Specialty stainless steels are steels based on common stainless steels (such as 304 and 316), with increased alloying elements (such as nickel, molybdenum, titanium, niobium) or modified microstructures (such as duplex steels and precipitation-hardening steels), enabling them to maintain stable performance under extreme conditions such as high temperature, strong corrosion, and high pressure. Common types include duplex stainless steels, super austenitic stainless steels, precipitation-hardening stainless steels, and heat-resistant stainless steels.


