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How to distinguish whether stainless steel composite material is 304 material


Today, Ningtai Metal will introduce the three most common methods of distinguishing whether stainless steel composite materials are 304 materials:

Method 1: Distinguish the steel according to the color and smoothness of the steel surface. However, this method can only be correctly identified by professionals.

Method 2: Buy 304 stainless steel inspection potion at the hardware store. 304 stainless steel, it has no change in 3 minutes after the inspection of the potion, and the color of the bottom becomes slightly darker. In addition, 201 stainless steel, the potion will turn dark brown red in an instant, 202 stainless steel, the potion will turn light brown red within 5 seconds, 301 stainless steel, the potion will turn light brick red in 1-2 minutes.

Method 3: Magnets. The magnetism of 304 stainless steel is relatively small, so we can buy special magnets to distinguish the true and false of 304 stainless steel according to the size of the magnetism. If the magnetism is too large, it should be 202 stainless steel.

The above is the method of distinguishing 304 stainless steel. If you are interested in purchasing, please call: 0579-82057206