S275JR steel plate production process and processing characteristics

The production process and processing characteristics of S275JR steel plate are as follows:

Production process:
1. Raw material preparation: Select high-quality steel billets for testing and quality control.

2. Steelmaking: iron ore and other raw materials are converted into molten steel by high-temperature smelting, and the alloying element content and chemical composition are controlled.

3. Continuous casting: the molten steel after steelmaking is continuously cast into billets or slabs by continuous casting machine.

4. Hot rolling: The hot rolling process is used to heat, rough rolling, fine rolling, cooling and other steps to form a hot-rolled steel plate with a certain size and thickness.

5. Surface treatment: pickling, shot blasting and other surface treatment processes can be carried out to improve surface quality and coating adhesion.

6. Cutting and leveling: According to customer requirements, the large plate will be cut into the specified size of the steel plate, and the leveling treatment.

7. Finished product quality inspection: the physical and chemical properties test, appearance inspection and other quality control links of the finished product.

Processing features:
1. Good weldability: S275JR steel plate has good weldability and is suitable for welding processing.

2. Easy to cut and press: Due to its low carbon content and high plasticity, S275JR steel plate performs well in cutting, stamping and other processing processes.

3. Good formability: In cold bending, rolling, stretching and other forming processes, S275JR steel plate is usually not easy to break or crack.

4. Processing deformation: It should be noted that bending, distortion and other deformation may occur during cold processing, and it is necessary to arrange the processing order and method reasonably.

5. Hot processing: For thicker S275JR steel plates, hot processing can improve their formability and reduce processing deformation.

6. Surface treatment: After processing, surface treatment can be carried out according to needs, such as galvanized, spray anticorrosion, etc., to increase corrosion resistance.

In summary, the production process and processing characteristics of S275JR steel plate make it one of the high-quality materials widely used in structural parts, mechanical manufacturing and other fields.