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Some of the common sense about seamless steel tube

Seamless steel tube is a kind of round, square and rectangular steel which has hollow section with no surrounding juncture. Seamless steel tube is manufactured with steel ingot or solid tube by perforation to make capillary and then hot or cold roll or cold draw. Seamless steel tube has hollow section, and is mainly used for transportation of liquid. compared with solid steel such as round steel, steel pipe is light with the same flexural wrest resistant strength, which is economical section steel, and widely used in the manufacturing of structural and mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame and steel scaffolding in construction.

Hot-rolled steel seamless pipe: hot-rolled is concerned, relative to the cold rolling, which is below recrystallization temperature, while the hot rolling is above recrystallization temperature .


se7licom 2012-12-10 3:36:33 回复该留言
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