Wuxi 2205 Stainless Steel
At present, with the development of the chemical industry in China, the application of Wuxi 2205 stainless steel is becoming more and more extensive. Wuxi 2205 stainless steel is growing at a rate of 10% every year. It also has a great future in petroleum, urea, and other industries. The outstanding performance of Wuxi 2205 stainless steel is its high yield strength, stress corrosion resistance, good weldability, and low sensitivity to cold and hot welding cracks.
In Japan, austenitic and ferritic stainless steel welded pipes account for 54% of the petrochemical industry’s piping system. While my country’s stainless steel welded pipe is mainly used in the decorative field, the corrosion-resistant welded pipe used in the petrochemical field is basically a blank.
Wuxi 2205 stainless steel has a certain gap in terms of variety, specifications, quantity, quality, etc., whether in terms of meeting market demand or comparing with the technological level of advanced industrial countries. Specifically: In terms of the number of products, the output of general-purpose ordinary stainless steel has been balanced with the overall market demand.
However, the production capacity is insufficient for high-demand materials, especially high-demand industrial materials, such as high-pressure stainless steel boiler tubes, etc. Basically blank; in terms of product specifications, the production capacity of general-purpose small and medium-diameter stainless steel is greater than market demand, and large-diameter stainless steel, High-demand stainless steel pipes are in short supply in the market, and the gap is large. For example, extra large-diameter stainless steel pipes above φ219mm need to be imported to make up for the shortcomings.
Another example is the ultra-long (greater than 15m) ultra-long passenger, which is rarely produced in China and basically depends on imports; in terms of varieties, compared with advanced industrial countries, my country has fewer varieties of stainless steel, and there are almost no high-tech varieties, such as Duplex steel, Hastelloy, etc., some special stainless steel pipes with high technical difficulty and high-quality requirements, such as heat exchanger pipes for power station boilers, urea pipes for fertilizer plants, etc., are mainly imported, and some have good corrosion resistance.
Duplex stainless steel pipes are rarely produced in China and basically rely on imports. To adapt to the increasingly widespread application of duplex stainless steel, domestic development of duplex stainless steel welding technology and supporting welding materials should be strengthened.
We should also consider introducing and absorbing, and fulfilling existing inspection methods and standards, so as to promote the production and ordering of Wuxi 2205 stainless steel. In addition, vigorously develop the potential markets for industrial and civil use of Wuxi 2205 duplex stainless steel (such as construction industry-steel bars for structures, bridges, and concrete; such as manufacturing industry-containers, storage tanks, chemical tankers, speedboats, tank trucks;
and Such as household facilities-high-level water tanks, electric water heaters, housing water vapor piping, etc.), and develop, test, and promote some new varieties developed abroad that are suitable for my country’s national conditions (lack of nickel and less chromium) (such as low-nickel-saving duplex stainless steel), It is believed that China’s promotion of 2205 stainless steel has very broad application prospects.