Conclusions
Under optimal conditions, steel 30N9K4 has the same toughness as steel 18Kh2N4VA and a higher strength (20kg/mm2 higher).
The combination of mechanical properties is the same for steel 30N9K4 as for maraging steel N18 K8M3T, although it contains only half as much nickel and cobalt.
Similar content being viewed by others
Literature cited
A. D. Heinz and S. D. Matas, "Maraging steels, protection of the surface and surface defects," in: High-Alloy Steels [Russian translation], Metallurgiya, Moscow (1969) pp. 257–287.
J. Pascover, S. Matas, and W. Barclay, Sixth Nat. Sympos. Mater. Space Vehicle Use, Seattle, 1963, Vol. 2, pp. 1–28.
J. Pascover and S. Matas, ASTM Special Technical Publications, No. 370 (1965), pp. 30–44.
S. Matas, Metals Engng. Quart. ASM,5, 48–57 (1964).
Hamnet P. Munger, Nucl. Eng. and Design,11, 3, 447–456 (1966).
E. Gott, M. Lunch, and M. Jacols, Metal Progress,93, 3, 95–99 (1968).
S. Matas, M. Hill, and H. Munger, Metals Engng. Quart. 8, 7–17 (1963).
A. P. Gulyaev, V. N. Zikeev, and O. N. Meshcherinova, "Effect of carbon content on cold brittleness of structural steels,", in: Special Steels and Alloys [in Russian], Transactions of the Central Scientific-Research Institute of Ferrous Metallurgy No. 46, Metallurgiya, Moscow (1966), pp. 170–175.
A. P. Gulyaev, V. D. Zelenova, and I. V. Shermazan, "Determining the cold brittleness threshold by the microfractographic method,", Zavod. Lab., 7, 870–872 (1966).
V. D. Zelenova and I. V. Shermazan, "Electron microscopic method for quantitative determination of the ductile components in fractures,", Zavod. Lab.,38, 12, 1477–1480 (1972).
Additional information
Central Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 38–41, January, 1974.
Rights and permissions
About this article
Cite this article
Gulyaev, A.P., Zikeev, V.N. & Guseinov, R.K. Mechanical pro perties of high-strength steels. Met Sci Heat Treat 16, 38–40 (1974). https://doi.org/10.1007/BF00679199
Issue Date:
DOI: https://doi.org/10.1007/BF00679199