Which material is better, stainless steel 304 or 316?

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 304 stainless steel is one of the most commonly used stainless steel types today. It's found in everyday objects like bowls, spoons, and cups. Stainless steel is primarily made from iron with added elements like carbides, nickel, and chromium. The grade of stainless steel is determined by the content of these additional elements. To qualify as 304 stainless steel, it must contain 18% chromium and 8% nickel, meeting the standards for food-grade stainless steel. This type of stainless steel resists acids and alkalis, offers high density, and has a polished, attractive appearance.

2. 316 Stainless Steel

316 stainless steel is notably more expensive than 304 due to its enhanced composition, which includes molybdenum (Mo), higher nickel content, and lower carbon content. These modifications grant 316 stainless steel superior resistance to corrosion, making it suitable for demanding applications in diet therapy, machinery, heavy industry, and high-temperature environments. This is backed by my personal experience working in the chemical industry, where 316 stainless steel is preferred for equipment subject to harsh chemical exposure. Further details on the differences can be explored in various industry reports and respected sources such as the American Society for Testing and Materials (ASTM).