Reliability Estimation of the Austenitic Steels Welded Joints
Keywords:welded joints, austenitic steels.
The reliability of the welded joints of high-temperature (oxidation-resistant) and heat resistant (to 1100 °С) austenitic
steel 20Х23H18 (Х20CrNi23-18, EN 10028-7 ) by the executed manual arc welding (111 EN 24063) by the coated
electrodes of different classes was evaluated. It is proposed the method of evaluating the reliability of the welded joints
by using maximum hardness of the weld material and near-weld zone and the plasticity of structure. It is known that
when the connections are being investigated, the smallest reliability have connections that were welded by copper (UTP-
34N) electrodes, and greatest – by austenitic (UTP-068HH) and austenite-ferrite (UTP-65D) electrodes
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