ASTM A269/ASME SA269 stainless steel tube covers the nominal wall thickness grades of stainless steel pipe specified in the standard for general corrosion resistance and low or high-temperature applications. Usually applied as boiler, superheater, and heat-exchanger tubes.
ASTM A269/ASME SA269 stainless steel pipe has good plasticity and low strength and hardness. At the same time, it has a certain toughness, but it is not ferromagnetic.
ASTM A269/ASME SA269 is not only resistant to oxidative acid medium corrosion, but also resistant to sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, etc. if it contains Mo, Cu, and other elements. If the carbon content of this type of steel is less than 0.03% or contains Ti and Ni, its resistance to intergranular corrosion can be significantly improved.