The Difference Between 316 And 316L Ss Steel Material

The difference between 316 and 316L stainless steel materials

1.Corrosion resistance

The corrosion resistance is better than that of 304 stainless steel, and it has good corrosion resistance during pulp and paper making operations. Moreover, 316 stainless steel is also resistant to corrosion from the ocean and corrosive industrial atmosphere. Heat resistance: 316 stainless steel has good oxidation resistance in intermittent use below 1600 degrees and continuous use below 1700 degrees. Do not use 316 stainless steel continuously within the range of 800-1575 degrees. However, when 316 stainless steel is used continuously outside this temperature range, the stainless steel has good heat resistance. The resistance to carbide precipitation of 316L stainless steel is better than that of 316 stainless steel, and it can be used in the above temperature range.

2.heat treatment

Annealing is performed in the temperature range of 1850-2050 degrees, followed by rapid annealing and then rapid cooling. 316 stainless steel cannot be hardened by heat treatment.

3.welding

316 stainless steel has good welding properties. Welding can be carried out using all standard welding methods. When welding, 316Cb, 316L or 309Cb stainless steel filler rods or welding rods can be used for welding according to the purpose. In order to obtain good corrosion resistance, the welded section of 316 stainless steel needs to be annealed after welding. If 316L stainless steel is used, post-weld annealing is not required.