Type 316 is an austenitic chromium-nickel stainless steel containingmolybdenum. This addition increasesgeneral corrosion resistance, improvesresistance to pitting from chloride ionsolutions, and provides increased strength at elevated temperatures. Properties are similar to those of Type 304except that this alloy is some what stronger at elevated temperatures.Corrosion resistance is improved, particularly against sulfuric, hydrochloric,acetic, formic and tartaric acids; acid sulfates and alkaline chlorides. 316Ti is a titanium stabilized version of 316. Resistance to sensitization is achieved in type 316Ti with titanium additions to stabilize the structure against chromium carbide precipitation, which is the source of sensitization. This sensitization is achieved by an intermediate temperature heat treatment, during which the titanium reacts with carbon to form titanium carbides. This significantly reduces susceptibility to sensitization in service by limiting the formation of chromium carbides. Thus, the alloy can be used for extended periods at elevated temperatures without compromising its corrossion resistance. Like types 316L and 316H, 316Ti alloys also offers excellent resistance to general corrosion and pitting / crevice corrosion.
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