Imported bearing steel rods, rolling bearing steel round rods, bearing steel bars 100Cr6

包装：

标准

规格：

齐全

用途：

广泛

Introduction Bearing steel is a kind of high carbon chromium bearing steel with low alloy content, good performance and the most widely used. After quenching and tempering, it has high and uniform hardness, good wear resistance, and high contact fatigue performance. This steel has cold working plasticity, medium cutting properties, poor welding properties, great sensitivity to the formation of white spots, and temper brittleness.
Implementation standards
China
Japan:
United States:
Unified number code:
Heat treatment
Steel bar annealing, steel wire annealing or - degree oil quenching .
Process parameters
. Ordinary annealing: -Cool the furnace to 10C and then air-cool
. Isothermal annealing: -Celsius heating -Celsius isothermal air cooling
.Normalizing: -Celsius heating and air cooling
.High temperature tempering: -℃ heating and air cooling
.Quenching: ℃ heating oil quenching
.Low temperature tempering: -℃ tempering and air cooling
.Carbonitriding: -℃ Co-penetration.-Hour oil quenching-degree to-degree cryogenic treatment+degree to+tempering air cooling
Manufacturing method
The smelting quality of bearing steel is very demanding and requires strict control of sulfur, phosphorus and non-metallic inclusions The content and distribution of non-metallic inclusions have a great impact on the life of bearing steel. The basic quality requirements for bearing steel are purity and uniform structure. Purity means that there are fewer impurity elements and non-metallic impurities, and the structure is uniform, that is, the carbides in the steel should be fine and evenly distributed. The higher the inclusion content, the shorter the service life. In order to improve the smelting quality, electric furnace smelting and electroslag remelting have recently been adopted. New processes such as vacuum smelting and vacuum consumable refining can also be used to improve the quality of bearing steel.
Uses
In addition to making balls, bearing rings, etc., it is also sometimes used to make tools such as dies and measuring tools.
Characteristics
Good overall performance. Good cutting performance after spheroidizing annealing. High hardness and uniform wear resistance and high contact fatigue strength after quenching and tempering. Good hot processing performance. Contains more Alloying elements are relatively cheap.