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  • The widespread application of cast titanium alloys in the valve industry
    The widespread application of cast titanium alloys in the valve industry Jan 07, 2026
    Titanium alloys have become a vital component in various industries due to their distinct performance advantages in the field of materials science. Cast titanium alloys, a significant component of the titanium alloy category, are produced through casting processes and exhibit considerable application potential in valves and numerous other industries. Cast titanium alloys offer a number of key advantages over traditional alloy materials. Their low density allows for effective weight reduction while maintaining strength; high specific strength means that titanium alloys can withstand greater loads at the same weight; excellent corrosion resistance ensures stability in various harsh environments; and titanium alloys maintain good performance under both high and low temperatures. These characteristics have led to the widespread application of titanium alloys in petrochemicals, marine environments, biomedicine, aerospace, the automotive industry, and shipbuilding, among other fields. As the demands for material performance continue to increase across various industries, the advantages of titanium alloys are becoming increasingly prominent, making them a key factor in driving technological progress in these industries. Cast titanium alloys are products manufactured using a casting process to create specific shapes. The TC4 (Ti-6Al-4V) alloy is the most widely used. This alloy demonstrates consistent processing performance and exhibits exceptional strength and fracture toughness below 350°C. Titanium alloys can be classified based on composition as α, β, and α+β types. According to strength, they are categorized as medium-strength or high-strength. Based on operating temperature, titanium alloys are divided into low-temperature (less than or equal to room temperature), medium-temperature (400°C), high-temperature (greater than or equal to 500°C), and combustion-resistant categories. This diverse classification fully reflects the wide applicability of cast titanium alloys. For instance, the common TC4 cast titanium alloy contains between 5.5% and 6.75% Al, and between 3.5% and 4.5% V, with the remainder being Ti. Its tensile strength can reach 895 MPa, and its yield strength is 825 MPa, with mechanical properties similar to medium- and high-strength steel. This allows it to partially replace steel in certain applications. Its density of 4.4 g/cm³ is significantly lower than steel, making it an ideal material for reducing equipment weight. At the same time, it maintains the superior corrosion resistance of titanium alloys, which is unmatched by steel. Consequently, in industrial production scenarios where weight reduction is a priority, opting for a suitable cast titanium alloy can effectively minimize product weight while ensuring consistent performance. This performance advantage confers upon cast titanium alloys an irreplaceable position in fields characterized by extremely high demands on weight and corrosion resistance.   Marine Titanium Valves: The Chinese economy has seen rapid development, resulting in increased demand for valves in the market. The valve industry has experienced significant advancements. Valves are typically composed of multiple components, including the valve body, valve cover, valve disc, and valve stem. Each component has distinct material requirements. Common valve materials include gray cast iron, ductile iron, alloy steel, and copper alloys. However, in some harsh working environments and complex and special working conditions, conventional valve materials are difficult to meet production and scientific research needs. Titanium and cast titanium alloys have garnered attention due to their superior performance, and titanium valves have developed to a certain extent. As the marine economy continues to expand, the performance requirements for marine valves are increasing. The development of titanium valves aligns with this trend, making it a suitable solution for a variety of applications. The working environment of seawater piping systems is harsh, and the performance of marine valves directly affects the safety of the piping system. Since the 1960s, Russia has been a leader in the research and development of advanced titanium alloys for marine applications, with a focus on military ship piping systems. This initiative has led to the creation of a diverse range of titanium alloy valves, showcasing Russia's expertise in the field. Concurrently, civilian ship piping systems began incorporating titanium valves. In comparison with materials such as copper alloys and steel, the use of cast titanium alloys significantly improves the reliability of the valve's structural strength and corrosion resistance, and greatly extends its service life, from the original 2-5 years to more than twice that.    Aerospace Titanium Valves: In the aerospace industry, cast titanium alloys demonstrate exceptional performance due to their high heat resistance and strength. In the 1960s, American aviation pioneered the use of titanium castings. Following a period of research from 1972 onward, the application of cast titanium alloys to aircraft was officially approved, including the Boeing 757, 767, and 777 models.  