Q355B heat treatment

Q355B low-alloy high-strength structural steel is a processing technology that selects appropriate methods for solid stainless steel plates to carry out heating, heat insulation and cooling to obtain the required organizational structure and characteristics. Quenching and tempering treatment not only can be used to strengthen steel, but also can improve the performance index of mechanical parts, and can also be used to improve the performance of stainless steel plates. The same point is: only the internal organizational structure is changed, and the surface appearance and specifications are not changed.
 
Q355B heat treatment process can significantly improve the physical properties of steel, improve the compressive strength, ductility and service life of parts, and improve the hardness and wear resistance. Therefore, critical equipment parts and special tools must be quenched and tempered. The quenching and tempering treatment can also improve the production and processing performance of the product workpiece, thereby improving the production efficiency and production processing quality. Therefore, the quenching and tempering treatment plays a very critical function in the industrial production of machinery and equipment manufacturing.
 

In the production of Q355B steel, the heat treatment followed by high temperature quenching is called "heat treatment". After heat treatment, the parts have excellent comprehensive physical properties and are widely used in a variety of key structural parts, especially crankshafts, anchor bolts, transmission gears and shaft parts that work under alternating loads. However, the surface layer has low strength and is not resistant to wear.
 

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