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Production of seamless pipes grade X65 according to API 5L

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This paper presents the project, which solved development and verification of production of line pipes grade X65 PSL2 according to API 5L. The authors describe basic period of solution: design chemical composition of steel, steel making, continuous casting and line pipes production. The pipes were quenched and tempered according to requirement of specification. Final properties of line pipes (y[...]

Study of the hot forming conditions of HSLA steel on the tensile testing machine

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The aim of the conducted experimental work was to study the deformation behaviour in the hot state and causes that lead to failure of compactness of a microalloyed steel determined for the tube production. The results of the formability testing are presented, performed by measurements of the strength and plastic properties by means of the tensile test performed at the forming temperatures and d[...]

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