Stainless steel is a kind of alloy steel that can resist corrosion, mainly composed of iron, chromium, nickel and other elements. Its corrosion resistance is mainly derived from chromium, and when the chromium content exceeds 12%, the corrosion resistance of steel is significantly improved.
      Acid-resistant steel is a kind of stainless steel, especially those that can show excellent corrosion resistance in acid, alkali, salt and other corrosive media.
      According to the performance characteristics and uses of steel, it is divided into nitric acid resistant stainless steel, sulfuric acid resistant stainless steel, pitting stainless steel, stress corrosion resistant stainless steel, high-strength stainless steel, etc. : according to the functional characteristics of steel, it is divided into low-temperature stainless steel, non-magnetic stainless steel, easy cutting stainless steel, super-plastic stainless steel, etc.
      316 stainless steel has good weld-ability. All standard welding methods can be used for welding. When welding, 316Cb, 316L or 309Cb stainless steel filler rods or welding rods can be used according to the use. The welded section of 316 stainless steel needs to be annealed after welding. If 316L stainless steel is used, post-welding annealing is not required.