9Cr18 (high carbon chromium stainless steel) bearing steel

Introduction

9Cr18 high-carbon chromium bearing steel is a chromium bearing steel used in the production of steel roller bearings. It has a high-temperature strength and superior wear resistance, making it an ideal material for use in a range of industries. This steel’s strength and resistance to wear makes it a popular choice for the production of small and large-scale bearings.

History

9Cr18 high carbon chromium bearing steel has been used for the production of steel bearings for centuries. It was first developed in the 17th century by French engineers, who used it to create high-performance ball bearings for military use. These ball bearings enabled the ammunition to be fired faster and with more accuracy. Over time, this steel became increasingly popular due to its superior strength and wear-resistance. Today, it is used in the production of bearings for many different industries.

Characteristics and Benefits

9Cr18 high carbon chromium bearing steel is a hardened steel with excellent corrosion resistance. It also has a very high-temperature strength, making it ideal for use in a variety of industries, such as aerospace, automotive, and industrial. It exhibits excellent tensile strength, hardness, and wear-resistance, as well as it is less inclined to poise and splits. The steel is also very ductile, meaning it can withstand high levels of stress.

In terms of benefit, 9Cr18 high carbon chromium bearing steel is resistant to wear and can withstand temperatures up to 1000° Celsius. This makes it well suited to applications that require the bearing to be in critical locations within a process, or if it is subjected to extreme temperature or pressure. The steel also offers excellent resistance to corrosion, allowing it to perform in demanding environments. Its strength and wear-resistance also make it an ideal material for the production of small and large-scale bearings.

Applications

9Cr18 high-carbon chromium bearing steel is a by-product of steel production, which means it is widely available and inexpensive. It is used in the production of bearings for many industries, including automotive, aerospace, and industrial. It is also used in applications that require high-temperature strength and superior wear resistance, such as industrial bearings, pumps, and other engineering components. The steel is also regularly used in the manufacture of military grade arms and ammunition, as well as equipment used in the medical industry.

Conclusion

9Cr18 high carbon chromium bearing steel is a versatile and highly durable form of steel that is popularly used in a wide range of industries. It offers excellent wear resistance, corrosion resistance, and high-temperature strength. The steel is also cost-effective and widely available in large quantities due to its by-product nature. This makes it an ideal metal for the production of small and large-scale bearings.

9Cr18 steel is a high carbon chromium bearing steel. It is mainly used for the production of bearing components such as rolling bearings, rolling elements, bearing rings and thrust bearings.

The chemical composition of 9Cr18 steel is: C: 0.85-0.95Cr: 17.00-19.00, W: 0.15-0.25, V: 0.15-0.25, Nb: ≤0.080, N: ≤0.030, Mo: ≤0.10. This kind of bearing steel has good hardenability, good wear-resistance and high strength but needs to be carburized or induction hardened to get these properties.

9Cr18 steel has the following characteristics: good mechanical properties, high hardenability, good wear resistance and thermal stability. The material can be quenched and tempered to get specific characteristics. 9Cr18 steel can be heat treated to form martensite as desired. This steel also has good oxidation resistance, small thermal stress and low noise during operation.

9Cr18 steel is widely used in the production of small bearing components. It is widely used in precision bearings, rolling bearings, bearing rings, thrust bearings, connecting rods, cams and screws. 9Cr18 steel can also be used in parts such as gears, shafts and machine tools.

This material has good performance and long service life, but it is prone to corrosion under some special environment. Therefore, it is necessary to corrosion-proof or oil filling treatment on the surface to make it moisture proof. In the use of this material, it is necessary to pay attention to the use of lubricating oil for lubrication and prevent dry friction, so as to ensure the service life of the bearing.