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1Cr18SNi9Ti奥氏体不锈钢主要以固溶状态使用,不能通过热处理强化,虽然强度不高,但具有优良的抗腐蚀性能,已广泛用于强度要求不高但能耐腐蚀的产品中,特别是化工产品。随着工业(如航空、造船等)的发展,要求不锈钢不仅耐腐蚀,还应具备较高的强度。半奥氏体沉淀硬化不锈钢虽能得到高强度,但其抗腐蚀性能不如奥氏体型不锈钢。
1Cr18SNi9Ti austenitic stainless steel is mainly used in the state of solid solution, which can not be strengthened by heat treatment. Although its strength is not high, it has excellent corrosion resistance and has been widely used in products with low strength but corrosion resistance, especially in chemical products. With the development of industries (such as aviation, shipbuilding, etc.), it is required that stainless steel not only be corrosion-resistant, but also have higher strength. Although semi-austenite precipitation hardened stainless steel can get high strength, but its corrosion resistance than austenitic stainless steel.