Steel Pipe are used to transport gases or fluids so it is important to know the capacity of the pipe. Here the internal cross-sectional area is important. It’s therefore not surprising that steel pipe are specified by the inside diameter. It is common to identify pipe in inches by using NPS or “Nominal Pipe Size”. The metric equivalent is called DN or “diameter nominal”. The metric designations conform to International Standards Organization usage and apply to all plumbing, natural gas, heating oil, and miscellaneous piping used in buildings. A plumber always knows that the ID on the pipe label is only a *nominal* ID.
Pipe is a hollow tube with round cross section for the conveyance of products. The products include fluids, gas, pellets, powders and more. The word pipe is used as distinguished from tube to apply to tubular products of dimensions commonly used for pipeline and piping systems. In the world of piping, the terms pipe and tube will be used. Pipe is identified as “Nominal Pipe Size” (NPS), with wall thickness defined by “Schedule number” (SCH).
We, At ferropipe deal in two basic steel pipe in accordance with the grades and applications:
Carbon Steel Pipe is strong, ductile, weld able, machinable, reasonably, durable and is nearly always cheaper than pipe made from other materials. If carbon-steel pipe can meet the requirements of pressure, temperature, corrosion resistance and hygiene, it is the natural choice.Iron pipe is made from cast-iron and ductile-iron. The principal uses are for water, gas and sewage lines.
Alloy Steel pipe are used at high temperature and high fatigue application areas.Due to the presence of chrome and molybdenum it is also known as chrome moly steel pipe.Alloy steel pipe are expensive as compared to carbon steel pipe due to addition of alloying element. These pipe are used for high temperature application including pressure vessels, boilers and heat exchangers.
Steel pipe combines high strength and ductility, which allows higher operating pressures, stresses and strains without breaking from water hammer and surge that may occur due to natural man-made disturbances. Steel pipe is preferred because of its lightweight and availability in longer lengths. As such, it can be economically transported longer distances. A key advantage to steel pipe is that it is easy to fabricate, which allows it to be engineered and manufactured into various sizes, shapes and configurations.