INFLUENCE OF 09G2C STEEL SAMPLES ON THE MECHANICAL PROPERTIES OF PREHEATING WELDING.
Published:
2021-07-07Section:
СтатьиArticle language:
KazakhKeywords:
steel 09G2C; welder; impact viscosity; tensile strength; microstructure; mechanical engineering; sample testing.Abstract
For critical welded metal structures, high-grade rolled products made of low-carbon alloy steel 09G2S, which has the properties of high weldability, are widely used. Preheated welding is widely known, but is rarely used for joining metals of large thickness. In this article, we have revealed the advantages of welding 09G2S steel with preheating at various temperatures. Welded metal structures are used under harsh climatic conditions and therefore mechanical tests were carried out +20°C; -20°C; -60°C; The results of the study showed that the mechanical properties correspond to the standard characteristics, but with different quantitative indicators.
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