Steel Tube

Steel Tube


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:

Some steel tube are also used in the transport of fluids, even though they are seam welded. These include steel tube for water pipe and welded tube are commonly used in the agricultural industry for manufacturing pivots. Such tube will undergo a process called pressure testing were the tube is sealed at both ends and water is pumped through the tube up to a certain level of pressure. This will quickly indicate if there is a leak or a bad spot in the weld of the circular hollow section tested.

The principal uses for tube are in Heat Exchangers, instrument lines and small interconnections on equipment such as compressors, boilers etc.

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