Font Size: 

The purpose of this paper is to present the results of structuraland mechanical investigations of A508.3 and 10H2M steels saturated withhydrogen. The influence of hydrogen concentration on the mechanicalbehaviour of a material during destruction in a static tensile test is discussed.The results of investigations of J-R resistance curves of 10H2M steel arepresented. An attempt has been undertaken to correlate geometrical featuresof the so called “fish eyes” with crack resistance of the investigatedmaterials.