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Heat expanded welded steel pipe

2020-03-27 10:41:29   COMMENT:0 HITS:
  The heat expanded welded steel pipe is often referred to as the heat expanded pipe, which has low density but strong contraction. The heat expanded welded steel pipe is often referred to as the heat expanded pipe. The steel pipe with low density but strong contraction (welded steel pipe) can be referred to as the heat expanded pipe for short. It is a kind of finishing rolling process to enlarge the pipe diameter by cross rolling or drawing. In a short period of time, the steel pipe can be thickened to produce non-standard, special type API 5L x70 Spiral Galvanized Welded Steel Pipe with low cost and high production efficiency, which is the development trend in the field of international pipe rolling. Hot expanded seamless steel pipe: GB3087-1999 hot expanded seamless steel pipe (seamless steel pipe): GB / t3091-2000.

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