ASTM A671 Pipes and Tubes are carbon steel pipes designed for atmospheric and lower temperature services. These pipes are produced from pressure vessel-quality plate steel, which is either fusion welded or electric fusion welded. The ASTM A671 specification covers several grades, each designed for specific conditions and performance requirements. The main highlight of ASTM A671 is ... https://www.metcoresteel.com/astm-a671-pipes-tubes-manufacturer-exporter-suppliers-stockists.html