NM01PXWTOFISSI1245
The Sonatest ST Steel TOFD Wedge M12, 45° Irrigated, De-mountable is a precision accessory designed for Time-of-Flight Diffraction (TOFD) ultrasonic testing. This wedge serves as the crucial interface between a TOFD transducer and the test piece, ensuring the correct angle of sound propagation for accurate defect detection and sizing in steel components.
Key Features & Benefits:
TOFD (Time-of-Flight Diffraction) Application: Specifically engineered for the TOFD inspection technique, which relies on diffracted ultrasonic signals from flaw tips to accurately locate and size defects, particularly in welds.
Stainless Steel Construction: The "ST Steel" likely refers to Stainless Steel as the wedge material (e.g., Sonatest's WTOF-SSI series). Stainless steel offers excellent durability, corrosion resistance, and good acoustic coupling properties, making it ideal for harsh industrial environments and consistent performance on steel substrates.
45° Refracted Angle: This wedge is precisely angled to generate a 45-degree refracted longitudinal wave within the steel test material. This is a common and effective angle for TOFD inspections, especially for detecting and sizing flaws in weldments and thick sections.
Irrigated Design: The "Irrigated" feature means the wedge incorporates an internal channel or port for the continuous delivery of ultrasonic couplant to the interface between the wedge and the test piece. This ensures consistent acoustic coupling during scanning, which is vital for maintaining signal quality and accurate data acquisition.
De-mountable Transducer: The "De-mountable" design allows ultrasonic TOFD transducers to be easily attached to and removed from the wedge. This provides significant flexibility, enabling operators to swap transducers (e.g., for different frequencies or element sizes) without needing a new wedge. It also simplifies maintenance and reduces overall equipment costs.
M12 Thread: The "M12" signifies an M12-threaded mounting hole for the transducer. This is a common standard in NDT, ensuring compatibility with a wide range of Sonatest (and other manufacturers') TOFD transducers that feature an M12 male thread (e.g., Sonatest's CDTOF and DTOF series probes often come with M12 thread options).
High Precision: The manufacturing precision of the wedge is critical for consistent refracted angles and reliable TOFD data, ensuring accurate flaw sizing.
Sonatest Quality: Manufactured by Sonatest, a reputable global leader in Non-Destructive Testing (NDT) equipment, ensuring high quality, performance, and compatibility with their ultrasonic flaw detectors.
Specifications:
Manufacturer: Sonatest
Type: TOFD Ultrasonic Wedge
Model Designation: ST Steel TOFD Wedge M12, 45° (Likely corresponding to a Sonatest WTOF-SSI12/45 or similar model in their stainless steel TOFD wedge range).
Material: Stainless Steel (as implied by "ST Steel")
Refracted Angle (in Steel): 45 degrees
Transducer Mounting: M12 Thread
Couplant Delivery: Irrigated (internal couplant channel)
Transducer Compatibility: De-mountable, compatible with Sonatest M12-threaded TOFD transducers (e.g., 6mm M12 TOFD transducers in 2MHz, 3.5MHz, 5MHz, 7.5MHz, 10MHz, 15MHz from Sonatest's CDTOF or DTOF lines).
Typical Dimensions (W x L): Approx. 40mm x 20mm (1.575" x 0.787") (as per general Sonatest stainless steel M12 wedges)
Maximum Operating Temperature: Standard wedges typically 10°C to 50°C (High-temperature versions up to 200°C may be available).
Typical Applications:
Weld Inspection: Primary application for detecting and sizing welding defects such as lack of fusion, cracks, and slag inclusions.
Crack Sizing: Accurate measurement of crack height and through-wall extent in various components.
Corrosion Mapping: Can be integrated into systems for detecting and characterizing corrosion, especially in piping and pressure vessels.
General Component Inspection: Used for flaw detection and sizing in plates, pipes, castings, and forgings in industries like oil & gas, power generation, aerospace, and construction.