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  1. 4848

    tank

    i have a question for answer: whats your reference standard for design of storage tank? ....
  2. 4848

    Hydrogen Control in SMAW

    Hi thien2002, answer of first question: 1-d is correct answer. Basic electrodes (accordance AWS A5.1 and A5.5) are low hydrogen electodes in all fields.For example E7018 is a basic low hydrogen electrode. (Your answer is incorrect because iron oxide electodes absorb moisture and have low...
  3. 4848

    Inconel clad, heavy wall CS piping vs welded attachments

    Hi, The best answer for this question is: You must use a inconel coupling with proper size and class.You must create a proper groove for full peneteration of weld and use nickel base electrode or filler materials. Best regards, S.M,
  4. 4848

    Hydrogen Bakeout Determination

    Hi, accordance with each standard that use for each work and each service (sour or materials that you use other) you must doing hydrogen backout or test methodes for determine sensivity to hydrogen accordance NACE. Best regards, S.M,
  5. 4848

    WPS FOR PIPING MATERIAL

    Hi, If you dont need for your application "notch toughness" test you can use from a PQR for joining these materials. For example : get one test coupon from pipe accordance ASME sec Ix. If you have a metallurgical problem in welding these materials plese write for me...
  6. 4848

    WPS FOR PIPING MATERIAL

    hi for this question i need these information: 1-What are your problems in welding of pipes and flanges? 2-What is the p.no and group.no of materials that you use? best regards, S.Moeinifar

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