Production Overview
Production Overview

What We Do

Seamless pipe manufacturing
Seamless pipe is Strongest amongst all pipes type as it has a Homogeneous structure throughout pipe length.

Seamless pipes are manufactured in a verity of size and schedule. However, there is a Restriction on the manufacturing of large diameter pipe. Seamless pipes are widely used in the manufacturing of pipe fittings such as bends, elbows, and tees.


Welded Pipe Manufacturing Process 

Welded Pipes are manufactured from Plate or continues Coil or strips. To manufacture welded pipe, first plate or coil is rolled in the circular section with the help of plate bending machine or by a roller in the case of continues process. Once the circular section is rolled from the plate, the pipe can be welded with or without filler material. Welded pipe can be manufactured in large size without any upper restriction. Welded pipe with filler material can be used in the manufacturing of long radius bends and elbow. Welded pipes are cheaper with compared to the seamless pipe and also Weak due to the weld。

There are different welding methods used to weld the pipe.

ERW- Electric Resistance Welding
EFW- Electric Fusion Welding
HFW- High-frequency welding
SAW- Submerged Arc Welding (Long seam & Spiral Seam)

Know more about this product price, catalogue, mill test certificate,  please inquiry to: sales@nan-steel.com



Carbon steel pipe plant was established


Square tube mill put into use


Production base in Shandong & Tianji


Coating equipment introduction


Pipe fittings factory