The microstructure of 1Cr 18Ni9Ti stainless steel is austenite. In 1Cr 18Ni9Ti, 1, 18, 9 represent the contents of carbon, chromium (%) and nickel (%) respectively, which are brands of stainless steel in China. Used for manufacturing acid-resistant containers and equipment linings, magnetic instruments and medical instruments, with good intergranular corrosion resistance.
Extended data
Matters needing attention in welding 1Cr 18Ni9Ti:
1, before welding, pay attention to whether the nozzle and conductive nozzle are clean, whether the gas flow rate is appropriate, clean the bottom surface and control the interlayer temperature.
2. Because of the gas shielded welding of the filling layer and the covering layer, the length of the welding wire has a great influence on the stability of the welding process. If the welding wire length is too short, it will overheat the nozzle, causing spatter to stick or block the nozzle, thus affecting the gas flow.
3. When welding, the angle of the welding torch should be perpendicular to the axis of the pipeline. Because the pipe is round, it is necessary to change the angle of the welding torch at any time, so as to ensure the quality of the weld and avoid the phenomenon of porosity and slag inclusion in the weld.
reference data
Baidu encyclopedia-1Cr 18Ni9Ti