Introduction to practical knowledge of pipes
Aug 25, 2021
1. Classification of pipes
1. Classified by production method
(1) Seamless pipe-hot rolled pipe, cold rolled pipe, cold drawn pipe, extruded 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 the weld seam-straight seam welded pipe, spiral welded pipe
2. Classified by section shape
(1) Simple section steel pipes-round steel pipes, square steel pipes, oval steel pipes, triangular steel pipes, hexagonal steel pipes, diamond steel pipes, octagonal steel pipes, semi-circular steel pipes, etc.
(2) Complicated section steel pipes-unequal hexagonal steel pipes, five-petal plum-shaped steel pipes, double convex steel pipes, double concave steel pipes, melon seed steel pipes, conical steel pipes, corrugated steel pipes, case steel pipes, etc.
3. Classification by wall thickness-thin-walled steel pipe, thick-walled steel pipe
4. Classification by use-steel pipes for pipelines, steel pipes for thermal equipment, steel pipes for machinery industry, steel pipes for petroleum, geological drilling, container steel pipes, steel pipes for chemical industry, steel pipes for special purposes, others
