In the chemical industry, equipment often operates in complex environments such as high temperatures, high pressures, low temperatures, corrosive media, etc. Therefore, it is necessary to have steel that can withstand high temperatures, high pressures, low temperatures and various corrosive media, such as structural or device steel resistant to sulfur or hydrogen sulfide gas, steel resistant to seawater corrosion, and low-temperature steel. Also, steel that can have higher corrosion resistance to various acids, bases or salt bath solutions when in direct contact is required. In the design process, how to select steel that meets technical requirements and is economically viable is of great significance.
Petrochemical equipment manufacturing: The main requirements of the users are that the material is 1Cr18Ni9Ti, with a specification of φ108mm to φ325mm stainless steel seamless pipe. It is mainly used for pressure fluid transportation pipelines, and the pipe billets are mainly imported and supplemented by domestic products.
Dye chemical equipment manufacturing: The main requirements of the users are: materials such as 304, 316, 316L, 310S from the 300 series, with thickness ranging from 0.7mm to 3.0mm for cold-rolled stainless steel sheets and thicknesses of 4mm, 5mm, 6mm, 8mm for hot-rolled stainless steel plates; materials 1Cr18Ni9Ti, with specifications of φ25mm to φ80mm for stainless steel seamless pipes; related stainless steel fasteners and plumbing components. The above materials are mainly used for atmospheric pressure fluid transportation pipelines and various tanks and vats.
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