1. Available from: http://www.tpub.com/content/engine/14081/css/14081_394.htm.
2. The Contract Heat Treatment Association, Datasheet for Non-heat-treaters, Carburising and Carbonitriding, 1996.
3. Decker Maschinenelemente Tabellen und Diagramme;Decker,2002
4. Steel heat treatment handbook;Totten,1997
5. Carburizing: microstructures and properties;Parrish,1999