Stainless steel pipe fittings belong to a small member of the big family of pipe fittings. It is because they are made of stainless steel as raw materials that they are called stainless steel pipe fittings. There are many members in it, including common elbows, tees, and four. Passes, stainless steel reducers, etc., are all pipe rust steel pipe fittings. According to the connection method, we can divide stainless steel pipe fittings into four categories: 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 to make stainless steel pipe fittings are 304, 304L, 316 and 316L.
So when we use an ultrasonic cleaner to clean stainless steel pipe fittings, why do they have a lot of gray-black spots on the surface? In fact, this is an oxidation reaction, with a strong oxidizing acid, the chloride ions inside will cause pitting corrosion on the surface of the stainless steel pipe fittings, forming gray-black spots visible to the naked eye. However, it is still necessary to analyze the specific situation. The specific situation depends on the state of your stainless steel pipe fittings before cleaning, and finally determine the reason.