Titanium alloy castings were used extensively in static structures and began to be used in critical piping system valve control. Common valves include safety valves and check valves. The application of titanium alloys has been shown to reduce aircraft manufacturing costs while increasing safety and reliability. Titanium alloys, which weigh approximately 60% of steel of equivalent strength, have been used extensively in aircraft manufacturing due to their low density. This has led to the development of aircraft with high strength and lightweight designs. As aerospace technology continues to advance, the demands on materials are becoming more exacting. This creates significant opportunities to leverage the advantages of cast titanium alloys. At present, aerospace valves find primary application in pneumatic, hydraulic, fuel, and lubrication control systems. They are well-suited for environments requiring corrosion resistance and high temperatures. These components are essential for the operation of spacecraft and engines. Traditional valves often require periodic replacement or fail to meet requirements. However, with the rapid expansion of the aerospace valve market, titanium valves are gaining an increasing share due to their superior performance.   Titanium Valves in the Chemical Industry: Chemical valves are typically used in harsh environments involving high temperatures, high pressures, corrosion, and large pressure differentials, making material selection crucial. Early materials primarily consisted of carbon steel and stainless steel, but these materials were prone to corrosion over time, necessitating replacement and maintenance. The development of cast titanium alloy technology and the subsequent discovery of its superior properties have led to the increased utilization of titanium valves in the chemical industry. The advent of cast titanium alloys has introduced a new, high-quality option for valve material selection in the chemical industry. For instance, the production of purified terephthalic acid (PTA) in the chemical fiber industry involves the use of acetic acid and hydrobromic acid, which are highly corrosive substances. The project requires nearly 8,000 valves, and the types are numerous and complex. Titanium valves have become the preferred option due to their enhanced reliability and safety. In the field of urea synthesis, traditional valves have a limited lifespan. Some fertilizer plants have tried using titanium high-pressure check valves and insulated globe valves for the inlet and outlet of urea synthesis towers. These valves have a service life of more than two years, demonstrating good corrosion resistance and reducing valve replacement frequency and operating costs. Titanium and its alloys possess superior properties, making them ideal substitutes for materials such as steel.  In addition, titanium resources are abundant, and as such, have attracted the attention of numerous researchers. Despite the present challenges in the extraction, smelting, and processing of titanium, both the valve industry and the titanium industry are vibrant and rapidly developing sectors. Advancements in stable titanium mining and production technologies, as well as the introduction and refinement of new processes, will make the application of cast titanium alloys and castings in the valve industry more mature and scalable. There will also be broad application prospects in other industries.
  • Seamless Titanium Tubes vs. Welded Titanium Tubes: How to Choose the Right High-Performance Piping for Your Needs
    Seamless Titanium Tubes vs. Welded Titanium Tubes: How to Choose the Right High-Performance Piping for Your Needs Dec 17, 2025
    Why are Titanium Tubes So Important? In modern industrial fields, from aerospace to medical devices, from desalination to chemical processing, titanium tubes have become the material of choice in many critical applications due to their superior performance. However, when you need to purchase titanium tubes, you face a fundamental choice: seamless titanium tubes or welded titanium tubes? Understanding the differences and advantages of each is crucial to ensuring project success. What are Seamless Titanium Tubes? Seamless titanium tubes are made by heating a solid titanium billet, then perforating it with a piercing machine, and finally processing it through rolling or drawing. The entire process does not involve any welding, so the pipe is structurally completely continuous. Manufacturing Process of Seamless Titanium Tubes: Billet Preparation: Selecting high-quality titanium billets Heating and Perforation: Heating the titanium billet to the appropriate temperature and then perforating it Rolling and Forming: Forming the tube through a rolling process Finishing: Achieving the final size and performance through processes such as cold drawing and heat treatment   Unique Advantages of Seamless Titanium Tubes 1. Excellent Structural Integrity Seamless titanium tubes have no welds, which means the entire pipe cross-section has uniform mechanical properties, without the weak points that welding might introduce. This characteristic makes them more reliable under high pressure, high temperature, or extreme operating conditions. 