ASTM-E2700 › Standard Practice for Contact Ultrasonic Testing of Welds Using Phased Arrays
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1.1 This practice describes ultrasonic techniques for inspecting welds using phased array ultrasonic methods (see ).
1.2 This practice uses angle beams, either in S-scan or E-scan modes, primarily for butt welds and Tee welds. Alternative welding techniques, such as solid state bonding (for example, friction stir welding) and fusion welding (for example, electron beam welding) can be inspected using this practice provided adequate coverage and techniques are documented and approved. Practices for specific geometries such as spot welds are not included. The practice is intended to be used on thicknesses of 9 to 200 mm (0.375 to 8 in.). Greater and lesser thicknesses may be tested using this standard practice if the technique can be demonstrated to provide adequate detection on mockups of the same wall thickness and geometry.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Note 1: This practice is based on experience with ferrous and aluminum 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.
Note 2: For additional pertinent information, see Practices , , and .
nondestructive testing; phased arrays; phased array probe; ultrasonic contact examination; ultrasonic NDT of welds; welds; ICS Number Code 25.160.40 (Welding joints and welds)
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Oct. 15, 2014