This standard specifies the general requirements for magnetic particle flaw detection of drill tool threads, magnetization methods, magnetic field strength, magnetic suspension preparation, flaw detection methods, magnetic mark evaluation and flaw detection report preparation methods. This standard is applicable to magnetic particle inspection of surface or near-surface defects in the threaded parts of ferromagnetic drilling tools used for oil and gas well drilling.
SY/T 5448-1992 history
2012SY/T 6858.3-2012 Nondestructive testing method for OCTG.Part 3:Magnetic particle testing for drilling tool thread
1992SY/T 5448-1992 Non-destructive testing method for oil well tubular
SY/T 5448-1992 Non-destructive testing method for oil well tubular was changed to SY/T 6858.3-2012 Nondestructive testing method for OCTG.Part 3:Magnetic particle testing for drilling tool thread.