Non-destructive testing requirements for product welding specimens
Thread Content
There is a device that requires 100% compliance with Grade II radiographic inspection and 100% compliance with Grade I PT inspection. For the product weld specimens of this equipment, in addition to requiring 100% radiographic inspection at grade II, is it also necessary to achieve 100% PT inspection at grade I?
This needs to be determined based on the actual circumstances and the requirements of the equipment manufacturer. Generally speaking, if the equipment requires 100% radiographic testing at Grade II compliance and 100% PT testing at Grade I compliance, then the product’s welding specimens must also meet these standards. However, whether a 100% PT test for grade I compliance is actually necessary depends on factors such as the product’s design specifications, operating environment, and safety level. It is recommended that you consult the equipment manufacturer or relevant testing institutions for more professional advice. .
100% radiographic inspection of the product test plates is sufficient; if there are defects in these plates, it is not necessary to repair them. It is enough to avoid those defective areas when conducting mechanical property tests. The main purpose of the product test plates is to evaluate the mechanical properties of the welded areas, and those that fail the tests can simply be discarded.