Research Regarding Heat Treatment Influence on Properties of Chromic Steel 40H GOST 4543-71(DIN 41Cr4, Gb 40Cr, ASTM 5140) with Quenching in Polymer Solution with Purpose of Matching Tubing Pipes which Used in Oil and Gas Extraction

Abstract:

According to GOST 4543-71, steel 40H refers to the group of chromium steels. It is a low-alloy constructional steel of pearlite class. The paper presents a theoretical and experimental research activity carried out in order to improve the properties of the 40H steel. The results permit the selection of the right heat-treatment parameters that offer the best combination between the yield strength, tensile strength, elongation, necking, impact strength at low temperature and hardness, in order to obtain a better behavior of the material for production tubing pipes in accordance with GOST 633 Tubing pipes and couplings for them, for strength group M and L.

• Periodical: Solid State Phenomena (Volume 284)
• Pages: 402-407
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.284.402
• Online since: October 2018
• Authors: S.N. Dzhabbarov*, E.I. Pryakhin, A.A. Germanov
• Keywords: Heat-Treatment, Oil Extraction, Quenching, Steel, Tubing Pipes

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