Spi 98-723-0 Rockwell C Scale Hardness Testing File

Product Description

The SPI 98-723-0 is a Rockwell C Scale hardness testing file rated at 50 RC, designed for use with bench-type hardness testers in industrial and metrology settings. Hardness testing files provide a fast, portable method for verifying surface hardness on ferrous metals and alloys without requiring a dedicated electronic readout. This file serves as a reference standard and field-check tool, allowing quality control technicians and machinists to confirm that a workpiece meets specified hardness requirements before further processing or inspection. At 50 RC, this file targets the mid-to-upper range of the Rockwell C Scale, making it suitable for checking hardened steel components, tooling, and wear parts.

This testing file is suited for shop floor quality control, incoming material inspection, and calibration verification tasks. It is commonly used in machine shops, tool rooms, heat-treating facilities, and manufacturing environments where confirming part hardness is a routine step in the production workflow. Its compact, single-piece form makes it easy to store alongside other inspection tools at a workstation or bring to a part for on-the-spot checking.

Key Features

• Rockwell C Scale rating at 50 RC for mid-to-upper hardness verification
• Compatible with most bench-type Rockwell and Rockwell Superficial type hardness testers
• Single-file format for straightforward storage and use
• Provides a physical reference standard for hardness comparison without electronic instruments
• Suited for ferrous metal and hardened steel inspection applications

Compatibility

Designed for use with most bench-type Rockwell and Rockwell Superficial type hardness testers.

Installation Notes

Hardness testing files are handled and applied by quality control technicians or machinists following standard metrology procedures. Keep the reference surface clean and free of debris before use to ensure accurate hardness comparison results. Store the file in a protective case or designated tool holder to prevent surface damage that could compromise reference accuracy. Follow the tester manufacturer guidelines and applicable ASTM or ISO hardness testing standards when incorporating this file into a calibration or inspection routine.