These grades have excellent strength and creep resistance at high temperatures. They offer better resistance to oxidizing or reducing atmospheres depending on their chemistry balance.
|Representative Alloys||HK40, HT|
|Applications||For high strength and corrosion resistance at temperatures above 1200 F|
|Limitations||Exposure to service conditions may degrade room temperature ductility and weldability; cannot be hardened|
|Typical Uses||Petrochemical refining, heat treatment furnaces|
|Machinability||Fair. Slow feeds and deep cuts recommended|
|Weldability||Shielded metal arc welding (SMAW) produces good results|
|Corrosion Resistance||Superior resistance to air, combustion gases, flue gases (reducing and oxidizing) and steam|