ASME Sec V Basic Calibration Block
Used for establishment of primary reference responses for UT examination of welds.
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Block contains three side-drilled holes at 1.5″ deep minimum at 3/32″ diameter (½” and ¾” blocks), 1/8” diameter (1½” block) and 3/16” diameter (3” block). Hole locations through the thickness are ¼, ½, and ¾T. Also contains two EDM notches measuring 2%T deep x 1/4″ max wide x 1.0″ long min. In accordance with ASME Sec V Art. 4 Fig. T-434.2.1.
ASME Basic Calibration Blocks are intended to be representative of actual components, and therefore do not have the smooth scanning surfaces found on most general-purpose test blocks like the IIW or DSC. Instead, our Basic Calibration Blocks are media blasted on all surfaces to create a rough surface texture that is more characteristic of real-world inspection conditions.
- Optional Hardwood Case available
- ½” Block Dimensions: ½” thick x 6¼” wide x 4½” long
- ¾” Block Dimensions: ¾” thick x 6¼” wide x 4½” long
- 1½” Block Dimensions: 1½” thick x 6¼” wide x 4½” long
- 3” Block Dimensions: 3″ thick x 6¼” wide x 9″ long
*Also available in long version for 60/70° transducers or phased array.
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