What is the difference between 420 stainless steel and 416 stainless steel?
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The main differences between 420 stainless steel and 416 stainless steel are chemical composition, mechanical properties and application areas.
420 vs 416 Stainless Steel Chemical Composition and Mechanical Properties
420 stainless steel is a high carbon martensitic stainless steel with a high carbon content, usually between 0.36% and 0.45%. It has good wear resistance and corrosion resistance, especially good resistance to the atmosphere in the hardened condition.420 stainless steel has a high hardness and is suitable for applications that require high hardness and wear resistance.
416 stainless steel is a free-cutting martensitic stainless steel with a low carbon content, usually between 0.6%-0.75%. It has good cutting performance and corrosion resistance, but its corrosion resistance is not as good as 420 stainless steel. 416 stainless steel is mainly used in occasions that require good cutting performance.
420 vs 416 stainless steel Corrosion resistance
420 stainless steel has good resistance to the atmosphere in the hardened condition, has high wear resistance and corrosion resistance, and is suitable for various corrosive environments.
416 stainless steel is not as corrosion resistant as 420 stainless steel, but it still shows good corrosion resistance under certain conditions, especially resistance to stress corrosion cracking.
420 vs 416 stainless steel Application areas
420 stainless steel is widely used in various precision machinery, bearings, electrical, equipment, instruments, meters, transportation vehicles, household appliances, food tableware and hospital equipment, etc. Due to its high hardness and wear resistance, 420 stainless steel is also often used in occasions requiring high strength and high wear resistance.
416 stainless steel is mainly used in the production of solenoid valves, micro motors and electrical components. It is suitable for these parts that require precise processing due to its good cutting performance and low carbon content.
