High strength metal alloys are described herein. At least one composition of a metal alloy includes chromium, nickel, copper, manganese, silicon, niobium, tungsten and iron. System, methods, and heaters that include the high strength metal alloys are described herein. At least one heater system may include...http://www.google.de/patents/US20080038144?utm_source=gb-gplus-sharePatent US20080038144 - High strength alloys
