Tempering heat treatment is a crucial step in the manufacturing process of steel plates. It involves heating the steel to a specific temperature and then cooling it slowly to strengthen its structure. Tempering heat treatment is typically carried out after hardening to reduce the brittleness of the steel caused by the hardening process.

 

Tempering Heat Treatment Time

The tempering time required for steel plate varies depending on the steel grade and the intended use of the plate. Generally, tempering times range from one hour to several hours. Longer tempering times allow for a more complete reduction in brittleness, resulting in a stronger and more ductile steel.

 

Tempering Heat Treatment Temperature

The temperature range for tempering heat treatment is typically between 400°F to 1200°F. The exact temperature required is dependent on the steel grade and intended use of the plate. Lower temperatures produce a harder steel, while higher temperatures produce a softer steel.

 

Tempering Heat Treatment Effects

During the tempering process, the internal stresses within the steel plate are reduced. This results in the steel becoming more ductile, which means it can bend without breaking. The process also reduces the brittleness of the steel, making it less prone to cracking or fracturing under stress. Additionally, tempering heat treatment can improve the steel's resistance to corrosion and wear.

 

Conclusion

In conclusion, tempering heat treatment is a critical step in the manufacturing process of steel plates. The correct tempering time and temperature are essential to ensure the steel achieves the desired strength and ductility. By reducing the brittleness and internal stress of the steel plate, tempering heat treatment can also improve the steel's resistance to wear and corrosion.