ASTM A312 / A213 / A249 TP 254 SMO are specifications for high-alloy stainless steel pipes and tubes known for their excellent corrosion resistance, especially in chloride-rich environments such as seawater. These pipes are available in seamless, welded, and ERW types, with sizes from 6 to 630mm and wall thicknesses from 0.3 to 50mm. The alloy contains high levels of molybdenum, nitr... https://www.kencotubes.com/astm-a312-a213-a249-tp-254-smo-stainless-steel-pipes-tubes-supplier-exporter.html