2. Superior Corrosion Resistance Because there are no welds, seamless titanium tubes avoid microstructural changes and potential corrosion problems that may occur in welded areas. This is especially important for applications involving corrosive chemicals or seawater. 3. Higher Pressure Resistance The seamless structure allows titanium tubes to withstand higher internal and external pressures, making them ideal for high-pressure systems (such as aerospace hydraulic systems and high-pressure heat exchangers). 4. Excellent Surface Quality Seamless titanium tubes typically have smoother inner and outer surfaces, reducing flow resistance and preventing the accumulation of deposits. This makes them particularly suitable for applications requiring high levels of cleanliness, such as medical equipment or food processing. 5. Wide Range of Size Adaptability Although manufacturing large-diameter seamless titanium tubes is more difficult, for small and medium-diameter pipes, the seamless process provides more precise wall thickness control and dimensional consistency. Comparison of Seamless Titanium Tubes and Welded Titanium Tubes Feature Comparison Seamless Titanium Tube Welded Titanium Tube Welded Titanium Tube Formed in one piece through piercing and rolling Made by rolling and welding titanium plates/strips Structural Continuity Completely continuous, no welds Has longitudinal or spiral welds Wall Thickness Uniformity Excellent, precisely controllable Good, but slight variations may occur in the weld area Pressure Resistance Higher, evenly distributed Good, but the weld may be a weak point under pressure Corrosion Resistance Uniform throughout, no weld-affected zone Good, but the weld area may have slight differences Cost Factors Higher, especially for large diameter pipes Relatively lower, especially suitable for large diameter thin-walled pipes Size Range Significant advantages for small and medium diameters More suitable for large diameter, thin-walled pipes Production Cycle Relatively longer Usually shorter, especially for standard sizes   Welded titanium tubes are also an excellent choice in many applications:   Cost-effective: For large-diameter or thin-walled pipes, welded titanium tubes are often more cost-effective. Size flexibility: Extra-large diameter titanium tubes can be produced. Fast delivery: Standard sizes of welded titanium tubes usually have shorter delivery times. Technological advancements: Modern welding technologies (such as TIG and plasma welding) can produce high-quality welds.   How to choose: Application scenario guide Situations for choosing seamless titanium tubes: High-pressure systems (working pressure exceeding the capacity of welded pipes) Extreme corrosive environments (especially to avoid the risk of weld corrosion) High-purity applications (pharmaceuticals, semiconductor industry) Critical aerospace components Applications requiring extremely high fatigue life   Situations for choosing welded titanium tubes: Large-diameter low-pressure pipelines Cost-sensitive projects with non-extreme operating conditions Non-pressure-bearing components such as heat exchanger shells Standard size pipes requiring fast delivery Large structural components Both seamless and welded titanium tubes have their advantages and applicable scenarios. Seamless titanium tubes are irreplaceable in the most demanding applications due to their superior structural integrity, corrosion resistance, and pressure bearing capacity. Welded titanium tubes, on the other hand, provide a practical solution in cost-sensitive or large-size applications. NBSM provides high-quality seamless titanium tubes and can provide a full range of certification documents.
  • The Art of Seamless Titanium Tube Manufacturing: A Journey from Titanium Ingot to Precision Tubes
    The Art of Seamless Titanium Tube Manufacturing: A Journey from Titanium Ingot to Precision Tubes Dec 12, 2025
    Titanium—an extraordinary material hailed as the "space metal"—plays a crucial role in aerospace, medical implants, and high-end chemical industries due to its exceptional strength-to-weight ratio, corrosion resistance, and biocompatibility. Seamless titanium tubes are the preferred choice for many demanding applications. But have you ever wondered how these flawless titanium tubes are manufactured? Let's step into the world of seamless titanium tube production.   