When iron is mixed with nickel and chromium, we get stainless steel, which is hard and does not rust. Steel can also be galvanized. Galvanized steel is more preferred from anticorrosion point of view.

The wall thickness of the seamless pipe is made up of the Schedule series (40, 60, 80, 120) and is connected to the weight series (STD, XS, XXS).

Steel pipes are made by two different processes. First, raw steel is converted into a more workable form. Next, the pipe is formed on a continuous or semicontinuous production line. Finally, the pipe is cut and modified to meet the customer's needs.

Black and galvanized steel pipes are both made of steel, but galvanized pipes have a zinc coating while black pipes do not. Therefore, galvanized pipes are more expensive and more durable.

EN 10219-Cold formed welded structural sections of non-alloy and fine grain steels.

JIS G3454-Carbon steel pipes for pressure service.