Hot rolled technology of equivalent grades of nm450 steel

equivalent grades of NM450 steel, Welded pipe plays an important role in modern industrial production and engineering construction, and has become one of the irreplaceable steel pipe products. Welded pipe is a kind of steel pipe made of rolled plate and steel plate after crimping and forming. Therefore, the diameter of welded pipe can be made very large and can be made according to the requirements of customers. Welded pipes can be used for water diversion, transportation of gas, air, oil and heating steam and other generally lower pressure fluids.

The application of AR400 abrasion resistant steel plate: equivalent grades of NM450 steel, AR400 abrasion resistant steel plate is mainly for wear exposed structures use, such as protective pads, shell walls for prospectors and bulldozers. AR400 abrasion resistant steel plate is also used to fabricate the supporting or reinforcing plate, the cutting plate for truck rollover, mixing elements and conveying elements, chute grooves, machine tools, crushers and shredders, waste briquetting presses, blades, paving abrasives and agricultural machinery.

In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and equivalent grades of NM450 steel pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.

The equivalent grades of NM450 steel prices in the dominant market today is mainly stable. Regarding the transaction situation, some equivalent grades of NM450 steel merchants reported that the current demand is poor, coupled with the shortage of resources in some areas, the overall transaction is not satisfied. For the market outlook, under the support of relatively high costs, high prices are supported, but the equivalent grades of NM450 steel price increase momentum is insufficient due to poor demand. On the whole, it is expected that the equivalent grades of NM450 steel market prices will remain consolidated tomorrow.