Metals for Furnace Components

Heat processing industries depend on materials that have strength at high temperatures. 

Irons and steels have been the workhorses for holding industrial furnace refractory structures together. Metals that are to have extended life in furnaces with temperatures in excess of 1400 F (760 C) must meet the following requirements  

Not subject to rapid oxidation (scaling, slagging). (See table 9.4.) 

Creep strength must be such that deformation will take place over an economically viable period of time when it can be repaired or replaced 

Irreversible growth (by thermal expansion, grain change, oxidation) must not exceed the tolerance of the application 

---