Forging flanges for pressure vessels. What items are required to be tested routinely?
Generally ut inspection, inspection standards and acceptance standards can be seen, JB4726, JB4727, JB4728, these three standards are used for Pressure Vessel Forgings standards.
According to the corresponding flange standard requirements for testing: material, mechanical properties, cracks, slag inclusion, shape error, dimensional error, roughness and so on.
Sampling inspection of secondary forgingSample inspection of grade III and IV forgings.Ultrasonic testing of the internal defects of forgings, the quality level of ultrasonic testing of forgings is stipulated in JB/T47008-47010-2010.Ultrasonic testing shall be carried out according to JB/T4730.3.
