Standard Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products

Importancia y uso:

5.1 This practice outlines a procedure for examining ferromagnetic tubular products using the flux leakage method. If properly applied, this method is capable of detecting the presence and location of significant longitudinally or transversely oriented discontinuities, such as pits, scabs, slivers, gouges, roll-ins, laps, seams, cracks, holes, and improper welds in ferromagnetic tubes under inspection. In addition, the severity of a discontinuity may be estimated and a rejection level set with respect to the magnitude of the electromagnetic indication produced by the discontinuity.

5.2 The response from natural discontinuities can be significantly different from the response for artificial discontinuities, such as drilled holes or notches of equivalent depth. For this reason, sufficient work should be done to determine the conditions necessary to detect and mark natural discontinuities whose characteristics will adversely affect the serviceability of the tube, in order to establish acceptance criteria between the supplier and purchaser.

Subcomité:

E07.07

Referida por:

A0106_A0106M-19A, A0053_A0053M-24, A0450_A0450M-25A, A0513_A0513M-25, A0587_A0587M-25, A0795_A0795M-21, A0106_A0106M-19A, A0335_A0335M-24B, A0053_A0053M-24, A0135_A0135M-21, A0053_A0053M-24, E0543-21, A1016_A1016M-24A, A0999_A0999M-23, E0543-21

Volúmen:

03.03

Número ICS:

77.040.20 (Non-destructive testing of metals), 77.140.40 (Steels with special magnetic properties)

Palabras clave:

electromagnetic (eddy current) testing; ferromagnetic; flux leakage; NDT; nondestructive testing; steel; tubular products;