The wear-resistant steel plate is composed of low-carbon steel plate and alloy wear-resistant layer, which is generally 1/3~1/2 of the total thickness. When working, the matrix provides comprehensive properties such as strength, toughness and plasticity to resist external forces, and the alloy wear-resistant layer provides wear-resistant properties that meet the requirements of specified working conditions.
Spiral welded pipe: It is made of low-carbon carbon structural steel or low-alloy structural steel strip rolled into a pipe billet at a certain angle of the spiral line (called forming angle), and then the pipe seam is welded together, which can produce large diameter steel pipe from narrower strip steel. Its specification is expressed by the outer diameter * wall thickness, welded pipe should ensure that the hydraulic test, tensile strength of the weld and cold bending properties to meet the provisions.
Fertilizer special pipe GB6479-2000 refers to seamless steel pipe for high pressure fertilizer equipment. It is mainly used for conveying high temperature and high pressure fluid pipelines on fertilizer equipment. The representative materials are 20, 16Mn, 12CrMo, 12Cr2Mo, etc.
Galvanized iron wire is also divided into hot galvanized wire and cold galvanized wire (electric galvanized wire), which is made of high quality low carbon steel, after drawing, pickling and rust removal, high temperature annealing, hot galvanizing. Cooling and other processes.
316l stainless steel plates are divided into four categories according to their organizational structure.
Austenitic stainless steel plate, martensitic stainless steel plate (including precipitation hardening stainless steel plate).
Ferritic stainless steel plate, and austenitic ferritic duplex stainless steel plate.
The purpose of electro galvanization is to prevent steel objects from being corroded, improve the corrosion resistance and service life of steel, and also increase the decorative appearance of products. Steel will be corroded by weathering, water or soil with the increase of time. In China, the corroded steel accounts for almost one tenth of the total steel volume every year.