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Large-diameter seamless steel pipe, the main production process is hot-rolled large-diameter seamless steel pipe and hot-expanded caliber seamless steel pipe, a steel pipe with a relatively low density but strong shrinkage that expands the diameter of the pipe by cross-rolling or drawing. Finishing process. It is a development trend in the international pipe rolling field to increase the thickness of the steel pipe in a relatively short period of time, with low cost and high production efficiency.
Due to their different manufacturing processes, seamless steel pipes are divided into two types: hot-rolled (extruded) seamless steel pipes and cold-drawn (rolled) seamless steel pipes. Cold drawn (rolled) tubes are divided into two types: round tubes and special-shaped tubes.
|Large diameter seamless steel pipe|
Used on high-pressure and high-temperature pipelines and equipment
1-24M or as request
API 5CT,ASTM A500,ASTM A501,API 5L,ASTM A106,ASTM A53