Standard Reference Radiographs of Investment Steel Castings for Aerospace Applications
< div class=" SectionLevel2" > < p class=" subsec1 cdone2" > < span class=" Head3 cdone" > 1.1< / span> The reference radiographs provided in the adjunct to this standard illustrate various types and degrees of discontinuities occurring in thin-wall steel investment castings.< span style=" font-style:normal " > < span class=" footnote-link" > 2< / span> < / span> Use of this standard for the specification or grading of castings requires procurement of the adjunct reference radiographs which illustrate the discontinuity types and severity levels. They are intended to provide the following:
< span class=" note cdone" style=" text-transform: uppercase " > Note 1:< / span> < span class=" note cdone" > The set of reference radiographs, produced with X-rays in the range from 130 to 250 kVp, consist of 16 plates (81/ < sub> 2< / sub> by 11 in. (216 by 279 mm)) in a 93/ < sub> 4< / sub> by 111/ < sub> 2< / sub> in. (248 by 292 mm) ring binder.< / span>
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