜딩 기어 부품: High-strength elements subject to fatigue loading.
• Chemical Processing Industry (CPI):
  • Heat Exchangers (Shell & Tube, Plate): Excellent resistance to corrosive process fluids and cooling water (seawater, brackish water). CP Grades (esp. Grade 2), Grade 7, Grade 12 are commonly used.
  • Piping Systems: Transporting corrosive chemicals, acids, chlorides, and wet chlorine gas.
  • Reactors and Pressure Vessels: Where strength and corrosion resistance at elevated temperatures are needed (CP Grades, Grade 12, Grade 3).
  • Condensers and Evaporators: Especially in processes involving chlorides or oxidizing media.
• Medical and Dental:
  • Orthopedic Implants: Components for artificial joints (requires biocompatible grades like Grade 5 ELI, Grade 23).  
  • Surgical Instruments: Lightweight, corrosion-resistant, sterilizable tools.
  • Implantable Device Casings: Pacemaker housings, drug delivery systems (CP Grades, Grade 23).
  • Dental Implants and Fixtures: Posts and abutments requiring biocompatibility and strength.  
• Marine and Offshore:
  • Seawater Cooling Systems: Piping, heat exchangers on ships, offshore platforms, and coastal industrial plants (CP Grades, Grade 7).
  • Submersible Components: Pressure housings, structural elements for ROVs and submarines.
  • Offshore Platform Risers: Potentially using high-strength alloys for deepwater applications (though cost can be a factor).
  • Ballast Water Management Systems: Components resistant to seawater and treatment chemicals.
• Power Generation:
  • Steam Turbine Condensers: Tubing resistant to corrosion from cooling water (seawater, river water), especially in coastal or geothermal plants (CP Grade 2).
  • Geothermal Power Plants: Handling corrosive geothermal fluids and steam.
  • Flue Gas Desulfurization (FGD) Systems: Components exposed to corrosive scrubbing liquors.
  • Nuclear Power: Heat exchangers and piping in specific secondary circuits (requires specific grades and stringent QA).
• Oil and Gas Exploration and Production:
  • Heat Exchangers: For processing corrosive fluids or in offshore environments.
  • Downhole Tubing: In some sour gas or high-chloride environments where specific alloys offer resistance.
  • Offshore Platform Equipment: Piping and structural uses where seawater corrosion is a major concern.
• Desalination Plants:
  • Evaporator Tubing (MSF, MED): Critical component requiring long-term resistance to hot brine and seawater (CP Grades, Grade 7).
  • Brine Heaters and Piping: Handling concentrated, corrosive brine.
• 자동차:
  • Performance Exhaust Systems: Mufflers, tailpipes, headers offering weight savings, corrosion resistance, and a unique sound (CP Grades, Grade 5).
  • Suspension Springs: High strength-to-weight ratio for reduced unsprung mass.
  • Engine Valves and Connecting Rods: High-performance racing applications (Grade 5).
• Architecture and Construction:
  • Facade Elements and Roofing: Long lifespan, corrosion resistance, unique aesthetic (typically CP Grade 2).
  • Structural Tubing: Where high strength and corrosion resistance justify the cost.
• Sports and Recreation:
  • Bicycle Frames: High-performance road and mountain bikes (Grade 9).
  • Golf Club Heads: Drivers and irons (Grade 5, Beta alloys).
  • Wheelchairs: Lightweight, durable frames.
  • Scuba Diving Equipment: Components requiring seawater resistance.

8. Technical Specifications

Our extruded titanium tubes are manufactured to meet or exceed relevant international standards and customer-specific requirements.

8.1 Standard Dimensions:

• Outside Diameter (OD): Typically ranging from approx. 20 mm (0.79 in) up to 350 mm (13.8 in) or larger, depending on the extrusion press capabilities and specific grade. Custom sizes outside this range may be possible via consultation.
• Wall Thickness (WT): Generally ranging from 2 mm (0.08 in) up to 50 mm (2.0 in) or more. The minimum achievable wall thickness is often related to the OD (OD/WT ratio).
• Length: Standard lengths are typically 4 to 10 meters (13 to 33 feet). We offer cut-to-length services to meet specific project needs, from short pieces to custom long lengths (subject to handling and shipping limitations).

8.2 Tolerances:

• Dimensional tolerances (OD, WT, ID) are typically governed by standards such as:
  • ASTM B861: Standard Specification for Titanium and Titanium Alloy Seamless Pipe.
  • ASTM B338: Standard Specification for Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Heat Exchangers (primarily covers smaller diameters/thinner walls, often produced by drawing, but tolerances can be referenced).  
  • AMS Specifications: (e.g., AMS 4943, 4944, 4945 for Grade 9 tubing) for aerospace applications.  
  • ISO Standards: Relevant ISO standards for titanium tubes.
  • Customer Specifications: We can work to specific, tighter tolerance requirements upon review.
• Straightness: Standard tolerances are typically 1:1000 (e.g., 1 mm deviation per meter length), but tighter tolerances can often be achieved.
• Ovality: Controlled within the OD tolerance limits specified by the relevant standard.

