304 stainless steel mesh and 316 stainless steel mesh difference
304 stainless steel mesh is a common type of stainless steel wire mesh products. 316 stainless steel mesh stainless steel mesh products in the more high-end varieties. So, the difference between these two stainless steel mesh is mainly wher304 stainless steel mesh is a common type of stainless steel wire mesh products. 316 stainless steel mesh stainless steel mesh products in the more high-end varieties.
So, the difference between these two stainless steel mesh is mainly where? Please look at the following comparison:
1, different chemical composition:
304 network representation is: 0Cr18Ni9 The number behind the element represents the percentage of the element, 0 represents the carbon content, but where 0 does not mean that the carbon content is 0, but that the carbon content in the percentage A few zero, its content is very low meaning. To determine a stainless steel up to 304 standards, the industry's common rule is that as long as the nickel content of 8%, chromium content of 18%, it can be considered 304 stainless steel mesh. In the stainless steel mesh industry, often to determine whether the nickel content of 8 to determine the basis of more than 8 nickel is 304, in fact, this is not an accurate view. Some small-scale steel mills produced more than 8% nickel content in the recycle 304, but the chromium content is about 16%. Practice shows that the 304 corrosion resistance is still somewhat different from the national standard 304.
316 expression is: 0Cr18Ni10Mo2 From the grade comparison can be seen 316 stainless steel mesh in addition to nickel content higher than the 304 stainless steel mesh 2 percentage points, but also joined the more than 2 molybdenum elements, adding molybdenum stainless steel can improve the resistance of steel Corrosive, especially pitting corrosion resistant to chloride, but also increases the strength, toughness and wear resistance of stainless steel.
2, different temperature performance:
Generally believed that, due to join more nickel, 316 stainless steel mesh performance under high temperature 304 stainless steel mesh is better, mainly in the first 316 stainless steel mesh can be resistant to high temperature atmospheric corrosion, and second, 316 stainless steel mesh in high temperature conditions , The strength of performance better than 304 stainless steel mesh. Therefore, many engineers choose to use 316 stainless steel mesh material under high temperature conditions, but 316 stainless steel mesh is relatively acid resistant at high temperatures, especially thicker sulfuric acid, 316 stainless steel mesh can not withstand the higher temperatures .
3, the scope of application is different:
304 stainless steel mesh is a universal stainless steel mesh, which has excellent corrosion resistance in a dry and clean atmosphere. It also has good corrosion resistance to alkaline solution and most organic and inorganic acids at normal temperature. But in the marine environment, due to the seawater contains a lot of salt and chloride ions, 304 stainless steel mesh is likely to cause intergranular corrosion, at the same time its mechanical properties will be affected, under pressure in the case of equipment parts easily damaged; 316 stainless steel The mesh is excellent at combating the erosion of the marine environment because Mo is not only resistant to chloride ion corrosion but also carbonized by Mo to prevent the stainless steel mesh from becoming brittle and greatly enhance the mechanical properties of the stainless steel mesh. Due to the excellent performance of 316 stainless steel mesh in the marine environment, 316 stainless steel mesh is commonly used in marine equipment, also known as "naval steel." In addition, 316 stainless steel mesh is also used in pulp and paper equipment heat exchangers, dyeing equipment, film processing equipment.
4, the price is different:
304 stainless steel mesh is affordable, widely used, cost-effective, 316 stainless steel mesh is 304 stainless steel mesh price 1.5 times higher cost. Therefore, users should choose the appropriate stainless steel mesh products according to their specific use of the environment.
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