Classified by Production Methods
1. Seamless Steel Pipe- hot rolled seamless steel pipe, cold rolled seamless steel pipe, cold drawn seamless steel pipe
2. Welded Steel Pipe- longitudinal welded pipe, spiral welded pipe, electric resistance welded pipe
Classified by Cross-sectional Shape
1. Simple section steel pipe- round carbon steel pipe, square carbon steel pipe,rectangular carbon steel pipe, oval carbon steel pipe etc.
2. Complex section steel pipe- hexagonal carbon steel pipe with unequal edge, five plum shaped carbon steel pipe, double convex carbon steel pipe, double concave carbon steel pipe etc.
Classified by the Application
Carbon steel pipe can be used for thermal equipment, machinery industry pipe, oil line pipe, geological drilling steel pipe, container steel pipe, chemical industry steel pipe, and other special purpose steel pipe.
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