HRC–HRB Hardness Converter

About This Tool

This tool converts hardness values between Rockwell C (HRC) and Rockwell B (HRB) scales to enable cross-reference and compliance in metalworking, heat treatment, and quality control workflows. It supports direct HRC→HRB or HRB→HRC conversions via an internal cross-reference dataset and interpolation, avoiding manual table lookups.\n\nOperationally, you provide a numeric value, select the source scale and the desired direction, and receive a single numeric result with the correct unit. The computation uses a validated cross-reference dataset and linear interpolation between adjacent points to preserve monotonicity.\n\nWho benefits: metallurgists, heat-treatment operators, supplier QA teams, and engineers who must document material hardness across standards. Unique value lies in instant, auditable cross-scale results without external references, while maintaining documentation-friendly precision and error handling. Optional features (advanced) include adjustable precision and batch processing for multiple values and export of results for reporting.\n\nCore features include input validation, range checks, and clear error codes for out-of-range values. This ensures reliable results across typical lab and shop-floor conditions, with stable behavior across different datasets and scales.

Sign in to see all your usage