What Material Is 440C Steel?

What material is 440C steel?

440c is equivalent to China's 9Cr18Mo.
440C high-strength cutting tool steel, slightly higher carbon content, after appropriate heat treatment can obtain high yield strength, hardness can reach 58HRC, is one of the hardest stainless steel.
440C is mainly used to manufacture bearing parts that work in corrosive environments and non-lubricated strong oxidation atmospheres. 440C has good dimensional stability at high temperature, so it can also be used as a corrosion resistant high temperature bearing steel. In addition, it can also be used to manufacture high-quality cutting tools, such as medical scalpels, scissors, nozzles, bearings, etc. 440F: It is a steel that improves the cutting performance of 440C steel. It is used for automatic lathes and ordinary alloy steel, which has the characteristics of hardening through quenching, so a large range of different mechanical properties can be obtained by selecting the grade and heat treatment conditions.

440C stainless steel is a high carbon and high chromium martensitic stainless steel. The carbon content is 1.0% and the chromium content is 17%.
Scope of application: Mainly used to manufacture bearing parts that work in corrosive environment and non-lubricated strong oxidizing atmosphere. 440C has good dimensional stability at high temperature, so it can also be used as a corrosion resistant high temperature bearing steel. In addition, it can also be used to manufacture high-quality cutting tools, such as medical scalpels, scissors, nozzles, bearings, etc. The 440C has a low capacity to withstand dynamic loads.