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  1. doggie87

    UHA-51(c) Impact Test Requirement for Thermally Treated Stainless Steel

    Hi All, I have a question regarding the impact test requirement for austenitic stainless steel material, 321H and 304H. Due to the high design temperature requirement, those materials are chosen, as high carbon content will provide high strength characteristic. The pressure vessel will be...
  2. doggie87

    Reason for difference of max. service temperature for SS316 & SS316L according to ASME II

    Thanks for the explanation. SS 316 L material is chosen for a max service temperature condition beyond the allowable value to ASME II (454 C). Note that the material purchase is based on ASME II specification although the material is used for the structure part and NOT for the pressure part...
  3. doggie87

    Reason for difference of max. service temperature for SS316 & SS316L according to ASME II

    Checking the max. allowable service temperature for SA 240 TP316L and SA 240 TP316 on ASME II. And, quite surprising that 316 L has max. service temperature of 454 C (850 F) while 316 has max. service temperature of 816 C (1500 F). The main difference of 316 L and 316 is the carbon...

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