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Since there are many examples of different grades of stainless steel that can be used interchangeably in some of the same fields, there are always people who will ask which is better between 430 stainless steel and 304 stainless steel? 430 stainless steel has good thermal conductivity and mechanical properties. It is used in architectural decoration, fuel burner parts, household appliances, home appliance parts and other fields. 430 stainless steel is better: 304 stainless steel has strong toughness and corrosion resistance. In industries that require corrosion resistance such as industry, food and medical care, 304 stainless steel is better. Comparison of the performance of 430 stainless steel and 304 stainless steel: 1. Corrosion resistance: 430 stainless steel contains 16.00-18.00% chromium and basically does not contain nickel metal. 304 stainless steel contains more chromium and nickel metal, so 430 stainless steel has poor corrosion resistance. 2. Stability: 430 stainless steel is ferrite, 304 stainless steel is austenite, and 304 stainless steel is more stable than 430 stainless steel. 3. Toughness: 304 stainless steel has strong toughness, which is stronger than 430 stainless steel. 3. Thermal conductivity: The ferrite of 430 stainless steel has better thermal conductivity than the austenite of 304 stainless steel. 4. Mechanical properties: 430 stainless steel adds the stable chemical element titanium, and the mechanical properties of the weld are better than 304 stainless steel. Application areas of 430 stainless steel: 1. 430 stainless steel is mainly used for architectural decoration, fuel burner parts, household appliances, and home appliance parts. 2. Adding 430F, a steel grade with easy-to-cut properties, to 430 steel is mainly used for automatic lathes, bolts and nuts, etc. 3. Adding Ti or Nb to 430 steel and reducing the C content to become 430LX improves the processing and welding properties, and is mainly used for hot water tanks, hot water supply systems, sanitary appliances, durable household appliances, bicycle flywheels, etc. 304 stainless steel application areas: 1. 304 stainless steel has the characteristics of high temperature resistance, good processing performance and high toughness, and is widely used in industry, furniture decoration industry and food and medical industry. 2. 304 stainless steel has strong corrosion resistance and is widely used in the production of equipment and parts that require good comprehensive performance (corrosion resistance and formability). Summary: 430 stainless steel and 304 stainless steel each have their own advantages; 430 stainless steel has good thermal conductivity and mechanical properties, and is better in the fields of building decoration, fuel burner parts, household appliances, and home appliance parts; 304 stainless steel has strong toughness and corrosion resistance, and is better in industries that require corrosion resistance such as industry, food and medical.