1. Stainless steel detector test
Use stainless steel detectors to test the authenticity of 304 stainless steel. Different stainless steel products will display different colors when they encounter stainless steel detectors. Therefore, it is more accurate and standard to use different colors to distinguish whether 304 stainless steel is genuine.
2. Using magnetism to judge
Use magnetism to judge the authenticity of 304 stainless steel. 304 stainless steel is weakly magnetic, so when you use a magnet to absorb magnetic 304 stainless steel, it will show that the magnetism is not strong, so to distinguish whether 304 stainless steel is true or false.
3. Use copper sulfate to detect
Use copper sulfate to detect, use copper sulfate to wipe off the steel with oxide layer, if it does not change color after rubbing, you can generally judge stainless steel, but if it turns purple, if it is non-magnetic, it is high manganese steel, and if it is magnetic, it is generally Ordinary steel or low alloy steel.
