SS316L grade stainless steel, sometimes referred to as A4 stainless steel or marine grade stainless steel, is the second most common austenitic stainless steel after 304/A2 stainless steel.
S 7166 (OTTO) Stainless steel - SS316L plate, 100 x 100 x 6 mm - used in chemical and petrochemical industry, in pharmaceutical equipment, medical devices, in potable water, wastewater treatment, in marine applications and architectural applications near the seashore or in urban areas.