Dual Phase Steel
Duplex stainless steel refers to both the structure has two microstructure of austenite and ferrite stainless steel. Duplex steel, also known as complex phase steel. Generally ferrite and austenite phase organizations called duplex stainless steel, ferritic and martensitic steels organization called duplex steel composition. Duplex steels are low carbon steel or low alloy high strength steel rolling after heat treatment or control access to the critical zone.
Dual-phase steel used in the manufacture of cold red, deep drawing forming complex member, also used as steel, chain, cold drawn steel wire, prestressed steel and so on. Such steel has high strength and high ductility good fit, has become a high strength, good formability new stamping steel, used successfully in the automotive industry.
Duplex steels generally refers to martensite (bainite) plus organization ferrite matrix. An island martensite was distributed between ferrite grain namely: 10% to 20% martensite and ferrite tissue. This steel has a low yield strength, elongation and shape hardening rate and other characteristics conducive to drawing molding can improve the strength of hardened by cold working and also has good ductility and toughness. Stainless steel and acid are generally collectively steel. Resistant stainless steel refers to the atmosphere, water vapor and other weak medium corrosion of steel, and acid-resistant steel refers to acid, alkali, salt and other chemical etching medium corrosion of steel.