Carbon seamless steel pipe is divided into hot-rolled (extruded) seamless steel pipes and cold-drawn (rolled) seamless steel pipes due to their different manufacturing processes. Cold drawn (rolled) tubes are divided into round tubes and shaped tubes.
Standard&Material: API 5LB, ASTM A53 Gr A/B, ASTM A106 Gr B/C, ASTMA179, ASTM A192, ASTM ATP G370, ASTM STS370, ASTM STPT 370, ASTM A213T11/12/22, ASTM A210A1/C
OD:21.3 - 914.4mm
WT:2.24 - 33.32 mm
Seamless steel pipe has a hollow cross-section and no seams around. making ring parts with steel pipes can improve material utilization, simplify manufacturing processes, save materials and processing hours.
Cold drawn (rolled) carbon steel seamless steel pipe: round tube billet → heating → perforation → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → billet → heat treatment → straightening →Hydraulic test (flaw detection) →Marking →Storage
Carbon seamless steel pipe for transporting fluids, such as pipes for transporting oil, natural gas, coal gas, water and certain solid materials etc. are used for manufacturing structural parts and mechanical parts. fences, greenhouses, door pipes, greenhouses; low-pressure liquid, water, gas, oil pipes; suitable for indoor and outdoor construction; widely used in scaffolding construction, cheap and convenient.
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