Comparison of 317 and 316L Stainless Steel
316 and 317 stainless steel (317 stainless steel performance see below) is a stainless steel containing molybdenum species. Molybdenum content of 317 stainless steel in a little clever in 316 stainless steel. molybdenum in the steel, the steel is superior to total 310 and 304 stainless steel, high temperature conditions, when the sulfuric acid concentration lower than 15% and higher than 85%, 316 Stainless steel with a wide range of uses. 316 stainless steel has good corrosion performance of the chloride, it is usually used in the marine environment.
The maximum carbon content of 316L stainless steel 0.03, can be used can not be annealed after Welding and the need to use the maximum corrosion resistance
Corrosion resistance
Corrosion resistance than 304 stainless steel, in the pulp and paper production process has a good resistance to corrosion. And 316 stainless steel is also resistant to marine erosion and the erosion of the industrial atmosphere.
Heat resistance
Degrees below the break in 1600 and 1700 degrees below the use of continuous use, 316 stainless steel has good resistance to oxidation. Degree in the 800-1575 range, the role of 316 stainless steel is best not continuous, but continuous use of the temperature range of 316 stainless steel outside, the stainless steel has good heat resistance. Resistance of 316L stainless steel, carbide precipitation and better performance than the 316 stainless steel, used the above temperature range.
Heat treatment
Degrees in 1850-2050 within the annealing temperature, and then quickly annealing, and then quickly cooled. 316 stainless steel heat-treatment can not be hardened.
Welding
316 stainless steel has good weldability. All standard welding methods can be used for welding. Welding can be based on use, were used 316Cb, 316L stainless steel or 309Cb welding filler rods or electrodes. For optimum corrosion resistance, stainless steel Welding section 316 requires post-weld annealing. If you are using 316L stainless steel, does not require annealing after Welding.
Typical uses
Pulp and paper equipment heat exchangers, dyeing machines, film processing equipment, piping, exterior building materials used in coastal areas.
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