Stainless steels are widely used in food and beverage manufacturing and processing industries for manufacture, bulk storage, and transportation, preparation and presentation applications.
Depending on the grade of stainless steel selected, they are suitable for most classes of food and beverage products. Guidelines on the Materials of Construction for Equipment in Contact with Food have been published by the European Hygiene Engineering and Design Group (EHEDG). This includes an extensive section on stainless steels. Copies of these Guidelines can be ordered from this website.
Selecting Stainless Steel for the Food Processing Industry
- Water and Steam
- Mechanical Scrubbing
- Scouring Powder and Detergents
- Alkaline Solutions
- Organic Solvents
- Nitric Acid
Typical Applications of the Various Stainless Steel Types
|Cooks and professional knives, spatulas etc|
|430 (ferritic)||Table surfaces, equipment cladding, panel (ie components requiring little
formability or weldability). Used for moderately corrosive environments
(e.g. vegetables, fruits, drinks, dry foods, etc).
|Vats, bowls, pipework, machinery parts (i.e. components requiring some
formability or weldability). Corrosion resistance superior to 430.
|316 (austenitic)||Components used with more corrosive foods (e.g. meat/blood, foods with moderate salt contents), which are frequently cleaned, with no
stationary solids and not under excessive stress.
|Used with corrosive foods (e.g. hot brine with solids that act as crevice
forms, stagnant and slow moving salty foods).
|Used with corrosive foods (e.g. hot brine with solids, stagnant and slow
moving salty foods). Higher strength than austenitics. Good resistance to
stress corrosion cracking in salt solutions at elevated temperatures.
|Used with corrosive foods (e.g. hot brine with solids, which act as
crevice formers, stagnant and slow moving salty foods). Good resistance
to stress corrosion cracking in salt solutions at elevated temperatures.
Used in steam heating and hot work circuits, hot water boilers, etc