What is the difference between 304 stainless steel and 316 stainless steel?

1. Performance is different
304 steel can resist corrosion of sulfuric acid, phosphoric acid, formic acid, urea, etc. It is suitable for general water use, control gas, wine, milk, CIP cleaning liquid and other occasions with little or no contact with materials.
The 316L steel grade has added molybdenum 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. It is often used in applications such as pure water, distilled water, medicines, sauces, vinegar, etc. with high hygienic requirements and strong media corrosion resistance. The price of 316L is almost double that of 304.

2. Different chemical composition
304 is a cover type stainless steel, its material composition is OCr18Ni9, 316L is austenitic stainless steel, and the material composition is OOCr12Mo2Ti.

3. Different maintenance methods
304 stainless steel: 18cr-8ni-0.08c 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: 18cr-12ni-2.5Mo is more common in seaside construction, shipbuilding, 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 of brine halogen solution. Sex.

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