Grade 440C Stainless Steel Supplier in India - Jai Gurudev Steel (Since 2005)
Jai Gurudev Steel (Since 2005) is one of the leading Grade 440C Stainless Steel Suppliers, Stockists And Dealers in India. 440C is a bearing steel, and used in rolling contact stainless bearings, e.g. ball bearings and roller bearings. 440C is also used to make knife blades. 440C can be oil quenched to achieve maximum hardness.
440C (UNS designation S44004) is a martensitic 400 series stainless steel, and is the highest carbon content from 400 stainless steel series. 440C is usually heat treated to reach hardness of 58–60 HRC. 440C is a bearing steel, and used in rolling contact stainless bearings, e.g. ball bearings and roller bearings. 440C is also used to make knife blades. 440C can be oil quenched to achieve maximum hardness.
Grade 440C stainless steel is a high carbon martensitic stainless steel. 440C STAINLESS STEEL ( S S 440C) has high strength, moderate corrosion resistance, and good hardness and wear resistance.
440C stainless steel is a member of the 400 series of stainless steels. 440C has the highest carbon content among them. The standout properties of this type of steel (440C) are its hardness, mechanical strength and fatigue resistance. This combination of properties makes it useful in the production of cutting tools. Due to its high carbon content, 440C does not have outstanding corrosion resistance, but 440C can still be used for applications that require moderate corrosion resistance such as surgical instruments.
440c stainless steel is martensitic, which implies that it is hardenable by heat treatment. The general goal of the heat treatment of 440c stainless steel is to limit, as much as possible, the amount of austenite in the steel 440C and promote the creation of martensite
Grade 440C martensitic stainless steel can achieve the highest strength, wear resistance and hardness of all the stainless alloys after heat treatment. The metal’s very high carbon content is responsible for these characteristics, which make the 440C suitable for use in components, such as ball bearings and valve parts.
Grade 440C is more available than the A or B variants, despite the fact that all three versions of this grade are standard grades.
440C Martensitic stainless steels are designed for high hardness, and other properties are compromised to an extent. Their functional operating temperature range is restricted by their loss of ductility at sub-zero temperatures, and loss of strength by over-tempering at high temperatures. The alloy designations are 440C, UNS44004, and 1.4125. 440C stainless steel is supplied in the form of bar.
440C offers good resistance to fresh water, alkalies, foods, the atmosphere, and mild acids. Excellent resistance can be achieved in the hardened and tempered and passivated condition in Grade 440C. The corrosion resistance of grade 440C is similar to that of grade 304 in several environments.
4440C steel cannot be exposed to temperatures exceeding the appropriate tempering temperature, due to the reduction in mechanical properties by over-tempering.
440c stainless steel is one of four 440 stainless steel types, including 440a, 440b, and 440f. 440C has the highest hardness, highest strength and greatest wear resistance of all of them after 440C has undergone hardening via heat treatment. 440C is magnetic both in its pre-hardened and post-hardened states. 440c steel has moderate corrosion resistance when compared to other stainless steels, and 440C exhibits its best corrosion resistance in its hardened and tempered form. However, care must be taken to avoid over-tempering for Grade 440C, which results in a decline in its corrosion resistance.
The unique properties of 440c stainless steels make it useful for many applications. 440C is excellent wear resistance makes it suitable for the production of valve components and ball bearings with industry-standard requirement Rockwell hardness of 58. Its hardness and strength also make it suitable for the production of cutting tools, such as knives and blades. 440C is also used to make measuring instruments like gauge blocks. 440c stainless steel is not recommended for use at high temperatures (typically higher than 400 °C) to avoid reduction of its corrosion and impact resistance.