1. Walker RA, Gooch TG. Arc weldability of stainless steels. Metals and Materials, January 1986;18–24.
2. Kalwa G. State of development and application technique of the steel X 20CrMoV 121, Technical publication by Mannesmann.
3. DIN 17175. Seamless tubes of heat-resistant steels, technical conditions of delivery, X 20 CrMoV 12 1, May 1979. p. 344–65.
4. Damage due to hydrogen embrittlement and stress corrosion cracking;Woodtli;Engg. Fail. Analysis,2000
5. Development trends of heat resistant steels for seamless tubes in the construction of power stations;Kalwa;VGB Kraftwertechnik,1983