Professional Stainless Steel Pipe Manufacturer: The pursuit of quality, Excellence, Best meet customer needs.

How to identify the quality of stainless steel pipes? 7 great tips

by:HHGG     2021-04-06
How to identify the quality of stainless steel pipes? 7 big tips 2019-04-14 The method to identify the quality of stainless steel pipes. Many times we need to use stainless steel pipes. Many times we buy them directly in the market. However, most of the market is engaged in the distribution of stainless steel pipes. They do not produce stainless steel pipes, but sell them wholesale. They cannot guarantee the quality of stainless steel pipes. All he can do is to represent a brand of high-quality stainless steel pipes. . So we know how to identify the quality of stainless steel pipes? Only then can we buy high-quality stainless steel pipes. 1. The material of stainless steel tube The material of stainless steel tube is the basis for determining the quality of stainless steel tube. The corrosion resistance of 316 stainless steel tube is better, followed by 304 stainless steel tube. The material of 201 stainless steel tube is slightly worse than that of 304 stainless steel tube. So how do we identify the material of the stainless steel pipe? The following methods can be used: Magnetic test: The magnetic properties of 316 and 304 are too small. 1. Nitric acid point test: It is an intuitive test method to test the corrosion resistance of the substrate through the nitric acid point test. Generally, a good stainless steel pipe will only be slightly corroded during the test, and a stainless steel pipe with a relatively low corrosion resistance will have Obvious signs of corrosion. 2. Stainless steel measuring solution: also called stainless steel tube detection potion. The surface of the stainless steel tube is guaranteed to be free of stains. After grinding off the surface coating, point a drop of the measuring solution to remove the coating, observe the color change of the stainless steel in the test area, and compare the color of the stainless steel or the time it turns red . 3. Observation through sparks: through sparks and hardness during cutting or welding, it is also possible to distinguish the pros and cons of stainless steel pipe materials. Second, the production process of stainless steel pipe 1. Polishing brightness: the smoother the surface of the brightness moon, the smaller the oxidized area, the higher the corrosion resistance. 2. Welding seam nitrogen protection: most of it starts from the welding seam, so the welding seam nitrogen protection can effectively improve the corrosion resistance of the stainless steel pipe 3. Precision: Although the precision is not much related to the corrosion resistance of the stainless steel pipe , But the higher the precision of the stainless steel tube, the better the process and the higher the quality. The quality of stainless steel pipe is actually controlled by the stainless steel pipe manufacturer, so it is more important for a distributor to choose a good stainless steel pipe manufacturer. It is more important to choose a stainless steel pipe brand, and it determines your development in 3-5 years.  
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