[en] Titanium is one of the possible canister materials for spent nuclear fuel. The aim of this study is to determine whether the hydrogen embrittlement of titanium could be a possible deterioration mechanism of titanium canisters. This experimental study is a continuation of the literature review made earlier. According to the literature study, mechanical properties of titanium are not much affected by hydrogen when tested by smooth specimens. The experimental results of this study carried out with hydrogen charged specimens support this conclusion. The studied hydrogen contents were as received, 100 ppm, 200 ppm, 500 ppm and 700 ppm and the studied titanium specimens were os ASTM Grades 2 and 12. Test methods were slow strain rate test and constant load test. Hydrogen embrittlement of titanium occurs with slow strain rates or as a sustained load cracking. Even though the mechanical properties of titanium specimens were not much affected by hydrogen, the narrow brittle zone on the fracture surfaces widens with the slow strain rates and in long constant load tests this effect was most clear. More data- and experimental results are, however, needed in order to determine the effects of hydrogen on titanium canister