NM01PAUTASMEPIPE4343

The PH Tool ASME Angle Beam Calibration Block for PAUT is a precision-engineered reference standard specifically designed for calibrating Phased Array Ultrasonic Testing (PAUT) equipment for angle beam inspections on pipe materials. Manufactured from A106B Carbon Steel, a common material specification for piping, this block adheres to the dimensional requirements outlined in ASME Section V, Article 4, Figure T-434.3, with critical modifications implemented by PH Tool to optimize its performance for PAUT applications.

This particular block is configured as a 12” Nominal Pipe Size (NPS), featuring an Outside Diameter (OD) of 12.750 inches and a Wall Thickness (WT) of 1.75 inches. The block is machined to a 120° arc segment with a 17.5-inch length, providing ample surface area for calibration scans.

Key Features Designed for PAUT:

• Modified ASME Design: Incorporates PH Tool's specialized modifications to the standard ASME configuration, specifically tailored to enhance PAUT calibration accuracy and minimize unwanted back wall reflections. These modifications often include adjusted notch layouts and end cuts to optimize phased array beam behavior.  

• Representative Pipe Geometry: Machined from a section of pipe with the specified nominal size, outside diameter, and wall thickness, ensuring acoustic similarity to the components being inspected.  

• A106B Carbon Steel: Constructed from a widely used carbon steel grade for piping systems, providing relevant material properties for calibration.  

• Specific Dimensions: 12” NPS (12.750” OD) x 1.75” WT x 120° arc x 17.5” long dimensions provide a substantial and representative calibration target.

• Compliant with ASME Sec. V Art. 4, Fig. T-434.3 (with PAUT Modification): Meets the requirements of a recognized industry standard for calibration blocks, with added features beneficial for phased array UT.

Benefits for PAUT Calibration:

• Optimized for Phased Array: The PAUT-specific modifications ensure more accurate and reliable calibration for angle beam inspections using phased array technology.

• Minimized Back Wall Interference: Design enhancements reduce unwanted noise, leading to cleaner calibration signals.  

• Accurate Angle and Distance Calibration: Facilitates precise calibration of beam angles and sound path distances when using phased array probes.

• Reliable Sensitivity Calibration: Enables accurate setup of gain and sensitivity levels for phased array inspections.

• Ensures Code Compliance: Supports inspections performed in accordance with ASME Section V requirements.  

Applications:

• Calibration of Phased Array Ultrasonic Testing (PAUT) equipment for angle beam inspections.

• Verification of beam angle, index point, and wedge delay for PAUT probes on pipe materials.  

• Development of Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves using PAUT on pipe geometries.

• Training and qualification of PAUT personnel for pipe inspections.

• Quality control and assurance in the fabrication and inspection of piping systems.