Carbon steel pipe is a type of steel that uses carbon in its composition to make the steel stronger, durable and corrosion resistant. The applications that require low cost yet corrosion resistant and stronger steel use the Carbon steel pipe. There are different forms, shapes and grades of this material. The pipes come in different grades to cater different mechanical properties. The two main grades are grade A and grade B. Grade A pipes have a minimum yield strength of 30000 psi. They have a minimum tensile strength of 48000psi. Their grading types include A53, A523, API 5L and PSL1. The grade B pipes have the minimum yield strength of 35000psi, a minimum tensile strength of 60000psi and are stronger than grade A pipes.
The grades and standards give an idea to the engineer about the qualities of the pipe so that the correct grade could be chosen. If the grading is not correctly understood, it might cost excessive due to the purchase of pipes with very high mechanical properties which are not needed for all applications. For example, the mechanical properties needed for an aerospace engineering application are not needed in a domestic water pipe line.
Carbon steel pipe is produced either in ERW or seamless conditions. The carbon steel ERW pipe is preferred where welding is possible and needed over the seamless pipes. The A672 Pipe is sold at affordable prices. This makes it suitable for applications that require electric fusion welded steel. And the usages are often in high pressure containment applications.