316 Stainless Steel

Characteristics of 316 Stainless Steel - Referred to as an 18-8 Stainless Steel

316 Stainless Steel

316 Stainless Steel is the standard molybdenum-bearing grade, second in importance to 304 SS amongst the austenitic stainless steels. The molybdenum gives 316 SS better overall corrosion resistant properties than 304 Stainless Steel, particularly higher resistance to pitting and crevice corrosion in chloride environments. 316 Stainless Steel has excellent forming and welding characteristics. It is readily brake or roll formed into a variety of parts for applications in the industrial, architectural, and transportation fields. 316 SS also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections.

316 SS Characteristics/Properties

Austenitic (chromium-nickel stainless class) stainless steel containing 2%-3% molybdenum (whereas 304 has none). The inclusion of molybdenum gives 316 greater resistance to various forms of deterioration. Material also includes 16-18 percent Chrome, 10-24 percent Nickel, .08 percent Carbon, 2 percent magnesium and .75 percent max. Silicon.

Applications/Industries

  • Food preparation equipment, especially in chloride environments
  • Chemical processing, equipment
  • Laboratory benches and equipment
  • Fasteners
  • Rubber, plastics, pulp & paper machinery
  • Pollution control equipment
  • Condensers, evaporators and tanks
  • Pharmaceutical and textile industries
  • Boat fittings, value and pump trim

Notes on 18-8 Series Stainless Steel

The 300 series designation contains many different compositions of alloy steel (303, 304, 305, 316, 321, 347, etc.) but the common factors among them are:

  • Their carbon content is generally held to a maximum of 0.08%
  • They (generally) have 18% chromium
  • They (generally) have 8% nickel
  • They are non-magnetic
  • They cannot be hardened by heat treatment
  • They can be hardened by cold working the material (“work hardening.”)

316 SS MSDS Sheet

316 SS Technical Data Sheet