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Erschienen in: Metallurgist 11-12/2023

01.05.2023

Structure and Properties of Weldable Precipitation-Hardening Steel Alloyed with Copper for High-Strength Pipeline Fittings

verfasst von: M. Yu. Matrosov, A. A. Kholodnyi, P. G. Martynov, G. E. Khadeev, M. S. Sakharov, D. I. Yusupov, M. V. Il’ichev

Erschienen in: Metallurgist | Ausgabe 11-12/2023

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Abstract

The influence of heat treatment, simulating thermal cycles and welding in the process of manufacturing joint fittings on microstructure, strengthening phase precipitation, and mechanical properties of base metal and near-weld zone of fittings, made of low-carbon copper-containing steel, is studied. Rolled product specimens are produced under laboratory and industrial conditions. Heat treatment regimes are developed, and mechanical properties of pipeline fittings of strength class K60 (X70) after normalizing with tempering and strength class K65 (X80) after additional quenching before tempering combined with satisfactory impact strength and weldability are provided.

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Metadaten
Titel
Structure and Properties of Weldable Precipitation-Hardening Steel Alloyed with Copper for High-Strength Pipeline Fittings
verfasst von
M. Yu. Matrosov
A. A. Kholodnyi
P. G. Martynov
G. E. Khadeev
M. S. Sakharov
D. I. Yusupov
M. V. Il’ichev
Publikationsdatum
01.05.2023
Verlag
Springer US
Erschienen in
Metallurgist / Ausgabe 11-12/2023
Print ISSN: 0026-0894
Elektronische ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-023-01466-8

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