NDT Testing Methods of Welds




There are Numerous Non-Destructive tests used to evaluate the base metal to be joined as well as completed welds. However these all NDT shares several common elements, these essential elements are summarized below:

A Source of Probing energy or Medium

A Discontinuity must cause change or alteration of probing energy

A means of detecting this change

A means of indicating this change

A means of observing or recording this indication so that an interpretation can make
Over the years Numerous Non-Destructive Testing Methods have been developed, each one has associated with its various advantage & Limitations.

Followings are the Noted NDT Methods

Visual Testing (VT)

Penetrant Test (PT)

Magnetic Particle Test (MT)

Radiographic Test (RT)

Ultrasonic Test (UT)


Eddy Current Test (ET)

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