20MnCr5 (1.7147) has a good balance of strength and toughness and is suitable for medium load and medium stress applications. 20MnCr5 can improve its mechanical properties, especially hardness and strength, through heat treatment (quenching and tempering). Due to the addition of alloy elements and improved heat treatment, 20MnCr5 has better wear resistance.
use:
Gears and Bearings: 20MnCr5 is used in gear and bearing manufacturing. Its high strength and wear resistance make it suitable for gear systems that are subject to high torque and high speed, such as automotive transmission systems, industrial machinery transmissions, etc.
Mechanical parts: Since 20MnCr5 has a good balance of strength and toughness, it is often used to manufacture various mechanical parts, such as shafts, pins, chains, etc.
Billet processing: 20MnCr5 can be used to make billets or as a base material for welded parts due to its ease of processing and improved mechanical properties after heat treatment.
20MnCr5 heat treatment methods include quenching and tempering.
1. Quenching: The 20MnCr5 material heated to 850°C to 880°C is quickly cooled to obtain high hardness and strength.
2. Tempering: After quenching, the material is heated to a temperature of 150°C to 300°C, held for a period of time, and then cooled. Tempering can improve the toughness and impact resistance of 20MnCr5.
