316 stainless steel is a kind of austenitic stainless steel, the corrosion resistance and high temperature strength have been greatly improved by adding Mo element, the high temperature resistance can reach 1200-1300 degrees, it can be used under harsh conditions.
The main usage are pulp and paper equipment heat exchangers, dyeing equipment, film washing equipment, pipelines, building materials for coastal areas. In 2013, it was also applied in the field of solenoid valve, mainly used in shell, clamp, sphere, valve body, valve seat, nut, valve stem and so on.
Chemical Composition /%
The corrosion resistance of 316 stainless steel is better than that of 304 stainless steel. In pulp and paper production process has good corrosion resistance. And 316 stainless steel also resistant to Marine and corrosive industrial atmosphere erosion
In intermittent use below 871°C(1600°F) and continuous use above 927 °C(1700°F), 316 stainless steel has good oxidation resistance. In the range of 427° c-857 °C(800° f-1575 °F), it is best not to use 316 stainless steel continuously, but when 316 stainless steel is used continuously outside the temperature range, the stainless steel has good heat resistance The carbide resistance of 316L stainless steel is better than that of 316 stainless steel.
Annealing is performed at temperatures ranging from 850 °C to 1050°C, followed by rapid annealing and rapid cooling.316 stainless steel cannot be hardened by heat treatment.
316 stainless steel has good welding performance. All standard welding methods are available. According to the purpose, 316Cb, 316L or 309Cb stainless steel filler bar or electrode can be used for welding. In order to obtain the best corrosion resistance, the welding section of 316 stainless steel needs to be annealed after welding. If 316L stainless steel is used, it does not need to be annealed after welding.