Rockwell Hardness Scale C / HRC Test Blocks– For Calibration & Comparison

These Sauter HO HRC comparison plates are essential tools for verifying and checking the accuracy of Shore durometers. Each individual block is clearly marked with its reference value. Ideal for internal verification and operator training, these blocks help ensure repeatability and measurement confidence.

Designed for use with handheld Rockwell / HRC hardness testers or mounted systems, they cover a wide range of hardness values and support quick, reliable functional checks.

Key Features

• HRC comparison plates: Stainless steel with defined Rockwell C hardness values
• Measurement range: From 28-35 up to 58-63 HRC
• Ideal for: Routine accuracy checks, training, and durometer performance validation

Model Options

Applications

• Verify accuracy of Rockwell C harness testers before use
• Ensure compliance with quality control procedures
• Training and competency checks for operators
• Quick functional validation in labs or production environments

Downloads & Resources

Please refer to your durometer’s manual for comparison plate compatibility. These sets are designed for use with HRC / Rockwell Hardness Scale C hardness testers only.