ASME Basic Cal Block 0.5-in. 0.75-in 1.5in 3in 5in Thick

Used for establishment of primary reference responses for UT examination of welds.Block contains three side-drilled holes at 1.5 deep minimum at 3/32 diameter. 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.Dimensions: ½ thick x 6¼ wide x 6.0 long Fitted wooden storage case optional...see above. Alloy: Required A516-70 Steel, Bare 7075-T6 Aluminum, Bare Type 304 Stainless Steel