Brown Fused Alumina for Tool Steels

Achieve precision surface finishing, edge preparation, and cleaning on high-hardness tool steels.

Brown fused alumina used for tool steel finishing

Why Use Brown Fused Alumina on Tool Steels?

Tool steels are engineered for extreme hardness and wear resistance—making them difficult to machine or finish using conventional abrasives. Brown fused alumina (BFA) provides a sharp, angular grain structure that efficiently grinds, deburrs, and cleans hardened steels without compromising precision.

  • High hardness abrasive (Mohs 9.0) suited for hardened steel alloys
  • Excellent thermal resistance during high-friction contact
  • Consistent surface quality for dies, molds, and blades
Learn About Our BFA Grades

Applications on Tool Steel Grades

BFA is commonly used to process and finish the following tool steel types:

  • H-series (hot-work steels)
  • D-series (high carbon, high chromium steels)
  • M-series (molybdenum high-speed steels)
  • T-series (tungsten high-speed steels)

Used in industries such as die casting, stamping, plastic injection molding, and cutting tool manufacturing.

Recommended Grit Sizes

  • Heavy stock removal: F16–F36
  • Fine edge conditioning: F60–F120
  • Precision polishing: F150–F320

We supply customized grit sizes to meet specific tooling finish requirements.

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