I. Raw Material Processing First, all incoming materials undergo inspection. After passing inspection, they are sawn and cut according to process requirements. II. Forging of Raw Ingots After heating the ingots, a high-speed forging mill is used to create the blank, followed by electro-hydraulic hammer forging of the raw ingot. III. Blanking and Turning The raw ingot is sawn and then machined into a finished bar conforming to process requirements using a lathe. IV. Piercing After heating the finished bar, it is pierced using a two-roll or three-roll skew rolling mill to produce a tube blank. V. Sizing and Straightening After piercing, the tube blank is sizing and straightened using residual heat to achieve the required dimensions. VI. Surface Treatment After piercing, the inner and outer surfaces of the tube blank need to be ground to remove defects. VII. Cold Working The tube blank undergoes rolling or drawing processes to produce finished tubes of the required dimensions. VIII. Heat Treatment Process standards are strictly followed, and the holding temperature, holding time, and cooling rate are precisely controlled. The temperature uniformity of the heating furnace is regularly tested. The inspector verifies that the heat treatment operation meets the process requirements and issues a heat treatment report. IX. Straightening  Straightening is performed using a pipe-specific straightening machine. The curvature must meet the process requirements. X. Surface Treatment Polishing or pickling is performed according to the process standards. The inspector checks the surface quality and signs off upon acceptance. XI. Cutting to Length The finished pipes are cut to length according to the process requirements using a saw or pipe cutter, and the dimensions are verified. XII. Warehousing Before warehousing, the outer diameter, thickness, length, curvature, and other items of the pipes are inspected again. After the inspector confirms that all inspection items are qualified, the pipes are printed with codes, packaged, and put into storage.   Why Choose Seamless Titanium Tubes? Compared to welded titanium tubes, seamless tubes offer significant advantages: Seamless construction, uniform structure, and higher reliability Better pressure resistance and fatigue performance More uniform and isotropic mechanical properties Suitable for more demanding applications From high-temperature smelting to precision cold working, every step embodies the essence of materials science and engineering. The next time you see fuel lines in aerospace engines, heat exchangers on deep-sea drilling platforms, or orthopedic implants in the human body, you'll know that behind these seamless titanium tubes lies an extraordinary journey from titanium ingots to precision tubing.   In the pursuit of lighter, stronger, and more durable materials, the manufacturing technology of seamless titanium tubes continues to evolve—with more precise dimensional control, superior performance customization, and more environmentally friendly production processes. This is the allure of materials engineering: transforming the elements of the earth into extraordinary products that drive human progress.
  • Applications of Titanium Steel Clad Plates in Chemical Reactors: Durability, Corrosion Resistance, and Industry Impact
    Applications of Titanium Steel Clad Plates in Chemical Reactors: Durability, Corrosion Resistance, and Industry Impact Sep 16, 2025
    Titanium-steel clad plates are transforming the chemical industry. Their corrosion resistance, structural strength and cost-effectiveness make them the obvious choice. This innovative material combines a titanium layer (reaction layer) with a steel substrate (structural layer), making it the ideal solution for demanding chemical environments. This product is guaranteed to be durable and long-lasting. Titanium-steel clad plate reactors are the most durable option for industrial applications. Industry standards state that the design service life for general vessels and heat exchanger shells made from this material must be a minimum of 10 years, while critical equipment such as oxidation reactors, refining reactors, and crystallizers must have a design service life of no less than 20 years. Titanium-steel clad reactors have a significantly longer service life than traditional materials: Material Type Service Life Maintenance Cost Corrosion Resistance Titanium-steel clad 10-15 years Low (<1% annual repair rate) Excellent (full pH range) Ordinary carbon steel 3-5 years High (frequent derusting) Poor (prone to rust) Enameled steel 5-8 years Relatively high (fragile) Moderate (afraid of impact)   Titanium-steel clad reactors have an extended service life, which reduces the total cost of ownership over time. Invest in these reactors and you will see that, although the initial investment is approximately 40% higher than for traditional stainless steel reactors, the comprehensive usage cost over a five-year period is actually 18% lower. This makes them economically advantageous in the long run. Superior corrosion resistance The corrosion resistance of titanium-steel composite plates is undoubtedly their most valuable characteristic in chemical processing applications: Full pH Stability: Titanium's inherent oxide layer (TiO2) displays unparalleled corrosion resistance across the full pH spectrum, especially in conditions where chloride ion concentrations surpass 500 ppm. Chemical Compatibility: Titanium demonstrates exceptional resistance to acids, alkalis, salts and oxidising agents. However, it is not recommended for use with certain specific media, such as fuming nitric acid under specific conditions, methanol, trichloroethylene, liquid N2O4, molten metal salts, pyridine, hydrogen gas and bromine vapour. Minimum Corrosion Allowance: For titanium and titanium-steel composite equipment, a corrosion allowance of 0 mm may be applied, highlighting its exceptional resistance to corrosion thinning. This corrosion resistance directly translates to reduced maintenance