Microstructure and Properties of Oil and Gas Range Pipe Steel Subjected to Improvement

Autor: Yu. N. Goikhenberg, L. Yu. Pyshmintsev, D. P. Uskov, A. N. Mal’tseva, M. A. Smirnov
Rok vydání: 2019
Předmět:
Zdroj: Metallurgist. 63:41-50
ISSN: 1573-8892
0026-0894
Popis: The effect of alloying on the properties of highly tempered steels used for production of a range of petroleum pipes is studied. It is shown that an increase in molybdenum content from 0.15 to 0.53% improves the mechanical characteristics of chromium-molybdenum steels tempered at 600–690°C significantly. Alloying with vanadium and niobium facilitates an additional increase in strength properties. The best hardening of steel with 0.32% molybdenum in a highly tempered condition is provided by combined microalloying with niobium and vanadium, although stress corrosion cracking resistance is reduced.
Databáze: OpenAIRE