welded seamless wrought steel pipe introduction

The welded wrought steel pipe production involves moving steel strips through rollers formed into a tubular shape. Then these steel strips pass through welding device to fuses them into a single pipe. While seamless wrought steel pipe manufacturing starts as s solid piece of heated steel. The steel billet is forced through a form to be shaped into a hollow tube, and then the pipe is machined into appropriate dimensions.



Welded seamless wrought steel pipe usually goes through a machine for straightening. Threads are machined into the ends of smaller diameter pipes to allow them connect together. Various kinds of protective coatings placed over the steel surface such as oil, paint, zinc and other kinds of material according to the usage of the pipe to prevent rusting.

The welded seamless wrought steel pipe confirms to the standardization of dimensions ASME B36.10M-2004 standards for high or low temperature. The wrought pipe different from steel tube, is used for pipeline and piping system with tubular products of dimensions. The pipe DN300 has outside diameters numerically larger than corresponding sizes. Oppositely, the tube outside diameter is numerically identical to the size number for all sizes.

The pipe size is identified by the nominal pipe size. So the manufacturers of seamless wrought steel pipe are based on the standardized outside diameter. The outside diameter is originally selected so that the pipes would have an inside diameter approximately equal to the normal size with a standard OD and wall thickness. Though there is little relation between standard thickness OD and nominal size, the pipe manufacturer proceeds on the basis of an OD corresponding to the nominal size.