Production technology and processing properties of S355M weathering steel

The production process and processing properties of S355M weathering steel are described as follows:

Production process:
1. Steel manufacturing: S355M weathering steel is manufactured through traditional steel production processes such as smelting, refining and continuous casting. In the production process, ensure the accurate ratio of alloy elements and control the content of alloy elements to obtain the required chemical composition.

2. Hot rolling process: In the hot rolling process, S355M weathering steel is rolled by heating to the appropriate temperature to form the required sheet, profile or pipe. This process can adjust dimensions such as thickness, width and length of steel.

3. Controlled cooling: After the hot rolling process, S355M weathering steel usually undergoes a controlled cooling process. In this process, the steel is rapidly cooled to form the desired microstructure and mechanical properties, while contributing to the formation of the oxide layer required for weather resistance.

Processing properties:
1. Weldability: S355M weathering steel has good weldability and can be connected and processed by common welding methods. However, during the welding process, attention needs to be paid to selecting the appropriate welding materials and process parameters to ensure that the properties of the weld area match the base material.

2. Machinability: S355M weathering steel has good machinability in cutting processing. Common cutting tools and techniques can be used to cut, drill, mill and turn them.

3. Bending and forming properties: S355M weathering steel has suitable bending and forming properties, and can be processed by cold bending or hot forming. However, care needs to be taken to select the appropriate process parameters and methods to avoid excessive strain and damage.

Overall, S355M weathering steel has good weldability, machinability, bending and forming properties, making it suitable for a variety of processing and manufacturing processes. In the actual processing, it is recommended to take appropriate measures according to the specific process requirements and processing conditions to ensure that the best processing results meet the requirements.