1 ．Stainless steel in various；1960 – 1999 about 40 years, stainless steel production in Western countries from 2.15 million tons soared to 17.28 million tons, an increase of about 8 times, the average annual growth rate of about 5.5%. Stainless steel is mainly used in the kitchen, home appliances, transportation, construction, civil engineering fields. In the kitchen appliances are mainly sinks and electrical and gas water heaters, home appliances are mainly automatic washing machine drum. From the point of view of energy saving and recycling and other environmental protection, the demand for stainless steel is expected to further expand.
In the field of transportation, there are mainly railway vehicles and exhaust systems for automobiles, stainless steel for exhaust systems in each vehicle is about 20 -30kg, the world’s annual demand of about 1 million tons, which is the largest application area of stainless steel.
In the field of construction, the recent sharp increase in demand, such as: Singapore subway station guards, the use of about 5,000 tons of stainless steel exterior decorative materials. Japan, for example, after 1980, stainless steel for the construction industry has grown by about four times, mainly used as roofing, building interior and exterior decoration and structural materials. In the 80s, in the coastal areas of Japan, the use of 304-type unpainted material as roofing materials, from rust considerations, gradually changed to the use of painted stainless steel. In the 1990s, the development of high corrosion resistance of more than 20% high Cr ferritic stainless steel, is used as a roofing material, while the development of a variety of surface finishing technology for aesthetic purposes.Stainless steel in various
In the field of civil engineering, the dam suction tower in Japan uses stainless steel. Cold areas in Europe and the United States, to prevent the freezing of highways and bridges need to spread salt, which accelerates the corrosion of steel, so the use of stainless steel reinforcement. In North America, the road in the last 3 years, about 40 places using stainless steel reinforcement, the use of 200-1000 tons per place, the future of stainless steel in this area of the market will make a difference.Stainless steel in various
Stainless steel in various
2 ． The key to the future expansion of stainless steel applications is the popularity of environmental protection, long life and IT.
With regard to environmental protection, first of all, from the viewpoint of atmospheric environmental protection, high-temperature waste incineration equipment used to suppress dioxins, LNG power generation equipment and efficient power generation equipment using coal heat-resistant, high-temperature corrosion-resistant stainless steel demand will expand. It is also estimated that in the early 21st century will be put into practical application of the fuel cell car battery housing will also use stainless steel. From the viewpoint of water quality and environmental protection, in water supply and drainage treatment devices, with excellent corrosion resistance of stainless steel will also expand demand.
With regard to long life, in Europe there are bridges, highways, tunnels and other facilities, the application of stainless steel is increasing, and it is expected that this trend will spread throughout the world. There is also the Japanese general residential building life is particularly short for 20-30 years, waste material disposal has become a major problem. Recently, the life of the building to reach 100 years as the goal began to appear, so that the demand for materials with excellent durability will grow. From the viewpoint of global environmental protection, it is necessary to explore ways to reduce maintenance costs from the design stage when new concepts are introduced, while reducing civil engineering and construction waste materials for long life.Stainless steel in various
Stainless steel in various
Regarding the popularity of IT, in the process of IT development and popularization, functional materials play a big role in the hardware of the equipment, and there is a great demand for high precision and high functional materials. For example, in cell phones and microcomputer components, the flexible application of stainless steel, such as high strength, elasticity and non-magnetic properties, making the expansion of stainless steel applications. There are also in the semiconductor and a variety of substrate manufacturing equipment, with good cleanliness and durability of stainless steel plays an important role.
Stainless steel has a variety of other metals do not have excellent properties, is a material with excellent durability and recyclability, the future corresponding to the changing times, stainless steel will be widely used in a variety of fields.