Classification Of Tubing

  Classification of pipe

    1, according to the production method classification

    (1) Seamless pipe-hot rolled pipe, cold rolled pipe, cold-drawn pipe, extrusion pipe, Pipe jacking

    (2) Welded pipe

    (a) According to the process--arc welded pipe, resistance welded pipe (high-frequency, low-frequency), gas welded pipe, furnace welded pipe

    (b) According to weld points--straight seam welded pipe, spiral welded pipe

    2, according to the section shape classification

    (1) Simple section steel pipe-round steel pipe, square steel pipe, oval steel pipe, triangular steel pipe, hexagonal steel pipe, rhombus steel pipe, octagonal steel pipe, semi-circular steel circle, other

    (2) complex cross-section steel pipe--unequal edge hexagonal steel pipe, five-petal plum-shaped steel pipe, double convex steel pipe, double concave steel pipe, melon seed-shaped steel pipe, conical steel pipe, corrugated steel pipe, case steel pipe, other

    3, according to the wall thickness classification-thin-walled steel pipe, thick-walled steel pipe

    4, by the use of classification-pipe, thermal equipment, steel pipe, mechanical industrial steel pipe, petroleum, geological drilling pipe, container pipe, chemical industry, steel pipe, special-purpose steel pipe, other