Stainless steel pipe fittings is a small member belonging to the big family of pipe fittings, is because he is made with stainless steel as raw materials so he is called stainless steel pipe fittings, it has a lot of members, including common elbow, three, four, stainless steel pipe reducer and so on, all belong to pipe rust steel pipe fittings.

According to the connection method, we can also divide the stainless steel pipe fittings into four categories: receiving stainless steel pipe fittings, threaded stainless steel pipe fittings, welded stainless steel pipe fittings and flanged stainless steel pipe fittings. The stainless steel materials mainly used for making stainless steel pipe fittings are 304, 304L, 316 and 316L respectively.

So when we use the ultrasonic cleaning machine to clean the stainless steel pipe fitting, why do there appear many gray and black spots on its surface?

In fact, this is a kind of oxidation reaction, with strong oxidizing acid, the chloride ion will be on the surface of the stainless steel pipe pitting corrosion, the formation of the naked eye can see the gray black spots. But still want specific case specific analysis, specific or to see your stainless steel pipe before cleaning is in a what kind of state, the final determination is what reason.