NM015STEP.IX

This 5-Step Block, manufactured by PH Tool, is a precision-machined calibration standard designed for verifying the thickness measurement accuracy and linearity of ultrasonic thickness gauges. It consists of five distinct steps, each with a precisely controlled thickness, allowing technicians to calibrate their instruments across a range of material thicknesses.  

The key specifications of this reference block are:

• Number of Steps: 5

• Material: Type 321 Stainless Steel. This austenitic stainless steel offers excellent corrosion resistance and is commonly used in various industrial applications. Its consistent acoustic properties make it a reliable material for calibration standards.  

• Inch Step Thicknesses: The five steps have the following nominal thicknesses in inches:

  • 0.100 inch  

  • 0.200 inch

  • 0.300 inch

  • 0.400 inch

  • 0.500 inch

• Step Face: Each of the five steps features a flat, precisely machined surface area of 3/4 inch by 3/4 inch (0.75" x 0.75"). This provides a consistent and adequate coupling surface for ultrasonic transducers.

• Specification: The block is manufactured in accordance with ASTM E797, which is the Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method. Adherence to this standard ensures that the block's dimensions and material meet recognized industry requirements for calibration standards.  

• Wood Case: The 5-Step Block is supplied with a wooden case. This provides protection for the precision-machined surfaces during storage and transportation, helping to maintain the block's accuracy and prevent damage in demanding conditions.  

• Manufacturer: PH Tool is a well-known and reputable manufacturer of calibration blocks and reference standards for non-destructive testing, ensuring the quality and accuracy of this 5-Step Block.  

Key Features:

• 5 Precision Steps: Provides multiple thickness points for accurate linearity and calibration checks.  

• Type 321 Stainless Steel: Offers excellent corrosion resistance and consistent acoustic properties.  

• Standard Inch Thicknesses: Covers a common range for many ultrasonic thickness gauging applications.

• Adequate Step Face Size: Ensures proper coupling for a variety of ultrasonic transducers.

• Complies with ASTM E797: Meets recognized industry standards for ultrasonic thickness measurement calibration.  

• Protective Wood Case: Safeguards the block during storage and transport.

• Manufactured by PH Tool: A trusted supplier of NDT calibration standards.  

Applications:

• Calibration and linearity verification of ultrasonic thickness gauges used in various industries.  

• Setting up ultrasonic thickness measurement instruments for inspections on stainless steel components and structures.

• Training and qualification of ultrasonic testing personnel.

• Ensuring accurate thickness measurements in accordance with quality control procedures and industry standards.