Chromium 40 has a very high hardness after high frequency quenching, and can be used in mechanical parts, such as automobile steering, machine tool bearings and gears. Next, Guangzhou Youzao will introduce to you what is the highest hardness of 40 chrome induction quenching? What are the characteristics? 40 chrome induction quenching hardness 1. Introduction to 40 Cr One of the most widely used steels in the industry. After quenching and tempering treatment, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel is good, it can be hardened to Ф28～60mm when water quenched, and can be hardened to Ф15～40mm when oil quenched. In addition to quenching and tempering, this steel is also suitable for cyanidation and induction hardening. The cutting performance is good. When the hardness is 174-229HB, the relative machinability is 60%. This steel is suitable for making medium-sized plastic moulds. 2. What is the highest hardness of 40Cr heat treatment? 40Cr is quenched at 850℃, oil-cooled; tempered at 520℃, water-cooled and oil-cooled. 40CR surface quenching hardness is HRC52-60, flame quenching can reach HRC48-55. The hardness is related to the carbon content. The higher the carbon content, the higher the hardness. 40CR normal quenching hardness HRC47~50. 40CR 840～860℃ quenching with oil cooling can reach hardness HRC52～56. Induction hardening can achieve about HRC60. 3. Characteristics of 40 chrome Medium carbon modulation steel, cold heading die steel. The steel is moderate in price, easy to process, and can obtain certain toughness, plasticity and wear resistance after proper heat treatment. Normalizing can promote tissue spheroidization and improve the cutting performance of blanks with hardness less than 160HBS. Tempered at a temperature of 550~570℃, the steel has the best comprehensive mechanical properties. The hardenability of this steel is higher than that of 45 steel, and it is suitable for surface hardening such as high frequency quenching and flame quenching. 40 chrome induction quenching hardness What is the highest hardness of 40 chrome induction quenching? What are the characteristics? After reading this article, everyone is clear. If you still have questions about this material, you can go to Kehua Induction Heating Equipment
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