ASTM A53 Grade B Pipes are seamless or welded carbon steel pipes suitable for high-temperature and high-pressure service. They conform to the ASTM A53 specification, a widely recognized standard by the American Society for Testing and Materials. These pipes are categorized into Type E (Electric-Resistance Welded), Type S (Seamless), and Type F (Furnace-Butt Welded), each serving diffe... https://www.carbonsteelspipe.com/carbon-steel-astm-a53-grades-b-pipes-manufacturers-exporters-suppliers-stockists.html