While more than 50 types of stainless steel are available today, professional-grade railing systems typically use 304 or 316 grades. 304-grade stainless is also known as “18-8 stainless,” referring to its composition of 18% chromium and 8% nickel. This type of stainless steel is often used in indoor applications.In the design and manufacture of stainless steel railing systems, three types of steel dominate:
Carbon steel
Grade 304 stainless steel
Grade 316 stainless steel