In daily life, we often encounter situations where we need to identify 201 and 304 stainless steel plates. Since there are no anti-counterfeiting marks, many people don't know how to judge. Here are three simple and easy ways to help you easily distinguish between 201 and 304 stainless steel plates.
First, observe the gloss of the stainless steel plate. 304 stainless steel plate has good gloss, the surface is smooth and shiny, and the touch feels very smooth; The 201 stainless steel plate is dark in color, has no gloss, and has a rough feeling to the touch, and even has a convex and uneven touch. When we touch these two stainless steel materials separately after wetting our hands, we can find that the water-stained handprints on the 304 plate are easier to erase, while the 201 stainless steel plate is not easy to erase.
Secondly, we can use a sander for polishing. After the grinding wheel is installed, gently polish and polish both plates or plates. Pay attention to the state of the spark when grinding. The sparks of 201 are longer, thicker and more numerous, while those of 304 are shorter, thinner and fewer. Keep the same grinding strength to better separate the two materials.
Finally, we can also use a professional stainless steel identification solution for identification. Apply the stainless steel pickling paste to each of the two stainless steel plates and observe the color change at the application site. If the color is dark, it is 201 stainless steel plate; If it is whitish or does not change color, it is 304 stainless steel plate. Although this method is professional, it requires the purchase of professional identification potions, and the cost is relatively high.
In addition to the above three methods, it can also be identified by observing the magnetic properties of the stainless steel plate. Generally speaking, 201 stainless steel plate has some magnetic properties, while 304 stainless steel plate has no magnetic properties. However, this method requires the use of magnets for testing, and if there are no magnets, it is necessary to make auxiliary judgments on the basis of other methods.
In conclusion, for 201 and 304 stainless steel plates without anti-counterfeiting marks, we can identify them by observing the gloss, using a grinder, and a professional potion. Through these methods, we can easily distinguish between 201 and 304 stainless steel plates and avoid buying stainless steel products of poor quality. At the same time, we also need to pay attention to choosing formal channels to buy stainless steel products to ensure product quality and self-safety.