Recuperator tubes in a wide range of high-temperature corrosion resistant materials suitable for flue gas temperatures up to 1300ºC (2370ºF).
The Sandvik program covers materials for most types of recuperators used for heat recovery in, for example, steel and metal processing, glass production and carbon black production.
Materials for increased heat efficiency
The Sandvik program includes several materials allowing for higher operating temperature, enabling increased heat recovery and higher efficiency. Examples are Kanthal APMT and Sandvik 253 MA*.
Savings in fuel consumption at different wastegas and air preheat temperatures
Recuperator tube materials (other grades can be offered on request)
|Sandvik grade (UNS)||Description|
|Sandvik 253 MA*
|Austenitic stainless steel alloyed with nitrogen and REM (rare earth metals). Suitable for most types of conditions.|
|Sandvik 353 MA*
|Austenitic stainless steel alloyed with nitrogen and REM (rare earth metals). Suitable for oxidizing, carburizing and nitriding conditions.|
|Ferritic stainless steel with a high chromium content (26.5%) suitable for sulphudizing conditions.|
|Austenitic stainless steel with good resistance to oxidation. Suitable for oxidizing, nitriding and carburizing conditions.|
|Ferritic iron-chromium-aluminium (FeCrAl) stainless steel with superior oxidation properties. Suitable for sulphudizing conditions in the highest temperatures.|
*253 MA and 353 MA are trademarks owned by Outokumpu OY