China Mild steel pipe & Tubing

Mild steel pipes and is one of the low carbon steel pipes with low carbon content and the lesser hardness.

Mild steel contains carbon alloy of 0.16 to 0.29% and is therefore not ductile. The mild steel pipes are coated with copper and thus resist corrosion however, extra care has to be taken to keep away from rusting.

The hardness of the mild steel could be increased through carburizing in which the steel is heated below melting point in presence of another material and again by quenching, the outer surface of the carbon becomes harder maintaining a soft core. The most frequently used mild steel are - A-106 & A-S3. A-106 comes under both A & B grade and is used for cold or close coiling.

Availability and usages:

Mild steel is available in a variety of structural shapes that are easily welded into pipe, tube, tubing etc. Mild steel pipes and tubing are easy to fabricate, readily available, and relatively cheaper than other metals. The life expectancy of such steel could go up to 100 years if it is well protected. Mild Steel pipes and tubing are used for structural purpose and mechanical & general engineering purpose. It is also used for drinking water supply and the use of chlorination and sodium silicate inhibit corrosion in mild steel pipes.

Pipes made by mild steel contain carbon contents of less than 0.18%, and is therefore not hardened because of low carbon content. Mild steel is available in a variety of structural shapes that are easily welded into pipe, tube, tubing etc. Mild steel pipes and tubes are easy to fabricate, readily available, and cost less than most other metals. In well protected environments, the life expectancy of mild steel pipe is 50 to 100 years.

Generally, these pipes are coated with other metals such as copper, to protect from corrosion. Mild Steel pipes and tubing are used for structural purpose and mechanical & general engineering purpose. It is also used for drinking water supply and the use of chlorination and sodium silicate inhibit corrosion in mild steel pipes. Extra care is always required to keep mild steel pipes from rusting.

DIN/EN steel pipe
GB steel pipes
JIS seamless pipes


Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.


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