The yield strength of duplex stainless steel is twice that of austenitic stainless steel, which enables designers to reduce the weight when designing products, and also makes this alloy more competitive than 3 16, 3 17L. This alloy is especially suitable for the temperature range of-50 F/+600 F. For applications beyond this temperature range, this alloy can also be considered, but there are some restrictions, especially when it is applied to welded structures.
1.4462 corresponding brand: 022Cr22Ni5Mo3N
1.4462 is an austenitic-ferritic stainless steel, which is the most widely used duplex stainless steel in the world.
According to the current national standard GB/T 1220-2007, 022Cr22Ni5Mo3N is a new brand, austenitic-ferritic stainless steel.
It is developed on the basis of Swedish SAF2205 steel and is the most widely used duplex stainless steel in the world.
Resistant to the environment containing hydrogen sulfide, carbon dioxide and chloride, cold working and hot forming, with good weldability. It is suitable as a structural material to replace 022cr19ni10 (00cr19ni122cr17ni65438+).
It is used to manufacture pressure-bearing equipment such as oil well pipes, chemical storage tanks, heat exchangers, condensation coolers and so on, which are prone to pitting corrosion and stress corrosion.