SA335 Grade P91, ASTM A335 Grade P91 Alloy Steel Seamless Pipes is a chrome moly pipes with a considerable addition of chromium at 9% and 1% molybdenum in the composition. ASTM A335 P91 Pipes enhances the high temperature strength, oxidation resistance and the creep resistance of the material. These are meant for high temperature fluid transfer applications in petrochemical, power generation, natural gas and in oil refinery industries. The SA335 P91 Material range from 3/8 inches to 30 inches in nominal bore size and their lengths vary from 5m to 13m, single random, double random and custom sizes. They are delivered as rolled, cold drawn or in normalizing rolled conditions. The epoxy coating, color coating and 3LPE coatings all add to the corrosion resistance of the material.
ASTM A335 Grade P91 Alloy Steel Seamless Pipes
A335 P91 Welded Pipes
The ASTM A335 Grade P91, ASTM A335 Gr P91 Pipes, A335 P91 Welded Pipes can be seamless, hot rolled or cold drawn. There are schedules ranging from 20 to XXS and heavier upon request. This range of schedules call for different wall thicknesses up to 250mm. The Alloy Steel P91 Chrome moly pipes have a minimum yield strength of 415MPa and a minimum tensile strength of 585MPa. The SA335 P91 Pipes suppliers are required to run tests such as the EN 10216-2, UNS K91560, GOST 550-75, NBR 5603 to provide the necessary certification that governs the dimensions of the pipes in question.