Chemical and Marine Engineering Industry Solutions
The chemical and marine engineering industry faces long-term challenges from multiple corrosive factors such as strong acids, alkalis, high salt spray, high temperature and pressure, and marine biofouling. The corrosion resistance, structural stability, and service life of metal materials are directly related to equipment safety and production efficiency. From chemical reactors and transmission pipelines to marine platform structural components and seawater desalination equipment, all require metal materials to have extreme corrosion resistance and working condition adaptability. Relying on experience in special metal processing, Yunjie provides customized material and component solutions with outstanding corrosion resistance targeting industry pain points. The products comply with industry standards such as ASTM and GB/T and have been widely used in petrochemical, chlor-alkali chemical, deep-sea engineering and other fields.
Core Material Advantages and Product Recommendations
Combining the core links of reaction, transmission, and structural support in chemical and marine engineering, matching the corrosion resistance advantages of various special metals, we provide targeted product solutions and performance guarantees:
1. Zirconium: "Corrosion Resistance Champion" in Chemical Corrosive Environments
Zirconium's core advantage in the chemical field is its extreme corrosion resistance. It can withstand common corrosive media such as hydrochloric acid, sulfuric acid, and acetic acid of full concentrations, with a service life of over 8 years under harsh working conditions, far exceeding traditional materials such as stainless steel. Its application scenarios focus on chemical reaction equipment, such as liners and agitators of large-scale acetic acid synthesis reactors, which can resist long-term erosion of high-temperature acetic acid; transmission pipelines and valves of hydrochloric acid production equipment, avoiding the risk of medium leakage; it can also be used for corrosive raw material purification equipment in the pharmaceutical industry to ensure drug purity without pollution. The zirconium plates (thickness 0.2-20mm), zirconium tubes (caliber Φ10-Φ200mm), zirconium flanges, zirconium crucibles and other customized processed parts produced by Baoji Yunjie, after solution treatment, have an annual corrosion rate of ≤0.01mm in 30% hydrochloric acid at 120℃, fully meeting the requirements of long-term stable operation of chemical equipment.
2. Titanium: "Corrosion Prevention Mainstay" in Marine Engineering
Titanium has excellent seawater corrosion resistance, can form a stable oxide film in marine environments with high salt spray and alternating tides, and has no heavy metal precipitation. It is mainly used for pile leg structural components and guardrails of offshore platforms to resist seawater erosion; heat exchange tubes of seawater desalination equipment to improve heat exchange efficiency while avoiding corrosion leakage; it can also be used for frames and cages of marine aquaculture equipment. The GR1/GR2/GR5 titanium alloy products produced by Baoji Yunjie Metal have no obvious corrosion after soaking in artificial seawater for 10,000 hours, and the tensile strength retention rate is ≥95%.
3. Nickel: "Exclusive Material" for Chloride Corrosion Scenarios
Nickel has extremely strong corrosion resistance to chlorine and chlorine-containing media, and excellent catalytic activity, making it indispensable in chlor-alkali chemical and catalytic reaction scenarios. Application scenarios include anodes of ion-exchange membrane electrolyzers, which are resistant to dual corrosion of chlorine gas and lye; inner wall coatings of chemical catalytic reactors to improve catalytic reaction efficiency. The pure nickel plates (Ni99.5%) produced by Baoji Yunjie have an annual corrosion rate of ≤0.02mm in 10% sodium hypochlorite solution at 80℃, and the catalytic reaction conversion rate is 15%-20% higher than that of traditional materials.
4. Tantalum: "Stable Barrier" in Extreme Corrosive Environments
Tantalum's corrosion resistance is extremely outstanding. It can withstand strong corrosive media such as aqua regia and fluorides, and has stable performance under high temperature and pressure working conditions. Its applicable scenarios include fluoride synthesis reactors and radioactive waste liquid treatment equipment in nuclear chemical industry. The high-purity tantalum products produced by Baoji Yunjie have no corrosion traces after 24 hours in 50% aqua regia at 200℃, and the deformation amount is ≤0.1% under 15MPa high pressure.
5. Molybdenum: "Performance Backbone" in Molten Salt and Catalytic Scenarios
Molybdenum has excellent molten salt corrosion resistance and outstanding catalytic performance. Specific applications include inner walls of molten salt heat storage tanks for solar thermal power generation and molybdenum-based catalyst carriers. The high-purity molybdenum parts produced by Baoji Yunjie have a corrosion rate of ≤0.03mm after soaking in molten salt at 565℃ for 1000 hours, and the catalytic reaction selectivity is ≥90%, meeting the dual requirements of chemical processes.
Core Advantages of the Solution
- Extreme corrosion resistance guarantee: Optimize material composition for different corrosive media. The service life of products is 3-5 times longer than that of traditional materials.
- Working condition adaptability: Customize material thickness and connection method for temperatures up to 500℃ and pressures up to 30MPa.
- Full life cycle service: Provide full-process services from material selection and design to later maintenance.
Note: All the above products support customization of performance parameters and third-party testing (such as mechanical properties, chemical composition, non-destructive testing), and complete material reports and certification documents can be provided.