430 stainless steel and 304 stainless steel difference

430 stainless steel, also known as "Rustless iron Stainless iron", has good corrosion resistance, has better thermal conductivity than austenitic stainless steel, 430 magnetic, 304 is micro-magnetic.It's easy to judge with a magnet.

Stainless steel for everyday use:

430 belongs to ferrite stainless steel, with magnetic, used for cutting tools, etc. (wear-resistant, hard)

Tableware currently commonly used austenitic stainless steel 304 (austenitic good corrosion resistance)

The difference between 430 and 304

1. Corrosion resistance

430 stainless steel containing chromium 16.00-18.00%, basically free of nickel metal, 304 stainless steel containing chromium nickel metal more, so 430 stainless steel corrosion resistance is not as good as 304 stainless steel.

2. Stable performance

430 stainless steel is ferrite form, 304 stainless steel is austenitic form, 304 stainless steel is more stable than 430 stainless steel.

3, toughness

304 stainless steel has a strong toughness, than 430 stainless steel toughness.

4. Thermal conductivity

The ferrite of 430 stainless steel has better thermal conductivity than that of 304 stainless steel.

5, mechanical properties

430 stainless steel added stable chemical element titanium, weld mechanical properties are better than 304 stainless steel.

403 and 304 applications

430 stainless steel use areas:

1, 430 stainless steel is mainly used for building decoration, fuel burner parts, household appliances, home appliances parts.

2, in 430 stainless steel plus easy to cut steel type 430F, mainly used for automatic lathes, bolts and nuts.

3. Add Ti or Nb to 430 stainless steel, reduce C content to 430LX, improve processing performance and welding performance, mainly used in hot water tanks, hot water systems, sanitary appliances, household durable appliances, bicycle flywheels, etc.

304 stainless steel use field:

1, 304 stainless steel with high temperature resistance, good processing performance, high toughness characteristics, widely used in industrial and furniture decoration industry and food and medical industry.

2, 304 stainless steel has a strong corrosion resistance, widely used in the production of good comprehensive performance (corrosion resistance and molding) equipment and parts.

Summary: 304 stainless steel and 430 stainless steel have advantages

430 stainless steel has good thermal and mechanical properties, building decoration, fuel burner parts, household appliances, home appliances and other fields.

304 stainless steel has strong toughness and corrosion resistance in industrial and food and medical industries that require corrosion resistance.