requirements, enhanced operational safety, and improved product purity by eliminating metallic contamination in sensitive processes such as pharmaceutical manufacturing. Impact on the Chemical Processing Industry The adoption of titanium-steel composite technology has had several key impacts on the chemical processing industry: This product facilitates the processing of highly corrosive materials. Industries can now efficiently handle strong acids, strong alkalis, and salt solutions that conventional equipment is unable to withstand. This development opens up new possibilities for chemical synthesis and processing. The objective is to reduce lifecycle costs. While the initial investment is higher, the extended service life and reduced maintenance requirements of these units significantly lower the total cost of ownership over the equipment's lifecycle. Enhanced Safety and Reliability: The product's exceptional corrosion resistance minimises the risk of catastrophic failures and unplanned downtime, thereby improving overall plant safety and operational reliability. Supporting Industry Compliance: As environmental regulations intensify, titanium-steel composite equipment helps plants more effectively meet emission and safety standards. Enabling Large-Scale Production: The availability of large composite plates (up to 4000×6000 mm) facilitates the construction of massive reactors for industrial-scale manufacturing. Other Chemical Industry Applications of Titanium-Steel Clad Plates Titanium-steel clad plates have a wide range of uses in the chemical processing industry, extending beyond reaction vessels. 1. Heat Exchangers and Condensers: This is used in shell-and-tube heat exchangers, especially when titanium tubes are welded to titanium-steel composite tube sheets. This creates units with superior corrosion resistance and thermal performance. 2. Towers and Columns: Employed in construction of distillation columns, absorption towers, and extraction columns operating in corrosive environments. 3. Storage Tanks and Pressure Vessels: This is the perfect solution for storing corrosive chemicals where both structural integrity and corrosion resistance are essential. It is used in the large acetic acid mother liquor tanks at Tianjin Petrochemical, for example. 4. PTA (Purified Terephthalic Acid) Production Equipment: PTA production facilities absolutely require essential components, including oxidisers and crystallisers. 5. Piping Systems: This is the perfect solution for critical sections of piping handling highly corrosive media. There's no question that solid titanium piping would be prohibitively expensive. 6. Electrochemical Processing Equipment: Titanium is the material of choice for electrolysis cells, electroplating tanks and other electrochemical processing equipment. Its excellent electrical properties and corrosion resistance make it the perfect solution. 7. Fume Handling Systems: Titanium is the perfect material for use in ductwork, scrubbers and stacks handling corrosive fumes. It is particularly useful in power plant flue gas desulfurisation (FGD) systems where its resistance to sulfurous compounds is valuable. 8. Salt Production Equipment: Used in evaporation tanks and other equipment in vacuum salt production facilities due to exceptional resistance to salt corrosion.   Future Outlook and Development Trends The future of titanium-steel clad plates in the chemical industry is undoubtedly promising, driven by several developing trends: Technology innovation: Manufacturing processes like explosive compounding and hot rolling compounding are clearly improving, enhancing bond strength between layers (now exceeding 450MPa) while reducing material waste. Market growth: The global titanium-steel clad plate reactor market reached approximately $2.85 billion in 2023 and will exceed $3.2 billion by 2025, with a compound annual growth rate of 9.2%. Application expansion: Beyond traditional chemical processing, new applications are emerging in hydrogen energy storage, nuclear pressure vessels and lithium battery material synthesis, where penetration rates have increased from 15% in 2020 to 32% in 2023. Material development: New titanium alloys and composite configurations are being developed to address even more challenging processing conditions and expand the operational limits of chemical processing equipment.   Conclusion Titanium-steel clad plates are vital materials in modern chemical processing. They offer unparalleled corrosion resistance, structural integrity and economic viability. Their adoption has undoubtedly enabled chemical processors to operate more safely, efficiently, and reliably in increasingly demanding environments while managing lifecycle costs effectively. Titanium-steel clad solutions are set to play a pivotal role in the future of the chemical industry. The ongoing advancements in material technologies and the increasing complexity of manufacturing processes are making these solutions a clear choice. As processes become more aggressive and environmental standards more stringent, titanium-steel clad solutions are the obvious answer. The ongoing development of these composite materials is a strategic investment in the future of chemical processing technology worldwide.
