Sodium Hydroxide (Caustic Soda) is a strong base. It is used in metal degreasing and cleaning processes in a wide range of industry applications.
Stainless steel types 304 and 316 can be considered resistant below 80 degC, up to the limit of solubility.
Both 304 and 316 stainless steel types are resistant to a wide range of concentration and temperature. Below 80 degC they can be considered resistant to any concentration of sodium hydroxide, up to the limit of solubility. There can be a risk ofstress corrosion cracking (SCC) attack at higher temperatures, which is common to both the 304 and 316 types.
