NB/T 47013.12-2015 (English Version) PDF

Scope: This part of NB/T 47013 specifies the magnetic flux leakage testing and result evaluation methods for pressure-bearing equipment, seamless steel pipes and welded pipes (except submerged arc welding) made of ferromagnetic materials. This section is suitable for magnetic flux leakage detection of corrosion and mechanical damage on the internal and external surfaces of coated or uncoated ferromagnetic material pressure-bearing equipment and component base materials. The thickness of the inspected workpiece generally does not exceed 30mm. , the diameter of the pipe fitting shall not be less than 9mm. Please refer to this section for crack detection of pressure equipment and magnetic leakage detection of normal pressure storage tanks.

NB/T 47013.12-2015 Referenced Document

GB/T 12604.5 Non-destructive testing—Terminology—Magnetic particle testing*， 2020-11-19 Update
GB/T 12604.6 Non-destructive testing—Terminology—Eddy current testing*， 2021-05-21 Update
GB/T 12606 Full-circumference automatic magnetic flux leakage testing of seamless and welded (except submerged arc welded) ferromagnetic steel pipes for longitudinal and/or transverse imperfections*， 2021-12-01 Update
GB/T 20737 Non-destructive testing-General terms and definitions
GB/T 27699 Technical specifications for internal inspection of steel pipelines*， 2023-05-23 Update
NB/T 47013.1 Nondestructive testing of pressure equipments.Part 1: General requirements
NB/T 47013.3 Nondestructive testing of pressure equipments.Part 3: Ultrasonic testing

2015 NB/T 47013.12-2015 Nondestructive testing of pressure equipment.Part 1 2: Magnetic flux leakage testing