Bimetallic thermometer SS304 material and what is the difference between SS316?

For the material of common bimetallic thermometer, we usually choose stainless steel, namely SS304 and SS316 two specifications. Today let's talk about the difference between two types of stainless steel. In the production of bimetal thermometer, now the most commonly used two kinds of SS304 stainless steel, SS316 ( Or corresponding virtue/the mark 1. 4308, 1. 4408). , SS316 and SS304 on the chemical composition of the main difference is that 316 molybdenum ( Mo） , and generally recognized, 316 has better corrosion resistance, more than 304 under the environment of high temperature corrosion resistance. So under the environment of high temperature, generally choose SS316 material components. But if it is under the environment of sulfuric acid, high temperature nor use SS316 again! Because the SS316 material will have a chemical reaction and sulfur. So there is no any one is super corrosion resistance of stainless steel. Actually, the stainless steel is a piece of impurities, but these impurities compared to other more corrosion resistant steel. So the difference between SS316 and SS304 SS304 steel content is high, it is more easier and other physical reaction.