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Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

(OP)
My Questions are:

1) Is stress relieving "necessary" on Boilers and Pressure vessels between thickness (10-20 mm) for Operating Pressure of 10 Bars under new ASME Code?

2) Is Radiography required for above said thicknesses if weld efficiency is reduced to 90% ?

Thanks!

RE: Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

Your question cannot be answered as stated. You need background information as to material and application. Boilers are in a different code book section in comparison to pressure vessels.

RE: Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

(OP)
Ok if I say. A WHRB boiler having capacity of 1000 kg/hr steam operating pressure is 10 bar manufactured on ASME Sec 1
Material is SA516 Gr70 for the shell and tube sheets.
Smoke tubes are SA 106 Gr B

RE: Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

Please read the code for your answers.

RE: Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

These answers are found in ASME Section I; PW-11 for volumetric examination requirements and PW-39 for post weld heat treatment requirements.

RE: Stress Relieving and Radiographic Testing Requirement on Boiler and Pressure Vessel

(OP)
Ok thanks. I will review it.

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