  • Pushing the Limits of Composite Technology:  8+450mm Ultra Thick Titanium Steel Composite Plates
    Pushing the Limits of Composite Technology: 8+450mm Ultra Thick Titanium Steel Composite Plates Sep 02, 2025
    Discover how these plates are empowering the next generation of projects in the chemical, nuclear power and offshore engineering industries. Explore the manufacturing challenges they present and the immense advantages they offer. The demand for materials capable of withstanding extreme environments, such as high pressures and highly corrosive chemicals, as well as decades of service life, continually pushes the boundaries of manufacturing. Titanium steel composite plates have long been the gold standard for critical applications, combining titanium's corrosion resistance with steel's structural strength and cost-effectiveness. However, as engineering projects grow in scale and ambition, the materials used to construct them must also evolve. A new generation of metal laminates is emerging in the form of ultra-thick titanium-steel composites, exemplified by 8 mm thick titanium layers over 450 mm thick steel backing plates. This represents a quantum leap, not an incremental improvement. Let's examine the significance of this specification and explain why it is reshaping heavy industry.   Why such thickness? Engineering necessity:   The '8+450 mm' dimensions are not arbitrary; they directly address specific and demanding engineering challenges. Exceptional corrosion resistance and longevity: An 8 mm pure titanium coating is extremely thick for a cladding material. This provides formidable corrosion resistance, enabling the material to withstand severe chemical erosion for 30, 40 or even 50 years without risk of failure. This is critical for applications such as: Large chemical reactors: Their walls must withstand high pressure and temperature while resisting highly corrosive substances such as acids and chlorides. Flue gas desulfurisation (FGD) systems in major power stations: These systems handle large volumes of abrasive and corrosive slurries. Exceptional structural integrity: 450 mm carbon steel bac king provides the immense mechanical strength required. Nuclear power plant components: Pressure vessels, reactor internals and containment systems, in which wall thickness is critical for safety, radiation shielding and withstanding immense working pressures. High-pressure process vessels: Used in the oil and gas, petrochemical and hydroelectric industries. Critical marine and offshore structures: Components for offshore platforms or ship hulls that are subjected to extreme ocean forces.   Manufacturing marvels: How is this achieved?   Producing composite plates of such thickness is an advanced engineering feat. The most common and effective method is explosive welding. Explosive welding (EW): This process involves placing a titanium plate (the 'composite plate') parallel to a thick steel plate (the 'backing material'). A precisely calculated explosive charge is placed on top of the titanium plate. Upon detonation, the explosive energy propels the titanium plate through the gap and strikes the steel surface at an extreme velocity and angle. This impact generates a jet stream that cleans and presses the surfaces together under immense pressure, forming an atomic-level metallurgical bond. This creates a unique wavy interface that ensures a strong, durable connection without compromising the properties of either metal. Overcoming the challenge: bonding steel plates of this thickness requires precise control of explosive energy. Too little energy will fail to form a bond across the entire interface, while too much could damage the materials. Accelerating the 8 mm-thick titanium layer also demands immense energy to achieve uniform bonding. This process requires complex computer modelling and decades of specialised expertise.   Key advantages of this ultra-thick composite plate:   Cost-effectiveness: It delivers performance comparable to pure titanium at a fraction of the cost, yielding significant savings on materials for large-scale projects. Reliability: The explosion welding process creates a permanent, 100% metallurgical bond with exceptional mechanical properties, including high shear strength. Performance optimisation: Engineers benefit from a thick, corrosion-resistant barrier on one side and an exceptionally robust structural material on the other. Design flexibility: Despite their large size, the plates can be formed, welded using specialised techniques, and machined into final components, offering tremendous freedom when designing large structures. Redefining Applications: The arrival of reliably produced, ultra-thick composite plates opens up new possibilities: Next-generation nuclear reactors: (e.g. small modular reactors (SMRs) and fusion reactors). Giant chemical processes for large power plants; High-pressure, high-temperature (HPHT) subsea equipment for deep-sea oil and gas extraction; Specialised heavy machinery for mining and metallurgy. Layers upon layers, building the future together. The 8+450 mm titanium steel clad plate is more than just a piece of metal; it embodies the ingenuity of the human race in the field of materials science. It demonstrates our capacity to overcome the world's most challenging engineering obstacles by combining the ideal properties of various materials in a creative manner.   As industries continually pursue larger, safer and more efficient solutions, these ultra thick composites will become the true pillars of our planet's most critical infrastructure.
