High strength standard of nm450 wear-resistance with 5000-18000mm length

No matter what kind of wear-resistant steel plate, it is composed of two parts, namely standard of NM450 wear-resistance, carbon steel plate and alloy wear-resistant layer. Under normal conditions, the thickness of the alloy wear-resistant layer of wear-resistant steel plate is 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 meeting the requirements of specified working conditions.

Strip steel is a kind of steel plate with thin thickness, narrow width and long length. Strip steel can be made of common carbon steel, carbon structural steel, spring steel, tool steel, stainless steel, etc. Strip steel has the advantages of high dimensional accuracy, good surface quality, easy processing and material saving. There are many kinds of strip steel, standard of NM450 wear-resistance. Hot rolled steel strip is mainly used for cold-rolled billets, cold-formed steel billets, welded steel pipe billets, manufacture of bicycles and small hardware products.

Special-shaped seamless pipe is the general term of seamless pipe with other cross-section shapes except circular pipe. According to the different shapes and sizes of steel pipe sections, it can be divided into equal wall thickness special-shaped seamless pipe (code D), unequal wall thickness special-shaped seamless pipe (code BD), variable diameter special-shaped seamless pipe (code BJ). standard of NM450 wear-resistance. Special seamless pipe is widely used in all kinds of structural parts, tools and mechanical parts. Compared with the round pipe, the special-shaped pipe has larger inertia moment and section modulus, larger bending and torsion resistance, which can greatly reduce the structure weight and save steel.

General Administration of Customs: China's standard of NM450 wear-resistance and so on steel export in December was 4.684 million tons. According to data released by the General Administration of Customs on Tuesday, China's steel imports in December 2019 were 1.483 million tons, and the total imports in 2019 were 12.304 million tons, down 6.5% from 1316.6 in 2018. China's steel export in December 2019 was 4.684 million tons, and the annual export volume in 2019 was 64.293 million tons, 7.3% less than 69.335 million tons in 2018.