SUS440C is an extremely hard stainless steel that belongs to the martensis system of stainless steels. It needs to be heat treated to achieve high hardness and is often used to manufacture mechanical parts that require high strength and wear resistance, such as bearings and tools.
SUS440C has high hardness and good corrosion resistance, but heat treatment conditions can affect its performance. Therefore, the use of SUS440C requires a good understanding of its properties and applicable heat treatment conditions.
Here are the main features and applications of the SUS440C:
Characteristics: SUS440C has extremely high hardness, usually above HRC58. It also has good abrasion resistance and tensile strength.
Corrosion resistance: SUS440C has a relatively high corrosion resistance because it contains a higher percentage of chromium. But compared to other stainless steels, such as AISI 304, it is slightly less resistant to corrosion.
Heat treatment: SUS440C needs to go through heat treatment processes such as quenching and tempering to achieve the desired hardness and performance.
Applications: SUS440C is commonly used in the manufacture of mechanical parts such as bearings, cutters, blades, blades, cutters, gears, molds, etc., as well as medical and food processing equipment.
In conclusion, SUS440C is a stainless steel with extremely high hardness and good wear resistance, which is suitable for mechanical applications that require high strength and wear resistance. However, before use, it is essential to properly understand its properties and heat treatment conditions to ensure that the desired performance is obtained.