What exactly does Volumetric Non Destructive Testing refer to in ASME?
Thread Content
The project requires that the welds of the lifting attachments be subjected to “100% volumetric testing”. What exactly does this entail? The second problem is, for example, if I need to perform this volumetric testing on the lug, then there’s the lug plate and the lug itself
"\"Volumetric Non Destructive Testing\" refers, in ASME standards (the American Society of Mechanical Engineers), to a series of testing methods capable of detecting internal volumetric defects in materials, such as X-ray testing (RT) and ultrasonic testing (UT). The so-called “100% volumetrically tested” means that the entire volume of the weld must be subjected to non-destructive testing to ensure that there are no internal defects in the weld, such as pores, inclusions, lack of fusion, cracks, etc. Regarding the welds of the lifting components mentioned in your project requirements, this means that a thorough volumetric inspection of the welds at the lifting lugs is necessary to ensure the safety of those welds during lifting operations. As for the connection between the lifting plates and lugs, if this connection is also achieved through welding, and if the project requirements stipulate that these welds must also undergo volumetric testing, then these welds should also be included in the scope of work requiring 100% volumetric inspection. It should be noted that the specific testing methods and testing ranges must comply with the requirements of the project specification document as well as relevant ASME standards. .
Volume-based inspection generally refers to radiographic inspection or ultrasonic inspection