Duplex 2507 is a super duplex stainless steel with high strength and good corrosion resistance. It has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum and nitrogen levels provide excellent resistance to pitting, crevice and general corrosion. The impact strength is also high. Duplex 2507 is not recommended for applications which require long exposures to temperatures above 600°F (316°C). Both toughness and corrosion resistance can be reduced.