Stainless steel 18-8 (A-2)
Also known as A-2 stainless, 18-8 is the most common grade of stainless steel for general use.
Stainless steel 316 (A-4)
Also known as A-4 stainless, 316 is a highly corrosion resistant grade of stainless steel. Ideal in salt water and chlorine environments.