Nuclear Liquid

Technical Specifications Nuclear Liquid Penetrant (PT) Test Props

General Data Item 1 - Three Weld Plate Props

Material Type Type 304 Stainless Steel Plate, Bare Metal (un-plated and un-coated)

Material Dimensions 5.000" wide (+/- 1/2") by 7.000" long (+/-1/2") by 0.500" thick (+/-.062")

Material Surface Finish 250 RA/RHR or smoother
Plate Configuration Prop shall contain three weldments equally spaced longitudinally placed with the shortest plate dimension. The first weld shall represent an as welded root weld 3/8" (+/- 1/8") weld width with acceptable visual contour in a 90 degree included V-Groove. The second weld shall represent an as welded completed weld 3/4" (+/- 1/8") weld width with a 1/16" (+/- 1/64") reinforcement with acceptable weld contour. The third weld shall be a flush ground completed weld 3/4" (+/- 1/8") weld witdh with an acceptable visual contour. Visual condition shall meet the requirements of MIL-STD-2035A.

Weld Filler Material Weld filler material shall be Type 308 wire.

Linear Artificial Flaw Types Each weld shall contain 2 randomly located linear Nano notches, one longitudinal and one parallel to the weld length with a separation of at least 2 inches. Notch dimensions shall be .003" (+/-.001") width, .0125" (+/-.0025") depth and .375" (+/-.125") length. Notches shall be in different locations on each prop so no two props are identical.

Non-Linear Artificial Flaw Types Each weld shall contain four randomly located non-linear micro-drilled holes separated from each other by at least 1". Hole dimensions shall be .009" (+/-.001") depth and .005" (+/- .001") in diameter. Holes shall be in different locations on each prop so no two props are identical. Three of the four holes on the root weld section to be randomly placed on the un-welded beveled end prep area.

Identification Numbers Serial numbers, NSEO-1WP, NSEO-2WP, NSEO-3WP etc... applied to one edge or the reverse side of each plate with characters 5/16" (+/-1/16").

Certification Documentation Detailed drawing which include manufacturer, plate dimensions, material type and specific location and dimension of flaws for each prop with unique plate identification number.

General Data Item 2 - Storage Container

Storage container for each prop so that props may be placed flat or one container such as a Pelican box/case large enough to contain all props vertically with foam inserts to separate and protect the props. Container(s) must be water and airtight and have lockable hasp for using a padlock.

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