Stainless steel applications and development prospects

Changzhou 2205 stainless steel in terms of variety, specifications, quantity, quality, etc., whether to meet market demand, or with the advanced industrial countries on the comparison of technical level, have a certain gap. Specifically: in terms of the number of products, the general purpose of the production of ordinary stainless steel has been balanced with the overall market demand. The higher requirements of the material, production capacity is insufficient, especially the high requirements of industrial materials, such as high-pressure stainless steel pot tube basic blank; in terms of product specifications, the general purpose of small and medium diameter stainless steel production capacity is greater than the market demand, large diameter, high requirements of stainless steel pipe, the market supply exceeds demand, the gap is large, such as φ219mm or more oversized diameter Stainless Steel Pipe also need to rely on imports to make up for the shortage. Such as super-length (greater than 15m) of the super-long guest, domestic production is also rare, basically rely on imports; in terms of variety, compared with advanced industrial countries, China's stainless steel varieties, high technology content varieties are almost blank, such as duplex steel, Hastelloy, etc., some technical difficulties, high quality requirements of special stainless steel tubes, such as power station boiler heat exchanger tube, fertilizer plant with urea tube, etc., but also mainly Rely on imports, some have good corrosion resistance of duplex stainless steel pipe, domestic production is also rare, basically rely on imports. Adapt to the increasingly widespread application of duplex stainless steel, the domestic should strengthen the popularization of duplex stainless steel welding technology and supporting the development of welding materials.

We should also consider the introduction and absorption, enriching the existing inspection methods and standards to promote the production and ordering of 2205 stainless steel in Changzhou. In addition, vigorously develop the Changzhou 2205 duplex stainless steel industrial and civilian potential markets (such as construction - structures, bridges, concrete with steel; such as manufacturing - containers, storage tanks, chemical carriers, speedboats, tankers; and household facilities - high water tanks, electric water heaters, housing water Steam pipes, etc.), and development, trial, promotion of foreign development and suitable for our national conditions (lack of nickel and chromium) of some new varieties (such as low-nickel saving duplex stainless steel), I believe that China's promotion of 2205 stainless steel has a very broad application prospects.