ASME Type Phased Array Pipe Calibration Block (Metric Version) ASME SA517

Ready to request a quote for some blocks? Here's what we need... What is the pipe material? What is the pipe NPS / OD size? What is the pipe schedule / wall thickness? Is NDE FLAW supplying the material or will it be customer supplied? Are there any changes or modifications requested to our block design? Drop us an e-mail with the above information.

These pipe calibration blocks are specially designed to facilitate phased array UT (PAUT). The NDE FLAW block design includes various modifications to the original ASME design, including extra axial and arc length, a rearranged notch layout and a 10° angled cut on one end for blocks over 127mm NPS. These modifications help to minimize unwanted "noise" from the back wall while performing DAC/TCG calibrations with phased array UT equipment. A calibration block should be a section of pipe of the same nominal size, schedule, and heat treatment and material specifications as the material being examined. We maintain a large inventory of raw material for the machining of these standards and they can be made from customer supplied material as well. The Phased Array Pipe Calibration Block contains 4 EDM notches (axial and circumferential on both OD and ID) at a depth of 8-11% of nominal wall thickness x 6.35mm maximum width (most notches are approximately 0.76mm – 1mm wide) x 25mm minimum length. Blocks 127mm NPS and smaller are left at 360°, while blocks over 127mm are milled to a 180°/120°/90°/60° arc section (depending on nominal pipe size). All blocks are 305mm in axial length minimum or 10T, whichever is greater. Made in accordance with ASME Section V Article 4 Figure T-43.3, with PAUT modification for PAUT.

MATERIAL: ASME SA517, NOTE: For special alloy request by mail.