8.3 Surface Finishes:

• As-Extruded and Pickled: Standard finish after extrusion, cleaning, and acid pickling to remove alpha case and lubricant residue. Suitable for many industrial applications.
• Machined (OD and/or ID): For improved dimensional accuracy and smoother surfaces. Centerless grinding for OD, boring/honing for ID.
• Polished: Mechanical polishing for aesthetic requirements or specific functional needs (e.g., improved cleanability). Various grit finishes available.
• Abrasive Blasted: Provides a uniform matte finish.

8.4 End Finishes:

• Plain Ends (PE): Cut square and typically deburred.
• Beveled Ends (BE): Prepared for butt welding, typically with a 30∘ to 37.5∘ bevel angle (as per ASME B16.25 or customer requirements).

8.5 Applicable Standards: Our products can be manufactured and certified to various international standards, including but not limited to:

• Material Specifications: ASTM B348 (Bar/Billet for conversion), ASTM B861 (Seamless Pipe), ASTM B338 (Seamless Tube), AMS specifications, ASME SB-861, ASME SB-338, DIN 17861, JIS H4631.
• Testing Standards: ASTM E8 (Tensile), ASTM E112 (Grain Size), ASTM E1409 (Chemical Analysis), ASTM E1447 (Hydrogen Analysis), ASTM E290 (Bend Test), ASTM E120 (Hardness), Non-Destructive Testing (NDT) standards (ASTM E213 for UT, E426 for ET, etc.).

Please specify the required standards and specifications when requesting a quote.

9. Quality Assurance and Certification

Quality is the cornerstone of our manufacturing philosophy. Our extruded titanium tubes undergo rigorous quality control procedures at every stage, from raw material inspection to final product release, ensuring full traceability and compliance with the highest industry standards.

9.1 Material Control:

• Incoming raw materials (billets) are verified against purchase order requirements and supplier certifications for chemical composition, dimensions, and freedom from defects.
• Strict segregation and identification procedures are maintained throughout the manufacturing process to ensure alloy integrity and traceability.

9.2 In-Process Inspection:

• Billet heating temperatures and furnace atmospheres are continuously monitored and controlled.
• Extrusion parameters (pressure, speed) are recorded.
• Dimensional checks are performed immediately after extrusion and straightening.

9.3 Final Inspection and Testing: A comprehensive suite of tests is performed on finished tubes (on a per-lot or per-piece basis, depending on specifications) which may include:

• Chemical Analysis: Verification of alloy composition using Optical Emission Spectrometry (OES) or Inductively Coupled Plasma (ICP). Interstitial analysis (O, N, H, C) using LECO analyzers.
• Mechanical Testing:
  • Tensile Testing (at room temperature and/or elevated temperature) to determine Yield Strength, Ultimate Tensile Strength, Elongation, and Reduction of Area (ASTM E8).
  • Hardness Testing (Rockwell, Vickers, or Brinell).
  • Flattening Test (ASTM B861/B338) to assess ductility.
  • Flaring Test (ASTM B338) for heat exchanger tubes.
  • Bend Test (ASTM E290) where required.
• Metallurgical Examination:
  • Microstructure Analysis (Grain Size determination – ASTM E112).
  • Alpha Case depth measurement (if applicable).
• Dimensional Inspection: Verification of OD, WT, ID (if applicable), length, straightness, and end preparation using calibrated measuring instruments (micrometers, calipers, ultrasonic gauges, profilometers).
• Non-Destructive Testing (NDT): Essential for ensuring tube integrity, especially for critical applications. Common methods include:
  • Ultrasonic Testing (UT – ASTM E213): Detects longitudinal, transverse, and potentially oblique internal and surface defects.
  • Eddy Current Testing (ET – ASTM E426): Primarily detects point defects and discontinuities on the surface and near-surface.  
  • Hydrostatic Testing: Pressure testing to verify integrity against leaks (pressure and duration as per standard or customer requirement).
  • Dye Penetrant Testing (PT): Detects surface-breaking cracks and porosity.
  • Radiographic Testing (RT): Can be used for weld inspection if applicable (though extruded tubes are seamless) or specific defect investigation.

9.4 Certification and Documentation:

• All orders are shipped with a Material Test Report (MTR) or Certificate of Conformance (CoC) compliant with EN 10204 3.1 (or 3.2 if third-party inspection is requested).
• The MTR details the chemical composition, mechanical test results, heat treatment performed, NDT results (if applicable), dimensional inspection results, and full traceability to the original heat/lot number.
• Our quality management system is certified to ISO 9001. We can also comply with industry-specific standards like AS9100 (Aerospace) or meet specific customer quality requirements upon agreement.

