Baoji Lihua Nonferrous Metals Co., Ltd. (abbreviated as Lihua Titanium) was founded in 2006. Leveraging Baoji's industrial advantages and its own strong technical support, the company has been dedicated to the production and sales of titanium and other nonferrous metals for many years.
In the chlor-alkali industry—a "chemical battlefield" of continuous struggle against highly corrosive media—ensuring the safety of every connection point is the lifeline for sustained and stable production. For nearly two decades, Lihua Titanium has focused intently on this challenge, striving to become an expert in the field of titanium flanges. Fighting corrosion requires not only excellent materials but also extreme dedication and reliable manufacturing.
The chlor-alkali industry mainly produces caustic soda, chlorine, and hydrogen. Its production processes involve a wide range of highly corrosive media:
Chlorine Environment: Both dry chlorine and the more corrosive wet chlorine are strongly oxidizing and corrosive to most metals.
Hydrochloric Acid Environment: Hydrochloric acid at various concentrations and temperatures creates a typical strong-acid corrosive environment.
Chloride Solutions: Such as brine and hypochlorite, which can easily induce pitting corrosion and stress corrosion cracking.
High-Temperature Caustic Soda: Concentrated caustic soda at high temperatures is corrosive to many materials.
In such a "chemical battlefield," traditional 304 and 316 stainless steel flanges struggle to provide long-term resistance. They are prone to corrosion perforation and seal failure, leading to medium leakage. This not only results in material loss and environmental pollution but can also cause serious safety accidents. Shutdowns for replacement bring significant economic losses.
Faced with these severe challenges, the industry has found a reliable solution in titanium, which demonstrates nearly perfect compatibility.
Corrosion Resistance: Titanium instantly forms a dense, stable oxide film (TiO₂) in oxidizing media. This film has a strong self-repairing ability. In wet chlorine, chlorine water, hypochlorite, and chloride solutions, titanium's corrosion resistance is far superior to stainless steel, even exceeding that of some precious metals. Especially in chloride-containing environments, it is almost immune to pitting and crevice corrosion.
Mechanical Properties: Titanium has a high specific strength (strength-to-density ratio), allowing for lightweight flange designs while maintaining structural strength, which helps reduce the load on piping systems.
Thermal Stability: Within the temperature ranges involved in chlor-alkali processes, titanium maintains stable and reliable performance.
Titanium's inherent advantages must ultimately be translated into every strong connector within the piping system. This is where Lihua Titanium has focused its deep cultivation for nearly two decades. We specialize in converting high-quality titanium materials into high-performance titanium flanges through superior forging and machining processes, ensuring that their corrosion resistance and mechanical strength are fully realized under demanding conditions.
The value of titanium flanges is particularly prominent in specific sections of chlor-alkali production:
Brine Refining & Electrolysis Sections: In wet chlorine pipelines, anolyte systems, and dechlorination system piping connections, titanium flanges effectively resist corrosion from chlorides and hypochlorous acid, ensuring the safe and stable operation of electrolytic cells.
Chlorine Processing & Compression Section: Core equipment such as metal anodes, ion-exchange membrane electrolyzers, and anolyte pumps all require titanium components.
Hydrochloric Acid Synthesis Section: In hydrogen chloride gas and hydrochloric acid media pipelines, the service life of titanium flanges far exceeds that of flanges made from other metals.
Corrosion is an eternal adversary in the chlor-alkali industry, and choosing the right corrosion protection materials is key to winning this long-term battle. At every vulnerable connection point in the piping system, Lihua Titanium's flanges build a solid defense with their excellent inherent corrosion resistance and precision-manufactured quality.
In the chlor-alkali industry, correctly selecting the titanium grade is particularly important for ensuring safe, stable, and long-lasting equipment operation. Different titanium grades have unique characteristics suitable for various working conditions:
| TA1 (Gr.1) | TA2 (Gr.2) | TA9 (Gr.7 / Ti-0.2Pd) | |
|---|---|---|---|
| Key Characteristics | Best plasticity and toughness, lowest strength | Most balanced overall performance, good strength/ductility/corrosion resistance | Contains ~0.12%-0.25% palladium (Pd), greatly enhanced corrosion resistance |
| Tensile Strength | ≥ 240 MPa | ≥ 400 MPa | Significantly improved compared to TA2 |
| Typical Applications | Complex deep-drawn parts; low-pressure, ≤80°C environments (e.g., dilute caustic, brine tank components) | Workhorse for most normal to medium-temperature (~150°C) conditions: brine sections, electrolyte piping, wet chlorine piping (flanges, pump casings, valve bodies) | High-temp, high-concentration, acidic or reducing media; crevice-prone areas (e.g., flange gaskets); key equipment with variable/fluctuating media |
As a standardized industry enterprise and a "Specialized and Sophisticated" company in Shaanxi Province, Lihua Titanium has focused on titanium flanges for 20 years, helping over 5,000 companies solve industrial corrosion problems. For more information, please follow our WeChat public account "Lihua Titanium" and leave your company name and contact information. We will provide you with professional anti-corrosion solutions.
