Variation of the element composition of the fracture surface of 1X18H10T steel specimens in unirradiated and helium-and hydrogen-doped states during strain at 300, 600, and 800 degree C in the chamber of the special Auger-spectrometer has been investigated. It has been shown that the helium- and hydrogen-doped steel in contrast to the unirradiated state, the fracture surface is more strongly enriched with phosphorus and nickel and impoverished with respect to sulfur.