Building materials people are difficult to distinguish 201 and 304 stainless steel, resulting in some bad businesses with 201 as 304 to sell to customers, which not only makes the customer suffered losses and disrupted the market order, more serious risk may occur, here is how to distinguish 201 stainless steel and 304 stainless steel.
1, 201 stainless steel contains manganese, but 304 does not;From the color, 201 stainless steel will be darker than 304, 304 white and bright, but it is not easy to distinguish the naked eye.
2. Due to the different content of nickel, the corrosion resistance of 201 is far less than that of 304.The acid-base resistance of 201 is not as good as that of 304.Because the carbon content of 201 is higher than 304, 201 is harder and more brittle than 304, and 304 has better toughness. A scratch on the surface of 201 with a hard knife will generally have obvious scratches, while the scratch on 304 will not be obvious.
3, now in the market has a stainless steel testing potion, as long as a few drops in a few seconds, and can distinguish between what is material of stainless steel, this lotion is particularly convenient, the principle is to make the material contained within the element and identify the chemical reaction of material in the liquid generated coloured substances, this method is very convenient, accurate and feasible.The identification potion is currently available online.
For more information on stainless steel 201 and 304, please visit: https://www.meibaotai.com
Post time: Jun-14-2019