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Most steel is processed by press working of steel, a steel to be processed (billet, ingot, etc.) is plastically deformed. According to the steel with steel processing temperature is not cold and hot working with two kinds of points. Thick wall seamless steel tube material is the main processing methods:

Rolling: The steel metal blank by a pair of gap (of various shapes) rotating rolls, rolls due to compression of the material cross-section is reduced, the length of the increased pressure processing method, which is producing the most common mode of production of steel, mainly used to produce steel profiles, sheet, pipe. Sub-rolled, hot-rolled.

Forged steel: the use of a reciprocating hammer impact force or pressure to press the blank, we changed to the desired shape and size as a press molding method. Generally divided into free forging and forging, commonly used for the production of large profiles, open-foot section of steel billet inch larger materials.

Pullout Steel: is already rolled metal blanks (type, pipe, products, etc.) through the die holes to pull aside to reduce the length of the section of the increased processing methods are mostly used as a cold.

Pressure: the metal is placed in a sealed steel squeeze reduction, pressure end of the metal from the extrusion die orifice to obtain a predetermined shape and size with the same finished processing method used for the production of non-ferrous steel sheet.