This practice covers techniques for the ultrasonic A-scan examination of specific weld configurations joining wrought ferrous or aluminium alloy materials to detect weld discontinuities (This practice is based on experience with ferrous and aluminium alloys. Other metallic materials can be examined using this practice provided reference standards can be developed that demonstrate that the particular material and weld can be successfully penetrated by an ultrasonic beam).
The reflection method using pulsed waves is specified. Manual techniques are described employing contact of the search unit through a couplant film or water column.
This practice utilizes angle beams or straight beams, or both, depending upon the specific weld configurations.
Practices for special geometries such as filler welds and spot welds are not included. The practice is intended to be used on thicknesses of 0.250 to 8 in. (6.4 to 203mm).
Values stated in inch-pound units are to be regarded as the standard. SI units are given for information only.
For additional pertinent information see practice E 317, Terminology, E 1316, and E 587.
This standard does not purport to address all of the safety concerns, if any, associate with its use.
It is the responsability of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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