How to distinguish between 304 stainless steel and 316 stainless steel

If you look at 304 stainless steel and 316 stainless steel with the naked eye, there is generally no difference. Therefore, many merchants sell 304 stainless steel as 316 for their own benefit. But the price difference between the two is still quite large. Because 316 stainless steel is food grade and has better corrosion resistance, the price of 316 stainless steel will be more expensive than 304.

Since the chemical composition added to 304 stainless steel and 316 stainless steel is different, when distinguishing between 304 stainless steel and 316 stainless steel, professional stainless steel potions can also be used to distinguish. After dripping the potion on the stainless steel, the surface of 304 stainless steel is generally a little red, while the surface of 316 stainless steel will be black.

The distinction between 304 stainless steel and 316 stainless steel can also be tested with a magnet. If the stainless steel is made of 304 stainless steel, it cannot be attracted by the magnet. However, the accuracy of this method is relatively low.

In fact, if it is just for home use, there is no need to choose 316 stainless steel, because the characteristics of 304 stainless steel are also in full compliance with home use standards.