316 Stainless

1.4401 / 316 grade is a 17% chromium 12% nickel austenitic stainless steel. The general corrosion resistance is very good and better than the 304 grade, but a 2% molybdenum addition also enhances the pitting and crevice corrosion resistance in chloride and halide containing environments. Sometimes referred to as “marine grade stainless steel” the 1.4401 / 316 actually does not offer a good resistance to warm seawater.

Generally supplied in the annealed condition this grade can be formed by rolling, stamping, drawing and heading, with any hot working to be carried out between 1149-1260°C. It can also be joined by most standard welding techniques using matching welding rods. A stress relief anneal is recommended to combat internal stresses following cold working or to restore the corrosion resistance after welding.

Chemical Composition

Related Specifications

Key Features

• Enhanced corrosion resistance

• Good mechanical strength and toughness

• Excellent formability

Typical Physical Properties

Fabrication Properties

Typical Applications

1.4401 / 316 stainless was initially developed for use in the paper mills but has now established itself in food processing equipment, brewery equipment, chemical and petrochemical equipment, laboratory benches & equipment, architectural panelling, coastal balustrades, boat fittings and chemical transportation containers.

This technical information is given by Holme Dodsworth Metals without charge and the user shall employ such information at their own discretion and risk. For more detailed technical advice on temper selection, fabrication, joining, machining, physical and mechanical data please contact us as space does not permit the listing of every feature of the material.