What is the meaning of seamless pipe?

Seamless Pipe. Tubular product made without a welded seam, manufactured in a hot-forming process using an extrusion or drawing process that can be followed by cold sizing or cold finishing to produce the desired shape, dimensions and properties.
Seamless pipe definition
An extruded seamless tube having certain standardized sizes of outside diameter and wall thickness, commonly designated by nominal pipe sizes and American National Standards Institute’s schedule numbers.
Seamless tubing definition
Tubing manufactured with no visible seams.
Seamless tubing is produced via extrusion or rotary piercing.
NOTE: Typically manufactured in a hot forming process by extrusion or drawing which can be followed by cold sizing or finishing to the desired shape, dimensions and properties.
Seamless Pipe
Wrought steel tubular product made without a welded seam.
NOTE: Seamless pipe is manufactured by hot-working steel and, if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.
Seamless Pipe
Wrought steel tubular product made without a weld seam.
Seamless Pipe
Tubular product made without a welded seam, manufactured in a hot-forming process using an extrusion or drawing process that can be followed by cold sizing or cold finishing to produce the desired shape, dimensions and properties.
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