What’s going on with food grade stainless steel 304? Does anyone know? and how to identify it. Thanks in advance.

304 stainless steel is a common material in stainless steel with a density of 7.93 g/cm3. It is also called 18/8 stainless steel in the industry. It is resistant to high temperatures of 800 degrees and has the characteristics of good processing performance and high toughness. It is widely used in industry, furniture decoration industry, food and medical industry.

Common marking methods on the market include 06Cr19Ni10 and SUS304, of which 06Cr19Ni10 generally represents national standard production, 304 generally represents ASTM standard production, and SUS 304 represents Japanese standard production.

304 is a versatile stainless steel that is widely used to make equipment and parts that require good comprehensive properties (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a brand of stainless steel produced in accordance with American ASTM standards.

recognition methods:

Wipe the stainless steel surface clean

Put a drop of 304 solution on the stainless steel surface

Connect 2 metal wires to the 2 terminals of the battery.

The other two ends of the two metal wires, one end is in contact with the stainless steel surface, the other end is placed on the 304 potion, wait for 3 seconds for reaction time

Observe the color of the potion and compare it with the instructions of the potion to know whether it is 304 food grade stainless steel.