MarMonix MRB-HRC-61.1 Standard Rockwell Hardness Reference Block

MRB-HRC-61.1: Precision Rockwell Hardness Reference Standard

The MRB-HRC-61.1 is more than just a reference block; it is an essential calibration asset for laboratories that demand absolute measurement repeatability. Engineered for professionals who cannot afford calibration drift, this Rockwell hardness standard provides the bedrock of reliability for your hardness testing instruments.

By utilizing advanced deep-stabilized alloy tool steel, we have crafted a solution that resists structural variance even over extended periods of use. The surface topography is meticulously mirror-lapped, ensuring that micro-roughness never interferes with your indentation accuracy. Whether you are performing routine verification or rigorous metrological calibration, the MRB-HRC-61.1 offers the stability you need to document precise and defensible results

Why Choose This Calibration Block?

• Drift-Free Performance: Constructed from high-purity alloy steel to combat long-term structural changes.
• Optimized Surface Integrity: Our mirror-lapped finish minimizes indentation noise and reduces measurement deviation.
• Exceptional Uniformity: With a surface uniformity rating of 0.3 HR, you get consistent readings across the entire testing face.
• Proven Accuracy: Certified at 61.1 HRC, providing a precise reference point for all Rockwell-compliant testing equipment.