NM01SN60CT

The SNAIL (AWS TYPE) WEDGES (identified by the product code SNW from manufacturer CT) are specifically designed for angle beam ultrasonic testing (UT) applications, particularly those adhering to the guidelines and recommendations often associated with the American Welding Society (AWS) standards for weld inspection. These wedges are crucial accessories that, when used in conjunction with an appropriate ultrasonic transducer, introduce a refracted sound beam into the test material at a predetermined angle.

The "Snail" designation refers to the characteristic curved or sloped front surface of the wedge. This design facilitates optimal coupling between the transducer and the test piece, ensuring efficient transmission of the ultrasonic energy at the desired angle. The "(AWS TYPE)" indicates that the geometry and performance characteristics of these wedges are aligned with the requirements commonly encountered in AWS-based ultrasonic weld examinations.

These specific SNAIL wedges have a cross-sectional size of approximately 5/8 inch by 5/8 inch at the transducer mounting interface. This dimension provides an indication of the physical size of the wedge and suggests the range of transducer sizes it is likely compatible with.

The primary function of these wedges is to generate a 60-degree refracted shear wave within the material being inspected. The 60-degree angle is a commonly utilized angle in ultrasonic weld testing, providing effective detection of various flaw orientations and depths. The wedge material and geometry are precisely engineered to convert the longitudinal wave emitted by the transducer into a shear wave that propagates at this specific refracted angle within materials with a standard ultrasonic velocity (typically steel).

The product code "(SNW)" is specific to the manufacturer, indicated as "CT." While "CT" could refer to various companies, it is plausible that it denotes Curtis Testing, a well-known supplier of non-destructive testing (NDT) equipment and accessories, or another reputable manufacturer with these initials. The specific properties and material composition of the wedge will be determined by this manufacturer.

Key Features:

• Snail Design: Curved front surface for optimal coupling and angle beam introduction.

• AWS Type: Geometry and performance aligned with AWS weld inspection guidelines.

• Refracted Angle: Designed to produce a 60-degree refracted shear wave in the test material (typically steel).

• Dimensions: Approximately 5/8" x 5/8" cross-section at the transducer mounting area.

• Manufacturer Code: Identified by the code SNW from manufacturer CT.

• Essential for Angle Beam UT: Enables the inspection of materials for flaws with orientations other than parallel to the surface.

• Crucial for Weld Inspection: Widely used for detecting defects in welded joints.

Applications:

• Ultrasonic inspection of welds in accordance with AWS standards and procedures.

• Angle beam inspection of various materials to detect subsurface discontinuities.

• Applications requiring a 60-degree refracted shear wave angle.

• Used in conjunction with ultrasonic transducers of compatible size and frequency.

This wedge is used for all 3 sizes:

• 5/8″ x 5/8″

• 5/8″ x 3/4″

• 3/4″ x 3/4″