SUS447J1 stainless steel is a type of ferritic stainless steel that is commonly used in various industrial applications due to its exceptional properties. This steel contains high levels of chromium and molybdenum, which make it highly resistant to corrosion and oxidation. Additionally, it has extremely low levels of carbon and nitrogen, which helps to improve its weldability and formability.

One of the main applications of SUS447J1 stainless steel is in the production of equipment related to organic acids such as acetic acid and lactic acid.

SUS447J1 stainless steel is also used in the production of caustic soda equipment, as it is resistant to corrosion from caustic soda solutions. It is also highly effective in preventing stress corrosion cracking caused by chloride ions and is resistant to pitting corrosion, making it an ideal material for use in harsh environments.

SUS447J1 stainless steel is also used in pollution prevention devices, such as wastewater treatment plants, due to its ability to resist corrosion from various types of pollutants.