CBN Minerals
CBN minerals for high-performance grinding and cutting.
Products
CBN-90
WIDENTA
A black, friable CBN abrasive offering excellent micro-fracture behavior for superior surface finishing and efficient high-speed machining.
CBN-130
WIDENTA
An amber-transparent CBN material balancing strength and fracture behavior for versatile grinding across ferrous materials.
CBN-150
WIDENTA
A black CBN grade combining moderate toughness with good thermal stability, balancing cutting performance and tool life.
CBN-180
WIDENTA
A deep brown, high-toughness CBN material featuring superior self-sharpening and high thermal conductivity for aggressive grinding applications.
CBN-190
WIDENTA
A black CBN abrasive with extreme toughness and high thermal resistance, designed for interrupted and high-pressure grinding conditions.
CBN-300
WIDENTA
A dark amber, ultra-tough CBN mineral built for maximum performance in heavy cutting and extreme grinding environments.
Overview
Cubic Boron Nitride (CBN) minerals are designed for the toughest grinding and cutting tasks, especially on hardened steels. With outstanding hardness, thermal stability up to 1,400°C, and low chemical reactivity, CBN ensures long tool life and precise results in automotive, aerospace, and bearing manufacturing. Controlled friability and engineered grain structures maintain sharpness and efficiency throughout demanding operations.
Highlights
Exceptional Hardness
Second only to diamond (Knoop hardness 4,500 HV) for machining hardened steels (>45 HRC).
Thermal Stability
Withstands 1,400°C without phase degradation—ideal for dry/high-speed grinding.
Features
Low Chemical Reactivity
Inert with iron-based alloys, preventing tool wear when grinding ferrous metals.
Controlled Friability
Engineered grain fracture patterns maintain sharp cutting edges longer than alumina.
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WIDENTA
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WIDENTA
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Micron Powders
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Ultra-fine powders for high-precision polishing and grinding.