Discover the 19mm Thickness Duplex ASME UT Calibration Block, a precision tool for ultrasonic testing. Manufactured to ASME BPVC-V-2015 standards, this calibration block ensures accurate inspections for materials with surface diameters over 500mm. Ideal for non-pipe weld tests, it features precise slot dimensions and is available in various materials like carbon steel, stainless steel, and aluminum.