The key to stabilize the quality of SG295 gas cylinder steel plate is:
1. Select the chemical composition of the mechanical properties of SG295 gas cylinder steel plate to ensure the stability of the performance of SG295 gas cylinder steel plate.
2. Sulfur and inclusions in steel are the elements that directly affect the mechanical properties of SG295 gas cylinder steel plate. With the increase of sulfur content and inclusion content, the plasticity of SG295 gas cylinder steel plate decreased obviously. Therefore, the temperature and basicity of SG295 gas cylinder steel plate in the middle and later stage were controlled by enhanced smelting desulfurization process, and the oxidation performance of the end point was controlled by high-pressure charging and blowing.
