Manufacturing of pressure vessel equipment: Can the weld joint formed by welding 20# seamless steel pipe Φ57×6 to the cylinder made of Q345R Φ2000×18 be subjected to magnetic particle testing in accordance with NB/T47013.4-2015?
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Manufacturing of pressure vessel equipment: Can the weld joint formed by welding 20# seamless steel pipe Φ57×6 to the cylinder made of Q345R Φ2000×18 be subjected to magnetic particle testing in accordance with NB/T47013.4-2015?
GB/T150.3-2024 8.3.2 Reinforcement structure types 8.3.2.1 Reinforcement with rings The welded structure of the reinforcement rings with the nozzles and shell shall comply with Appendix D and NB/T11025. When using this structure for reinforcement, the following requirements shall be met: a) The minimum standard tensile strength value Rm of low-alloy steel
Magnetic particle testing should meet standard requirements.
Whether it can be done depends on the equipment and processes; you need to discuss this with the flaw detection personnel at your company.
Magnetic particle testing can be carried out; for Class D welded joints, compliance with GB150 is sufficient
It seems that magnetic particle testing may not be necessary; if the drawings require it, then it should be carried out according to those requirements
It is possible to do it, but the diameter of the pipe to be taken over is too small, making the process very complicated; therefore, penetrant testing is generally used instead.
Magnetic particle testing is not very useful for small connections below DN150; it’s better to use PT instead