Sinosteel - Model AP -Pickling Passivation Tube

AP=Annealing (solid solution) + Pickling (pickling), the first letter AP of the two words represents two production processes. The pipe that has gone through the "solid solution, pickling" process is called AP pipe. Stainless steel AP pipe refers to a stainless steel pipe that has been pickled. Its corrosion resistance mainly comes from the reaction of the chromium element contained in it with oxygen to form a dense protective layer on its surface. The function of pickling is to make this reaction occur in advance to improve the corrosion resistance of stainless steel pipes. During the pickling process, the oil stains attached to the surface of the pipe and other substances contaminated during production will be removed.