Jiangsu JieDa Specific New Material Co.,Ltd

1、 Through the optimization design of material composition, the selection of selected ores, the specified smelting process, the control of the purity of molten steel and the rolling compression ratio, the billet is made with good processing performance and welding performance; The steel billet is made of water purity and rolling compression ratio, which has good processing performance and welding performance;

2、Through the improved pass design of the forming die, the seamless steel pipe is formed with stable overall dimensions, and the corner has a certain wall thickness increase, which can increase the deformation resistance of the steel pipe;

3、Heat treatment before forming to eliminate cold working stress and rearrange the grain structure to ensure the ductility of corners during forming and avoid cracks caused by corner stress concentration;

4、According to the set process system, the finished product is heat treated to obtain good comprehensive mechanical properties and technological properties;