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Production process and process flow of welded steel pipe

2018-10-25 10:07:12   COMMENT:0 HITS:
  The longitudinal welded steel pipe has the advantages of simple production process, high production efficiency, low cost and rapid development. The strength of ASTM A252 Carbon Welded Steel Pipe is generally higher than that of straight seam welded steel pipe. It can be produced with narrow blank with larger pipe diameter. It can also be produced with the same width of blank with different pipe diameter. However, compared with the straight seam pipe of the same length, the weld length is increased by 30~100% and the production speed is low.

  Large diameter or thick welded steel pipe, generally made of steel billet directly, and small welded steel pipe thin-walled welded steel pipe only needs to be directly welded through the steel strip. Then, after a simple polishing, the wire will be ready.

  The process of welded steel pipe

  Raw materials uncoiling-leveling-end shearing and welding-looper-forming-welding-internal and external bead removal-pre-calibration-induction heat treatment-sizing and straightening-eddy current testing-cutting-hydraulic inspection-pickling-final inspection (strict control) - packaging-shipment.

  The longitudinal welded steel pipe has the advantages of simple production process, high production efficiency, low cost and rapid development. The strength of spiral welded steel pipe is generally higher than that of straight seam welded steel pipe. It can be produced with narrow blank with larger pipe diameter. It can also be produced with the same width of blank with different pipe diameter. However, compared with the straight seam pipe of the same length, the weld length is increased by 30~100% and the production speed is low.

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