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  1. Abigail_281106

    Material Selection for Double Pipe Heat Exchanger

    Hello TiCL4, Thanks for your insights ! Yes, that's the problem, we have kind of data bank, and it was said, that i can use carbon steel and stainless steel. I just do not understand, for example, at one plant, for natural gas 130 bar, 550C, they are using carbon steel. Meanwhile at other...
  2. Abigail_281106

    Material Selection for Double Pipe Heat Exchanger

    Hello @EdStainless ! Thank you so much for the technical suggestions ad information. In which case is a stainless stell required and in which case carbon steel is adequate? If i designd both pipes including inlet and outlet flanges with stainless steel, but the outer pipe (steam stream) will...
  3. Abigail_281106

    Material Selection for Double Pipe Heat Exchanger

    Hello @Luis 0707 thank you for your suggestion. So carbon steel is suitable for both natural gas and steam pipe? Ok. Noted.
  4. Abigail_281106

    Material Selection for Double Pipe Heat Exchanger

    Hello @TiCl4 ! thanks a lot for your answer and suggestions. 1. Allright i'll make the design temperature for both pipes 260C. Yes i proposed already a PSV on the stream header in case of the inner pipe break. 2. So it would be better to use the same materials for both pipes, in order to...
  5. Abigail_281106

    Material Selection for Double Pipe Heat Exchanger

    Hello Everyone, I got to design a double pipe heat exchanger, where the natural gas inside the inner pipe will be heated up by steam, which flows at outer pipe. The operation data of natural gas and steam are as follow: 1. Natural Gas (inner pipe) - maximum operating temperatur: 118C (and...

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