


NM01SNW6270
WEDGE, SNAIL SHEAR WAVE, .625" X .625" 70 DEG, MODEL SNW6270, DAKOTA NDT
The DAKOTA NDT SNW6270 Snail Shear Wave Wedge is a precisely designed angle beam wedge specifically engineered for use with standard .625" x .625" shear wave transducers. This wedge provides a refracted shear wave angle of 70 degrees within the test material (typically calibrated for steel; the exact angle may vary slightly depending on the material's acoustic velocity).
The "Snail" style of this wedge, also often referred to as an AWS (American Welding Society) type wedge, is a common and reliable design used extensively in weld inspection and other angle beam applications. Its shape is optimized for stable coupling and effective transmission of the ultrasonic beam at the desired angle.
When paired with a compatible .625" x .625" shear wave transducer and appropriate ultrasonic couplant, the SNW6270 wedge enables the generation of a 70-degree shear wave, which is highly effective for detecting various types of subsurface flaws, including those oriented at angles to the inspection surface, such as sidewall lack of fusion, incomplete penetration, and transverse cracks in welds.
Manufactured by Dakota NDT, a trusted leader in ultrasonic testing equipment and accessories, this wedge is built to ensure reliable acoustic coupling and consistent performance for accurate and dependable inspection results.
Key Selling Points:
Precise 70-Degree Shear Wave Angle: A standard and effective angle for many weld inspection applications.
"Snail" (AWS Type) Design: Ensures stable coupling and reliable beam transmission.
Optimized for .625" x .625" Transducers: Provides a perfect fit for common shear wave probes.
Durable Construction: Built to withstand demanding inspection environments.
Reliable Dakota NDT Quality: Ensures consistent and dependable performance.
Benefits:
Enhanced Flaw Detection Capabilities: Achieve accurate and reliable detection of subsurface discontinuities at a critical inspection angle.
Stable and Consistent Coupling: The snail design ensures good contact with the test surface.
Versatile Application: Suitable for a wide range of materials and weld configurations.
Reliable Performance: Dakota NDT is a trusted name in ultrasonic testing accessories.
Easy Integration: Designed for seamless use with compatible transducers and flaw detectors.
Applications:
General weld inspection across various industries.
Detection and sizing of flaws such as cracks, lack of fusion, and porosity in welds.
Inspection of pipes, pressure vessels, and structural components.
Quality control in manufacturing and fabrication processes requiring angle beam techniques.
The DAKOTA NDT Snail Shear Wave Wedge, .625" x .625" 70 Degree, Model SNW6270 is an essential accessory for NDT professionals utilizing standard shear wave transducers for angle beam inspections, providing the precise angle and reliable performance needed for accurate and productive ultrasonic testing, particularly in weld examination according to common industry practices.