Dear Mr. Jamie,
ASME B31.3 is applied.
Service for Ammonia Liquid Design Temp from -35 to 70 degree C. I am not sure about whether lethal but it's a dangerous service.
Thank you for your help.
Best regards
Vào Th 5, 17 thg 12, 2020 vào lúc 11:55 Jamie Reyes <jamiejrmachineco@gmail.com> đã viết:
What is the code of construction?What is the type of service?Is Lethal Services involved?Need the above mentioned information.....Regards,Jamie ReyesJ.R. Machine Company, Inc.--On Wed, Dec 16, 2020 at 7:47 PM thanh tung Nguyen <tungexp.268@gmail.com> wrote:Dear Experts,--Hope you all are well.I have a question is about the weld of the base material of CS (or Low temp. CS) with wall thickness greater than 25mm, Do we still required PWHT if we applied a preheating process before, or PWHT is no longer mandatory?And which reference can be found?Thank you & best regards./.
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