What is the difference between the 304 stainless steel screen and the 316 mesh?
1. First of all, the material is different, 316 contains more than 304 nickel, and nickel is an important component affecting the anti-rust properties of stainless steel.
On the surface, there is no difference between stainless steel meshes with different materials, but the service life will be different during the process of use. Nickel-free stainless steel is rusted after being wet or wet, and nickel-containing screens have a relatively long service life.
Compared with the 304 stainless steel screen, the main difference between the chemical composition of 316 and 304 is that 316 contains Mo, so 316 will have strong corrosion and rust resistance. Therefore, when selecting a stainless steel screen, if the corrosive material is filtered, it is more suitable to select a 316 stainless steel screen.
2. Performance is different
304 steel can resist the corrosion of sulfuric acid, phosphoric acid, formic acid, urea, etc. It is suitable for general water use, and it is used to control gas, wine, milk, CIP cleaning liquid and other occasions with little or no contact with materials.
The 316L steel grade has added molybdenum element on the basis of 304, which can significantly improve its resistance to intergranular corrosion, oxide stress corrosion and reduce the hot cracking tendency during welding, and it also has good resistance to chloride corrosion. Commonly used in pure water, distilled water, medicines, sauces, vinegar and other occasions with high hygiene requirements and strong media corrosion. The price of 316L is almost double that of 304.
3. Different use environments
304 stainless steel: good corrosion resistance, oxidation resistance and processability, resistant to strong oxygen acid, can be stamped, can be used to make containers, tableware, metal furniture, building decoration, and medical equipment. 316 stainless steel: It is more common in seaside construction, ships, nuclear electrochemistry and food equipment. It not only improves the corrosion resistance of chemical hydrochloric acid and the ocean, but also improves the corrosion resistance to brine halogen solution.
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