Conclusions
-
1.
When steels intended for welded structures are alloyed with carbon, silicon, and manganese, it is indispensable that the values of the carbon equivalent do not exceed 0.57. A change of th content of C, Mn, and Si within the limits of this equivalent ensures that hot-rolled steel is obtained with tensile strength up to 600 N/mm2 without weldability being impaired.
-
2.
It is suggested to use steels St4sp and St5sp in welded structures instead of steel St3sp because they have higher strength than steel St3sp and equal resistance to cold cracking.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
É. L. Makarov, in: Cold Cracks in the Welding of Alloy Steels [in Russian], Mashinostroenie, Moscow (1981), p. 5.
A. R. Troiano, Trans. Am. Soc. for Met.,52, 54–80 (1960).
F. F. Azhogin, A. V. Sakharov, and S. S. Ivanov, "Hydrogen distribution and delayed failure of high-strength steel," Fiz.-Khim. Mekh. Mater.,15, No. 3, 35–38 (1979).
V. F. Musiyachenko and S. B. Kasatkin, "Hydrogen distribution in the welding joint of alloy steel and its effect on cold cracking," Avtomaticheskaya Svarka, No. 9, 3–8 (1985).
Yu. A. Sterenobogen and G. V. Burskii, "Method of estimating the resistance of the heat-affected zones of welded joints in high-strength steel to cold cracking," Avtomaticheskaya Svarka, No. 3, 1–5 (1987).
Additional information
I. P. Bardin Central Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 37–42, November, 1987.
Rights and permissions
About this article
Cite this article
Frantov, I.I., Stolyarov, V.I., Nazarov, A.V. et al. Optimization of the composition of weldable low-alloy steels. Met Sci Heat Treat 29, 845–851 (1987). https://doi.org/10.1007/BF00707757
Issue Date:
DOI: https://doi.org/10.1007/BF00707757