3lpe Coated ERW Carbon Steel Pipe

Exteral 3lpe Coated and Internal Epoxy Coated ERW Carbon Steel Pipe

Bangdong Supply ERW ASTM A53 106 Steel Pipe,316L ERW Welded Pipe,Hot Rolled Black Pipe.Cold drawing is a metalworking process where the metal is stretched by using tensile forces at room temperature. In this process desired size of the tube is achieved by drawing it through a die which is smaller than the tube, elongating the length and reducing the diameter of the tube.
Cold drawing process enhances the quality of the tubes with smooth surface finish, precise dimensions and high strength. Machine used for drawing is called a draw bench. Shalco has this machine in various sizes in order to achieve smaller sizes. 

We carry out different cold drawing process at our plant such as:
1) Sink drawing
Sink drawing also known as hollow drawing is the simplest cold drawing procedure. In this process there is no mandrel inside the tube, so the tube is passed through a die of a smaller size and it is worked for a smoother polished surface. Only the outer diameter of the tube is reduced and not affecting the wall thickness to a great extent. During this process the inner surface is not pressurized so it can be further elongated using other cold drawing process.
2) Rod drawing
Rod drawing process reduces the outer diameter and inner wall thickness at the same time. In this process the tube is drawn with a mandrel inside the tube through the die. The hardened mandrel inside the tube when drawn through the die exerts pressure reducing the wall thickness and outer diameter. Size of the tubes depends upon the die and the mandrel.
Seamless pipe is formed by drawing a solid billet over a piercing rod to create the hollow shell. Seamless pipe withstands pressure better than other methods of pipe manufacture.

Size range

Outside diameter 25mm to 720mm
Wall thickness 2.8mm to 40mm
Characteristics and key benefits

We supply through one of the worlds largest diameter seamless pipe manufacturer`s
Wide range of API steel grades and manufacturing standards available
In-line manufacturing process for pipe forming and testing
Fast and cost effective manufacturing method
Typical applications

Oil and gas line pipe
OCTG pipe
Drill casings
Pipes typically used in pipelines for conducting liquid or gas

A312 Tp316l Pipe
316l Stainless Steel Pipe
Stainless Steel Pipe
304l Steel Pipe
A312 Tp304l Steel Pipe
Api 5l X56 Steel Pipe
Api Carbon Seamless Steel Pipe
Api Carbon Steel Pipe