Analysis of experimental data on the behavior of steel S275JR – Reliability of modern design

The purpose of this paper is to present the research results concerning S275JR (1.0044) steel material behavior loaded at room and elevated temperatures as well as result analysis in relation to its possible application. In this way, the data will be added to the existing data pool of considered material so as to be more readily available to other researchers and interested parties. Tensile testing of round specimens and Charpy impact testing of single edge notch bend specimens was conducted at different temperatures. On the basis of mentioned research, the following material properties were determined: ultimate tensile strength (σm), 0.2% offset yield strength (σ0.2), modulus of elasticity (E) and Charpy impact energy (CVN). Also, short-time creep behavior was examined. Test results are presented in the form of engineering stress–strain diagrams, the curves of the temperature dependence on material properties as well as creep curves. At the end of this paper, an assessment of fracture toughness based on the Charpy impact energy is given.