  • Conquering the Extremes of
    Conquering the Extremes of "Thin" and "Large": Titanium Alloy Seamless Large-Diameter Thin-Wall Pipes Aug 06, 2025
    In high-end manufacturing, seamless, large-diameter titanium alloy pipes represent the pinnacle of material and process engineering. However, combining 'large-diameter' (typically ≥Φ300 mm) with 'thin-wall' (wall thickness ≤5 mm, often ≤3 mm) exponentially increases the technical challenges. It's not just about the material; it's a rigorous test of precision manufacturing.   Why is large-diameter, thin-wall so difficult? Forming dilemma: traditional rolling or extrusion of large-diameter pipes puts immense radial force on the thin walls, causing instability, wrinkling or even tearing. Uniformity challenge: ensuring millimetre-level consistency in wall thickness across a large cross-section requires highly precise equipment, die design and process control. The slightest deviation creates weak points. Strength-toughness balance: Thinner walls mean that less material must withstand equal or higher pressures. The core challenge lies in guaranteeing sufficient strength, toughness and fatigue resistance through microstructural control, whilst also achieving weight reduction.   Key Breakthrough Technologies: 'Balanced rigidity and flexibility' forming: This utilises multi-stage, temperature-controlled hot extrusion combined with powerful back-pressure or internal mandrel support, which acts like a 'skeleton' to prevent collapse. This is followed by multi-pass cold rolling/spinning for progressive thinning, enhanced dimensional accuracy and a better surface finish. NDT's "Eagle Eye": Large-diameter, thin-wall pipes demand zero tolerance for defects. High-precision automated ultrasonic testing (UT) and eddy current testing (ECT) provide full coverage and can detect even the smallest inclusions, micro-cracks or variations in wall thickness, guaranteeing integrity.   Why pursue 'thin' and 'large'? Ultimate weight reduction: This is crucial for aerospace and deep-sea structures, where saving 1 kg can make a big difference. These pipes can offer up to 40% weight savings compared to conventional solutions, thereby increasing payload and efficiency. Enhanced flow efficiency: In the chemical and energy sectors, larger diameters enable higher flow rates and throughput, while thinner walls reduce material usage and thermal resistance.     The manufacturing of seamless titanium alloy large-diameter thin-wall pipes is a symphony of materials science, precision processing and intelligent control. Each successful reduction in wall thickness or increase in diameter represents another leap forward in humanity's extreme manufacturing capabilities. These are not just pipes; they are critical enablers of a lighter, stronger and more efficient future. Emerging technologies such as intelligent shape control and additive-composite integration will continue to push the boundaries of what is possible in terms of "thin" and "large".   NBSM is committed to promoting the development of the titanium product industry and expanding the range of applications for titanium products. As a professional titanium alloy manufacturer, NBSM offers a comprehensive product range, including highly acclaimed titanium plates, titanium rods and titanium tubes. Titanium steel clad plate and nickel steel clad plate have also received positive feedback from the chemical and power plant industries.
  • Titanium steel composite plate: The
    Titanium steel composite plate: The "anti-corrosion armor" of the pressure vessel industry. May 28, 2025
    In concentrated sulfuric acid boiling reactors, desulfurization chimneys in high-humidity, corrosive environments, and deep-sea oil and gas platform equipment, a composite material consisting of a titanium and steel base layer is the ultimate solution for pressure vessels against extreme corrosion. It can withstand hundreds of atmospheres of pressure and corrosive media that even stainless steel finds difficult to resist, while costing only one-third as much as pure titanium equipment. It can withstand corrosive media and is only one-third the cost of pure titanium equipment. Performance Advantage: A low-cost solution to the problem of high corrosion.The core value of the titanium steel composite plate lies in its complementary materials:Titanium compound layer (TA1/TA2): Resistant to strong acids (such as concentrated sulfuric acid and acetic acid) and seawater corrosion. The annual corrosion rate is less than 0.001 mm, which is far better than stainless steel (such as 316L, which perforates in wet chlorine gas in only two years). The steel base (Q345R/16MnR) provides structural strength and a pressure-bearing capacity of more than 3.5 MPa at a cost of one-eighth that of titanium.The composite interface uses metallurgical bonding through explosion welding with a shear strength of more than 300 MPa to ensure zero media penetration. Application scenario: "Invisible Defender" on the battlefield of corrosion. 1. Chemical Equipment: Survival in a Strong Acidic Environment PTA (purified terephthalic acid) plant: A 1000 m² large-scale oxidation reactor condenser with a titanium composite layer that resists mixed corrosion from acetic acid and bromide at 180°C. 2. Electric power and environmental protection: Anti-corrosion revolution of the desulfurization chimney.Flue gas after wet desulfurization contains corrosive substances, such as SO₃ and Cl⁻. The titanium-steel composite plate chimney inner tube: It has a life span three times longer than an FRP coating solution and an overall cost that is 40% lower.3. New Energy and Marine Engineering LNG storage tanks have a titanium composite layer that resists the embrittlement and corrosion caused by -162°C liquid natural gas and hydrogen sulfide. The maintenance cycle has been extended from six months to five years. Desalination Equipment: The high-pressure pump shells are made of an exploded composite plate and are 50 times more resistant to chlorine-ion corrosion than stainless steel.
