NM01CBV2CS

The UT REFERENCE BLOCK V2, 1018 STEEL, ENGLISH, 1/2" THICK, HOLE SIZE 5MM, WITH WOOD CASE by Curtis is a fundamental calibration and reference standard utilized in ultrasonic testing (UT) procedures. This block adheres to the widely recognized V2 configuration (also known as an IIW Type 2 Block or Miniature Angle Beam Block) and is meticulously manufactured to specific material and dimensional requirements.

Key Attributes:

• Standardized V2 Configuration: This reference block conforms to the geometric design of a V2 block, a standard recognized in the field of ultrasonic testing for its versatility in calibrating angle beam transducers.

• Controlled Material Composition: Fabricated from 1018 steel, a common and well-characterized low-carbon steel alloy. This specific material grade is chosen for its consistent acoustic velocity and minimal internal discontinuities, ensuring reliable and repeatable calibration results.  

• English Unit Specifications: The block's dimensions and features are manufactured according to English units of measurement, making it suitable for use with UT equipment and procedures that follow this system of measurement.

• Defined Thickness: The block has a precise thickness of 1/2 inch (0.500"). This dimension is critical for establishing accurate time-of-flight measurements and for performing distance calibration of ultrasonic instruments.

• Artificial Calibration Reflector: Incorporated within the block is a precisely drilled through-hole with a diameter of 5 mm. This artificial reflector serves as a known and consistent target for sensitivity checks, beam profiling, and overall system performance verification.

• Protective Storage Case: The reference block is supplied with a durable wood case. This case provides essential protection against physical damage, corrosion, and environmental factors that could compromise the block's accuracy and longevity. Proper storage in the provided case helps maintain the integrity of the calibration standard.  

• Reputable Manufacturer: Produced by Curtis Industries, a well-established and respected manufacturer of non-destructive testing (NDT) calibration blocks. Curtis is known for its commitment to quality and adherence to industry standards.  

Primary Functions in Ultrasonic Testing:

The V2 reference block is a multi-purpose tool used for several critical aspects of ultrasonic inspections, particularly those involving angle beam (shear wave) techniques:

• Angle Beam Transducer Calibration: It is primarily employed for the essential task of calibrating angle beam transducers, ensuring accurate measurements during flaw detection and sizing.

• Refracted Beam Angle Verification: The block's design facilitates the verification of the actual refracted shear wave angle produced by a transducer and wedge combination.

• Transducer Index Point Determination: It aids in accurately locating the index point (sound beam exit point) of an angle beam transducer on its wedge, a crucial parameter for accurate scanning and flaw location.

• Ultrasonic Instrument Distance Calibration: The block's known dimensions are used to establish the correct time base or distance calibration on the ultrasonic flaw detector, ensuring accurate depth and position measurements of detected reflectors.

• System Sensitivity Assessment: The 5 mm drilled hole provides a consistent reflector for evaluating the overall sensitivity and performance of the ultrasonic testing system (transducer, instrument, and accessories).