Inquiries : 3 - 2018-8-6 17:37:14
316 and 317 stainless steels (the properties of 317 stainless steels see below) are molybdenum containing stainless steels. The molybdenum content of 317 stainless steel is slightly higher than 316 stainless steel. Due to molybdenum in steel, the total performance of this steel is better than 310 and 304 stainless steel. At high temperature, when the concentration of sulfuric acid is lower than 15% and higher than 85%, this steel has a wide range of applications. The 316 stainless steel also has good chloride erosion properties, so it is commonly used in the marine environment. The maximum carbon content of 316L stainless steel is 0.03, which can be used in the applications which can not be annealed after welding and require maximum corrosion resistance.
Corrosion resistance is better than 304 stainless steel. It has good corrosion resistance in pulp and paper making process. And 316 stainless steel is also resistant to marine and erosive industrial atmospheric erosion.
Discontinuous use of stainless steel with heat resistance below 1600 degrees and continuous use below 1700 degrees has good oxidation resistance. In the range of 800-1575 degrees, it is best not to act continuously on 316 stainless steel, but the stainless steel has good heat resistance when it is used continuously outside this temperature range. The resistance of 316L stainless steel to carbide precipitation is better than 316 stainless steel, which can be used in the above temperature range.
Heat treatment takes place at a temperature range of 1850-2050 degrees and then cools rapidly. 316 stainless steel cannot be hardened by heat treatment.
Welding 316 stainless steel has good weldability. All standard welding methods can be used. According to the purpose of welding, 316Cb, 316L or 309Cb stainless steel stuffing rod or electrode can be used to weld. In order to obtain the best corrosion resistance, the welding section of stainless steel No. 316 needs to be annealed after welding. If 316L stainless steel is used, there is no need for post-weld annealing.
Typical use of paper pulp and paper equipment heat exchangers dyeing equipment film development equipment pipes coastal area building external materials.