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  • Users: Momo1988
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  1. Momo1988

    Effect of Heating on Base metal

    Hello for all, We a problem in a pressure vessel and we solved it but i am afraid that our solution may harm the base metal of the shell. So we have a vessel with SA 516 Gr 70 material which I.D diamter is 3000 mm thk 20 and after fabricating the shell the ELL.HEAD arrived by error with I.D...
  2. Momo1988

    SS 316 vessel changes its colour to brown after Heat treatment

    Hi Everyone , After the heat treatment process of pressure vessel which shell material is SS316 as per client requirements , the colour of the plates had been converted from stainless steel known colour to brown colour which is refused from both AI inspector and client so : 1- Do you know...
  3. Momo1988

    what is the diffrence between material SA-516-GRADE 60 AND GRADE 70

    what is the diffrence between material SA-516-GRADE 60 AND GRADE 70 can i use material 516 gr 70 instead of GR 60?

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