What is the difference in hydrogen embrittlement between 1.25Cr-0.5Mo-Si and 2 1/4Cr-1Mo materials?
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The materials used for the hydrogen-handling reactors in these units are 1.25Cr-0.5Mo-Si and 2 1/4Cr-1Mo. For the reactors made of 2 1/4Cr-1Mo material, it is specified that the temperature must be raised to 150°C before increasing the pressure to 0.65 MPa, in order to prevent hydrogen embrittlement under high-pressure and low-temperature hydrogen environments; no such requirements have been found for reactors made of 1.25Cr-0.5Mo-Si material. Does this material also need to be heated up before stepping up the voltage?
Check the material requirements specified in the patent holder’s documentation, as well as those set by the equipment manufacturers