SS Tube Applications
Alloy 410 is a martensitic stainless steel that hardens when it is heat treated. Chromium accounts for 12% of its overall chemical composition, giving it the corrosion-resistant properties of stainless steel. Known for its strength, type 410 stainless steel is ideal for petrochemical components that are subjected to repeat abrasion and wear. Alloy 410 exhibits limited corrosion resistivity and as a result, should be used only in environments containing weak or diluted acetic acid, naptha, nitric acid, and sulfuric acid. It performs well in applications where low hydrogen sulfide exists. In its annealed state, 410 is ductile, easily formed, and machinable, but presents limited weldability. A post-weld heat treatment is required to prevent hydrogen stress corrosion cracking. In the petroleum refining industry, Alloy 410 stainless steel is primarily used in the construction of pumps, valve trim, tray valves, and fractionation towers. As industrial processes evolve and change and new challenges present themselves, exciting new applications for stainless steel are being explored in order to make the most of the key benefits offered by this material.
The conditions in which stainless steel is used within petrochemical plants are critical. Treated fluids and extremely high temperatures can be particularly aggressive during operation; and environments where chloride is present, or where induced cracking occurs are key challenges.