Ferritics properties

Greater thermal conductivity

Very useful, particularly in all cooking utensils, the thermal conductivity of the ferritic steels in the KARA range is substantially greater than that of other, nickel– or manganese-bearing, stainless steels.

  Austenitic
Stainless Steel 18-9E
Ferritic Stainless Steel K30
Thermal conductivity
(w/m°C)
15 18



It enables better heat distribution across the entire heated surface.

Greater heat resistance

Due to their low expansion at high temperature, the ferritic steels in our KARA range constitute a material of choice for equipment that is subject to high amplitude temperature cycles: oven walls, cookers, burners and hotplates…

Greater heat resistance

Greater resistance to oxidation

1.Heating 900°C
When heating austenitic up to 900°C, steel grows more than oxide, which cracks.
For ferritics, oxide and steel grow at the same rate without cracking.

2. Temperature stabilization
For austenitic stainless steel, the new exposed zones oxidize again and a second oxide layer is created.
For ferritics, the oxide does not crack and thus there is no new oxidation.

3. Cooling
With austenitics, the steel contraction is stronger than the oxide.
For ferritics, we see the opposite of heating phenomenon.

Greater resistance to oxidation