Inspection of steel plates for pressure vessels
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Pressure vessels – Steel plate inspection: General requirements include VI, DI, and physical and chemical material certificates. Under what NACE conditions is HIC required? And under what conditions is UT required with regard to hardness?
150 specifies that ultrasonic testing must be performed on each sheet of steel plate of a certain thickness; details can be found in the specifications
:)Having learned that, Hai Chuan still has a lot of knowledge to acquire.