Abstract
Safety use limit of API-13Cr steel tubular in terms of Sulfide Stress Cracking (SSC) property is studied. Since SSC is a phenomenon of hydrogen embrittlement, the hydrogen content in steel is a key factor to determine SSC susceptibility. The hydrogen content entering into steel and the critical hydrogen content of steel below which no SSC occurs were experimentally determined as a function of environmental factors and yield strength. Comparison of both values of hydrogen contents enables to estimate critical environmental conditions and yield strength. Estimation results by this method coincides well with data in several literatures.
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