A titanium flange is a pipe‑end connecting part forged from pure titanium (TA1/TA2) or TC4 titanium alloy, which achieves sealed pipe jointing through bolt tightening. It features a circular disc design with a central through‑hole matching the pipe size, and evenly distributed bolt holes on the face for fastening with bolts or stud bolts. The product materials cover industrial pure titanium TA1, TA2, and high‑strength titanium alloy TC4, and the appropriate grade can be customized according to operating conditions such as medium acidity/alkalinity, temperature, pressure, and seawater chloride ion content.
Petroleum refining and chemical synthesis frequently transport highly corrosive media such as nitric acid, dilute sulfuric acid, saline water, chlorinated brine, and seawater. Ordinary stainless steels are prone to pitting and crevice corrosion over extended service. Titanium flanges possess a dense protective oxide film, offering corrosion resistance far superior to conventional metals:
In flowing seawater, the corrosion rate is virtually negligible, with a service life exceeding 30 years;
They completely resist chloride‑induced stress corrosion cracking (SCC), making them irreplaceable metal connectors for chlorine‑containing pipeline systems;
They are suitable for various acidic and saline chemical fluid transport, significantly reducing equipment maintenance and downtime costs caused by pipeline leakage.
Titanium has a density of only 4.5 g/cm³, about 57% that of steel. Under equivalent pressure‑bearing strength, titanium flanges weigh approximately 40% less than steel counterparts. This advantage is particularly critical in offshore drilling platforms, deep‑sea equipment, and marine piping systems, effectively reducing support loads, hull weight, and simplifying overall structural design.
Pure titanium flanges can operate stably at temperatures up to 300°C for extended periods; TC4 titanium alloy flanges maintain stable mechanical strength and creep resistance in the 300°C–600°C range, perfectly matching the operating conditions of petrochemical reactors, high‑pressure transfer lines, cracking units, and other core equipment.
Located in Baoji, Shaanxi – the "Titanium Valley of China," a core region with a complete domestic titanium industry chain – Baoji Lihua Nonferrous Metals Co., Ltd. was founded in 2006. For over 20 years, the company has been dedicated to the R&D, custom manufacturing, production, and export sales of titanium flanges, titanium forged rings, titanium/titanium alloy forgings, and other special nonferrous metal components.
The company owns a dedicated 1,800 m² modern production workshop equipped with over 30 precision machining units, including CNC lathes, CNC milling machines, and precision drilling machines, with an annual output value exceeding RMB 50 million. We can mass‑produce high‑ and low‑pressure titanium flanges, nickel flanges, socket‑weld fittings, and other pipeline components in full size ranges according to major global standards including Chinese GB, American ANSI, German DIN, British BS, and also support custom non‑standard forged parts based on drawings.
The company has established a full‑process standardized quality control system and holds a complete set of international industry certifications: ISO 9001 Quality Management System, German TUV, IQNET, ISO 9100 Aerospace System, French BV Classification Society, Norwegian DNV Classification Society, UK Lloyd's Register LR, SGS, DEKRA, and CE‑PED Pressure Equipment Directive. In‑house testing facilities include chemical composition analysis, metallographic structure inspection, mechanical property testing, and non‑destructive testing. Every titanium flange is subjected to comprehensive inspection before shipment to eliminate risks of leakage, cracks, and dimensional deviations.
Our products are widely used in petrochemicals, offshore engineering, ocean‑going vessels, biomedicine, aerospace, and new energy equipment industries. Domestically, our customers are distributed across major industrial provinces including Zhejiang, Shanghai, Guangdong, Shandong, and Henan; finished products are regularly exported to North America and multiple European countries, with steadily growing recognition in overseas projects.
From highly corrosive chemical reactor lines and offshore oil and gas platforms constantly exposed to seawater, to high‑temperature, high‑pressure refining reactors and non‑magnetic precision aerospace instruments, titanium flanges offer comprehensive advantages of corrosion resistance, lightweight, high‑temperature resistance, and non‑magnetic properties, providing long‑lasting, safe, and leak‑free piping connection solutions for a wide range of extreme operating conditions.
Leveraging the complete titanium industry chain resources of Baoji – the "Titanium Valley of China" – combined with over 17 years of experience in titanium flange forging and precision machining, Baoji Lihua Nonferrous Metals Co., Ltd. continues to provide domestic and international customers with high‑reliability titanium flanges and specialized titanium alloy forging packages. Upholding our product philosophy – "With Lihua Flanges, Connection Is No Challenge" – we stand firm at every critical piping joint, ensuring safe, efficient, and long‑term operation for industrial installations worldwide through stable and dependable quality.
