Heat Resisting

Heat resisting austenitic grades can be used at high temperatures. These stainless steels are also widely used at high temperature when carbon and low-alloyed steels do not provide adequate corrosion resistance and/or strength. They can be found in applications where high-temperature oxidation resistance or high-temperature strength is required.

Heat Resisting Austenitic Grades

High temperature austenitic stainless steels are designed primarily for use at temperatures exceeding 550 °C (i.e., in the temperature range where creep strength is the determining factor). The composition of these steels provide a long service life in dry gases at high temperatures (800–1150 °C), providing good resistance to oxidation rather than resistance to aqueous corrosion.

Our heat resisting grades are characterised by a high chromium (17–25 %) and high nickel (8–20 %) content with the exclusion of molybdenum. Silicon is added in some grades to increase oxidation resistance.


  • Very good mechanical strength
  • Excellent resistance to grain boundary corrosion
  • Good weldability and formability
  • Good high temperature creep strength and oxidation resistance


  • Industrial furnace and boiler components
  • Tubes and expansion bellows
  • Heat exchangers
  • Electrical heating elements
  • Annealing bells
  • Aerospace
  • Automotive (turbo parts)

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