10. Handling, Storage, and Installation Recommendations

Proper handling and storage are essential to maintain the quality of titanium tubes:

• Handling: Use clean handling equipment (e.g., nylon slings, padded forks) to avoid surface contamination (especially iron) and mechanical damage (scratches, dents). Avoid direct contact with steel tools or fixtures where possible.
• Storage: Store tubes in a clean, dry, covered area, away from contaminants (especially chlorides, fluorides, and free iron). Use wooden or plastic racking systems; avoid direct contact with steel racks. If stored outdoors for short periods, ensure they are covered and protected from the elements. Keep different alloys segregated.
• Cleaning: Before installation, especially for critical applications (medical, food, ultra-pure systems), ensure tubes are thoroughly cleaned to remove any surface contaminants, oils, or residues. Specific cleaning procedures may be required depending on the application.
• Installation: Use appropriate tools and techniques for cutting, bending, flaring, and welding titanium. Ensure compatibility with other system materials to avoid galvanic corrosion (though titanium is generally noble). Follow established welding procedures (e.g., GTAW with proper inert gas shielding) for joining. Consult relevant codes and standards for installation practices.

11. Customization Options

Beyond our standard offerings, we provide extensive customization options to meet unique project requirements:

• Non-Standard Dimensions: We can evaluate requests for OD, WT, and lengths outside our typical ranges.
• Specific Alloys: Extrusion of less common or specialized titanium alloys may be possible upon technical review and volume consideration.
• Tighter Tolerances: Manufacturing to tighter dimensional, straightness, or ovality tolerances than standard specifications.
• Custom Heat Treatments: Specific annealing cycles, stress relieving, or STA parameters to achieve desired mechanical properties.
• Enhanced Surface Finishes: Specific Ra values for machined or polished surfaces.
• Specialized Testing: Additional NDT (e.g., immersion UT), corrosion testing, elevated temperature tensile tests, fatigue testing, or customer-specific test protocols.
• Precision Cutting: High-tolerance cut-to-length services.
• End Preparation: Custom bevels, threading, or grooving.
• Marking: Custom identification marking as per project requirements.

Please contact our sales or technical team to discuss your specific customization needs.

12. Ordering Information

To receive an accurate quotation and ensure timely delivery, please provide the following information when submitting an inquiry or order:

1. Product: Extruded Titanium Tube
2. Titanium Grade: (e.g., Grade 2, Grade 5, Grade 9, ASTM B861 Gr 2)
3. Dimensions:
   • Outside Diameter (OD)
   • Wall Thickness (WT) or Inside Diameter (ID)
4. Length: Required length per piece and tolerance (or specify random lengths).
5. 수량: Total meters, feet, kilograms, or number of pieces required.
6. Applicable Standards: Specify ASTM, ASME, AMS, DIN, ISO, or customer-specific standards.
7. Required Tolerances: If different from standard specifications.
8. 표면 마감: (e.g., As-extruded and pickled, OD machined)
9. End Finish: (e.g., Plain End, Beveled End)
10. Testing Requirements: Specify any required NDT (UT, ET, Hydro), additional mechanical tests, or special inspections.
11. Certification Requirements: (e.g., EN 10204 3.1, 3.2 witnessed inspection)
12. Application / End Use: (Optional, but helpful for understanding context and offering technical support)
13. Delivery Requirements: Required delivery date, shipping destination.

Contact our sales team via phone, email, or our website contact form to submit your request for quotation (RFQ).

13. Why Choose Meituo Steel for Extruded Titanium Tubes?

• Uncompromising Quality: Adherence to rigorous quality control systems and international standards.
• Technical Expertise: Experienced metallurgists and engineers to assist with material selection and application challenges.
• State-of-the-Art Manufacturing: Utilizing advanced extrusion and processing technology.
• Wide Grade Selection: Comprehensive range of CP titanium and alloys available.
• Customization Capability: Flexible manufacturing to meet unique specifications.
• Full Traceability: Complete documentation and certification provided.
• Reliable Delivery: Commitment to meeting agreed-upon delivery schedules.
• Customer Focus: Dedicated support throughout the inquiry, ordering, and post-delivery process.

14. Conclusion: The Superior Choice for Demanding Applications

Extruded titanium tubes represent a premium engineering material, offering an unparalleled combination of lightweight strength, exceptional corrosion resistance, biocompatibility, and performance across a wide temperature range. The extrusion process yields a robust, seamless product with excellent metallurgical integrity, suitable for the most critical and demanding applications across aerospace, chemical processing, medical, marine, energy, and other advanced industries.

By choosing extruded titanium tubes from [Your Company Name], you are investing in a product manufactured to the highest standards of quality and precision, backed by technical expertise and a commitment to customer satisfaction. We are confident that our tubes will provide the reliability and long-term performance necessary for the success of your projects.

15. Call to Action

Ready to leverage the advantages of high-performance extruded titanium tubes?

• Request a Quote: Contact our sales team today with your specifications for a competitive quotation.
• Technical Consultation: Discuss your application requirements with our engineering experts to ensure optimal material selection.
• Explore Our Inventory: Inquire about available stock for faster delivery on standard items.

Contact us now

Partner with Meituo Steel for your premium titanium tubing needs.

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Disclaimer: The information provided on this product page is for general informational purposes only. While we strive to keep the information up-to-date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability with respect to the information, products, services, or related graphics contained herein for any particular purpose. It is the user’s responsibility to ensure the suitability of the product for their specific application through appropriate testing and engineering analysis. Specifications are subject to change without notice. Please consult with our technical team for application-specific recommendations and the most current product data. Meituo Steel assumes no liability for any loss or damage arising from the use of this information.