1.4571 (316Ti)

A chromium-nickel-molybdenum-titanium austenitic stainless steel.

Grade 316 is an austenitic grade second only to 304 in commercial importance. 316 stainless steel contains an addition of molybdenum that gives it improved corrosion resistance. This is particularly apparent for pitting and crevice corrosion in chloride environments.

For elevated temperature applications the stabilised grade 316Ti stainless steel should be employed.

Stainless steel grade 316Ti contains a small amount of titanium. Titanium content is typically only around 0.5%. The titanium atoms stabilise the structure of the 316 at temperatures over 800°C. This prevents carbide precipitation at the grain boundaries and protects the metal from corrosion. The main advantage of 316Ti is that it can be held at higher temperatures for a longer period without sensitisation (precipitation) occurring. 316Ti retains physical and mechanical properties similar to standard grades of 316.

Property data given in this document is typical for bar products covered by EN standards. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.


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Related Specifications

Stainless steel grade 1.4571/316Ti also corresponds to the following designations but may not be a direct equivalent:

  • UNS S31625
  • 320S31

Properties

Chemical Composition

Applications

  • Food processing equipment
  • Brewery equipment
  • Chemical and petrochemical equipment
  • Laboratory benches & equipment
  • Coastal architectural panelling
  • Coastal balustrading
  • Boat fittings
  • Chemical transportation containers
  • Heat exchangers
  • Mining screens
  • Nuts and bolts
  • Springs
  • Medical implants

Characteristics

  • Held at higher temperatures for a longer period without precipitation occuring
  • Excellent corrosion resistance when exposed to a range of corrosive environments and media
  • Good machinability
  • Excellent weldability

Additional Information

Weldability

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