  • Why has the titanium plate become the
    Why has the titanium plate become the "universal card" of cutting-edge fields? May 28, 2025
    Titanium alloy plates have swept the material world with their light weight, high strength (density of 4.51 g/cm³ and strength up to twice that of steel), and extreme environmental adaptability (-253°C to 600°C stable operation and a seawater corrosion rate of less than 0.001 mm/year). More critical is its triple-core advantage: First, biocompatibility: the osteointegration rate of medical titanium plates exceeds 95%, and the Ti-6Al-7Nb alloy eliminates vanadium toxicity and reduces the wear rate by 60%. Performance adjustability: Alloying allows for precise matching of needs. For example, the resistance of a TA10 titanium plate to concentrated hydrochloric acid corrosion is 50 times greater than that of stainless steel. Process extensibility: It can be used for traditional rolling, explosion compositing, and 3D printing. It can be adapted for use with ultra-thin foils (0.089 mm) and wide, thick plates (3,300 mm). Titanium alloy application areas:1. Aerospace: Effectively enhances satellite load and is resistant to deep cold environments.2. Deep-Sea and Nuclear Energy: Withstands high-intensity water pressure and is highly corrosion-resistant.3. Medical and healthcare: The titanium alloy bone plate fits with high precision and has strong bending fatigue resistance and a short fusion cycle.4. Chemical ships: corrosion resistance, extended equipment maintenance cycles, and a service life far beyond that of other materials. Titanium alloy plate has become a “universal medium” for high-end manufacturing due to its plasticity and environmental adaptability, as evidenced by its use in everything from deep-submersible spherical shells to folding screen hinges.  
  • The irreplaceable
    The irreplaceable "Aesthetics of Violence" May 28, 2025
    Explosive composite technology continues to push the limits of metal composites with its high-temperature, high-pressure operation and unlimited material possibilities. Titanium-steel composite products occupy a 30% market share in China, confirming their irreplaceability in high-end manufacturing. As the industry moves toward lightweight, corrosion-resistant, and functional upgrades, the explosive "aesthetics of violence" will continue to reveal new possibilities in the world of materials. The principle of technology: instant violence versus continuous pressure. Explosive composite:Through the detonation of explosives generated by high-speed impact (with a burst speed of 1,800–3,000 m/s), the "compound plate" is driven at high speed into the "substrate" in microseconds, achieving metallurgical bonding. Rolling composite:A hot rolling mill applies continuous pressure and a high temperature (1200-1250°C) to multi-layer stacked metal plates, bonding them through plastic deformation. A typical example is Anshan Steel's production of X65 grade nickel-based composite plates, which requires strict control of the rolling temperature, underpressure rate, and cooling rate. This process involves complex compositional corrections and modeling control. The three core advantages of Explosion Composite: 1. High degree of freedom in material combination Explosion composite can achieve the "marriage of metals" that traditional rolling finds difficult to reach: Titanium-steel: Used in nuclear power condensers and chlorine corrosion resistance. Life is 50 years (compared to 35 years for pure steel). Zirconium-steel/silver-steel: used in acetic acid towers and electronic-grade polysilicon reduction furnaces, breaking the foreign monopoly⁷. 3Cr13-Q355B is a high-wear-resistant composite realized by a transition layer of powder (carbonyl iron powder + cerium nitrate). It is used in centrifugal fans to resist particle wear.   2. Significant cost-effectiveness For example, the 601 + 310S heat-resistant steel plate is significantly more cost-effective. The price of imported 601 steel is eight times that of domestic 310S steel. The composite 601 dosage is reduced by 50%, which directly reduces the cost. The performance is close to that of pure 601 heat-resistant steel.   3. There is greater performance enhancement space. Explosion composite can be superimposed after vacuum quenching and other post-treatments, such as the 3Cr13-Q355B composite plate with 1000°C vacuum solid solution and water cooling. This process enhances the surface hardness by 40% and the shear strength by over 450 MPa. Due to the limitations of the high-temperature process, it is difficult to achieve such a high level of reinforcement through rolling composite.    
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