201 and 304 stainless steel mesh test

The appearance of the stainless steel mesh of 201 and 304 materials is similar, and they are all silver white. So what method is used to identify the material of stainless steel mesh?

Generally speaking, the most direct way to identify the materials of 201 and 304 is through a special potion. We only need to drop the potion onto the stainless steel mesh for about 1 minute. If the potion is red, then It means that it is a stainless steel mesh of 201 material. If it does not change color when dropped on it, it means that it is a stainless steel mesh of 304 material.

If there is no way to buy a special test potion in some places, we can send the stainless steel mesh to the local quality and technical supervision bureau for testing.