In the production of bimetallic temperature time kind stainless steel are there?

As everybody knows, bimetallic thermometer is mostly adopt stainless steel material, so in time manufacture bimetallic temperature stainless type what? What difference between different kinds of stainless steel material? The following instruments take you know about the stainless steel types. In the production of bimetal thermometer, stainless steel is divided into many types, there are 201 stainless steel, 304 stainless steel, 316 stainless steel, etc. , bimetallic thermometer meter production generally 304 material is qualitative, batch 316 can also be customized. So what's the difference between 201304316? Let's see. 201 stainless steel is the most valuable stainless steel material, the price is cheap, but made of bimetallic thermometer easy to rust. 304 stainless steel is one of the most common and most widely used stainless steel materials, not easy to rust, good quality and price is relatively high; 316 is a kind of imported stainless steel material, corrosion resistance, high price, the material 316 bimetallic thermometer is often used in the chemical industry, etc. When selecting a bimetallic thermometer material we must be clear using the corrosion degree of temperature range and use of the environment. Now the most commonly used two kinds of stainless steel are 304 and 316, they are 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 316 material components. And one reason is a 316-304 steel content is low, not easy and other physical reaction. But there is an exception, it is under the environment of sulfuric acid, high temperature also cannot use 316 again! Because the material 316 will have a chemical reaction and sulfur. So there is no any kind of stainless steel is universal. Actually, the stainless steel is a piece of impurities, but these impurities compared to steel is more resistant to corrosion.