Hot Rolled Steel Pipe is widely used in automobile, electric power, petrochemical, ship, aerospace, bearing, pneumatic components, oil cylinder, boiler equipment, medical equipment, fitness equipment, tractor, motorcycle, steel connecting sleeve, oil cylinder tube, machinery manufacturing and other industries.
Standard & Materials
High Temperature Seamless Pipe: ASTM A106 Gr. B/C, API 5L Gr. B, ASTM A53 Gr. B
Heat Exchanger Seamless Tube:ASTM A179
Low Temperature:ASTM A333 Gr. 3,Gr. 4,Gr. 6,Gr. 7,Gr. 8,Gr. 9
Low Temperature: ASTM A334 Gr. 1,Gr. 3,Gr. 6,Gr. 7,Gr. 8
Length: 5.8m-12m, random or fixed, as the clients' requests
End of pipe: P.E /B.E
Hot Rolled Steel Pipe (extrusion seamless steel tube): round billet → heating → perforating → three-roll diagonal rolling, continuous rolling or extrusion → pipe stripping → sizing (or reducing)→ cooling → straightening → hydrostatic test (or flaw detection)→ marking → warehousing
Hot rolling is relative to cold rolling. Cold rolling is rolling performed below the recrystallization temperature, and hot rolling is rolling performed above the recrystallization temperature. It can destroy the casting structure of the steel ingot, refine the grains of the steel, and eliminate...
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