In the past ten years, the consumption of stainless steel for automobiles in Japan has increased from an average of 10 kilograms to 30 kilograms, and the United States has exceeded 40 kilograms. Stainless steel is also widely used in public transportation vehicles such as buses, subways, and high-speed railway vehicles. China's home appliance industry is a large potential market for the stainless steel application industry. In addition, the demand for stainless steel in the water industry, construction and structure industry, environmental protection industry, and industrial facilities will also increase year by year.

Vehicle/Automotive Industry: This is currently the fastest growing stainless steel application field. The use of high-strength stainless steel to manufacture the car body structure can greatly reduce the vehicle's own weight and increase the strength of the car body structure. Using stainless steel as the vehicle panel and decorative parts can reduce maintenance costs. In addition, stainless steel is also used in the exhaust system of automobiles because of its resistance to chloride ion corrosion and heat resistance. Now, Japan, the United States, Sweden and other countries have used a large number of stainless steel vehicles. Japan began to promote it in the 1980s, and currently its stainless steel train cars have reached 60%. The car industry is the development focus of stainless steel applications. The application range of stainless steel is constantly expanding.

Water industry: People have paid more and more attention to the problem of water pollution during its storage and transportation. A lot of practice has proved that stainless steel is the best material for water industry such as water preparation, storage, transportation, purification, regeneration, and desalination. advantages of stainless steel are: corrosion resistance, earthquake resistance, water saving, sanitation (no rust and copper green), light weight (1/3 reduction), less maintenance, long life (40 years of use), life cycle cost (LCC ) Low, green and environmentally friendly materials that can be recycled and reused. According to reports, at present, the pipe stainless steel in Tokyo area of Japan has reached 76%, and the pipe leakage rate has dropped from 14.7% to the current 7.5%. After the earthquake in Osaka, Japan, the stainless steel water storage tank was intact. Recently, Japan has developed a bellows joint, which reduces the construction cost of stainless steel water pipelines by 20%, the total cost by 3%, and the maintenance cost by 3/4. From this point of view, advantages of stainless steel is very prominent.

Construction industry: It is one of the earliest applications of stainless steel. In terms of architectural decoration, at present, stainless steel is mainly used for exterior walls, interior and exterior columns of high-rise buildings, handrails, floors, elevator siding, doors and windows, curtain walls and other interior and exterior decoration and components. The surface treatment, coloring, and plating of the stainless steel plate solves the problem of easy fingerprints after touching, and further expands the application range of stainless steel. Japan has developed a variety of stainless steel roofing materials, such as high and medium chromium ferrite and various coated plates with better corrosion resistance. The super-clean brushed surface stainless steel plate developed by Sweden and the UGITOP surface plate developed by Ugine of France provide new choices for the construction industry.

Household appliance industry: In the household appliance industry, the large amount of stainless steel is the inner tube of automatic washing machine, the inner tube of water heater, the inner and outer shell of microwave oven, and the inner lining of refrigerator, and ferritic stainless steel is mostly used. The proportion of stainless steel for household appliances in Western Europe is relatively large, and it is generally used less in Asia except Japan, which is close to European standards. In 1999, the consumption of ferritic and martensitic stainless steel in Japan's home appliance industry reached 28%, and austenite accounted for 12%. my country's microwave ovens, refrigerators, air conditioners, TVs, etc. are already competitive export products in the world, and the domestic appliance industry is a potential large market for stainless steel applications. It is estimated that in the next 5-10 years, the demand for stainless steel in my country's home appliance industry will reach 100,000-150,000 tons. Advantages of stainless steel is very clear here.

Stainless steel application industry has also expanded to the environmental protection industry: industrial waste gas, garbage and sewage treatment devices need to be made of stainless steel. In the flue gas desulfurization process, in order to resist the corrosion of sulfur dioxide, chloride ions, and iron ions, duplex stainless steel and high-grade austenitic stainless steel should be used in absorption towers, coolers, pumps, valves, flues, etc. Waste incinerators, waste water treatment facilities and other facilities need to be made of high-performance stainless steel materials.