Cubic Boron Nitride (CBN) Powder for Hardened Steel and Ferrous Alloy Grinding
Crownkyn supplies mesh, micron and coated cubic boron nitride powder for resin, vitrified, metal and electroplated grinding tools used on hardened steel, bearing steel, cast iron, tool steel and selected superalloys.
CBN grades are matched by particle size, crystal shape, strength, friability, thermal stability and bond compatibility to balance cutting efficiency, surface finish and tool life.
Mesh, Micron and Coated CBN Powder Products
Choose CBN powder by particle size, bond system, crystal characteristics and grinding requirements.
Mesh / Monocrystalline CBN Powder
Mesh-size single-crystal CBN grades for resin, vitrified, metal and electroplated grinding tools, selected by bond system, crystal strength and fracture behavior.
Choose by Bond System and Grinding Load
Bond system and grinding conditions are the primary selection factors. Color is used as a supporting crystal-identification attribute.
Micron CBN Powder
Controlled micron-size CBN powder for precision grinding, honing, fine finishing and application-specific PCBN or compact systems.
Choose by Bond and Application
Coated CBN Powder
Nickel- and titanium-coated CBN grades for applications requiring improved grit retention, bond compatibility or controlled particle–bond interface performance.
Available Coated CBN Products
Coated CBN should be selected according to the base CBN grade, coating type, coating amount, bond system and manufacturing conditions.
What Is Cubic Boron Nitride (CBN) Powder?
Cubic boron nitride powder is a synthetic superabrasive used mainly for grinding hardened steel, bearing steel, tool steel, cast iron and other difficult-to-grind ferrous materials.
CBN provides stable abrasive performance under demanding thermal and mechanical conditions and is generally preferred over diamond for hardened ferrous material grinding. Performance depends on the workpiece hardness, bond system, particle size, crystal shape, strength and fracture behavior.
Choose CBN Powder by Bond System and Application
Match the CBN product form and particle size to the bond system, workpiece material, grinding load and surface requirements.
| Bond System / Application | Typical CBN Form | Main Selection Priorities | Process Considerations |
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Resin Bond Grinding Wheels
Precision grinding and relatively cool-cutting tool systems
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Mesh or Micron CBN
Coated grades may also be considered
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Friability, self-sharpening behavior, particle retention and surface-finish requirements | Workpiece hardness, grinding load, bond formulation, coolant conditions and target finish |
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Vitrified Bond Grinding Wheels
Rough, semi-finish and precision profile grinding
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Mesh or Micron CBN
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Controlled fracture behavior, thermal stability, dressing response and profile retention | Wheel porosity, bond firing conditions, dressing method, grinding speed and coolant supply |
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Metal Bond Grinding Tools
Wear-resistant tools and demanding grinding conditions
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Mesh or Micron CBN
Coated options depend on the bond system
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Crystal strength, thermal stability, bond compatibility, wear resistance and tool life | Bond chemistry, processing temperature, particle retention, grinding pressure and dressing requirements |
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Electroplated / Single-Layer Tools
Profile tools, form grinding and high grit exposure
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Mesh CBN
Selected coated CBN may be discussed
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Crystal integrity, particle shape, grit protrusion, impact resistance and coating retention | Plating thickness, grit exposure, tool profile, grinding load and required tool life |
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Fine Grinding, Honing & Finishing
Precision finishing and controlled material removal
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Micron CBN Powder
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Particle-size distribution, oversize control, removal rate and surface integrity | Stock removal, target roughness, workpiece geometry, bond or carrier system and process consistency |
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PCBN Compact Manufacturing
Polycrystalline cubic boron nitride material systems
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High-Purity Micron CBN
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Purity, particle size, crystal structure, thermal stability and batch consistency | Binder system, compact composition, sintering route and target PCBN properties |
Selection note: These are general product-form directions rather than fixed grade recommendations. Final selection depends on workpiece material and hardness, bond formulation, grinding method, wheel speed, coolant, stock removal and target surface finish.
CBN vs Diamond: CBN is generally selected for hardened ferrous materials. Diamond is typically considered for carbide, ceramics, glass, graphite and other hard brittle non-ferrous materials.
Not sure which CBN product form fits your application?
Share the workpiece material, hardness, bond system, particle size and grinding process for a suitable recommendation.
Key Factors for CBN Powder Selection
Evaluate the workpiece, particle size, crystal characteristics, tool system and grinding conditions together before selecting a CBN grade.
Workpiece Material & Hardness
Confirm the material chemistry, hardness and heat-treatment condition before selecting a CBN abrasive grade.
Particle Size & Distribution
Choose mesh or micron CBN according to stock removal, target surface finish, PSD and oversize-control requirements.
Crystal Shape, Strength & Friability
Balance crystal toughness, fracture behavior and self-sharpening according to the grinding load and required tool life.
Tool System & Grinding Conditions
Match the CBN surface and crystal characteristics to the bond, grinding speed, coolant, dressing method and operating load.
CBN Powder Applications
CBN powder is used for grinding hardened ferrous materials, precision automotive and aerospace components, and the manufacture of bonded and electroplated superabrasive tools.
Hardened Steel & Bearing Grinding
CBN abrasives for hardened steel, bearing steel, tool steel, high-speed steel, cast iron and other heat-treated ferrous materials.
View Ferrous MetalsGears, Shafts & Precision Components
CBN grades for grinding gears, shafts, bearings, transmission components and selected hardened or heat-resistant aerospace parts.
View Automotive & AerospaceCBN Materials for Superabrasive Tool Manufacturing
Mesh, micron and coated CBN powder for resin, vitrified and metal-bond grinding wheels, electroplated tools, honing stones and PCBN compact manufacturing.
View Superabrasive Tool ManufacturingRelated Diamond Abrasive Products
For carbide, ceramics, glass, graphite and other hard brittle materials, explore diamond abrasives in mesh, micron and coated forms.
Synthetic Diamond Grit
Mesh-size synthetic diamond for cutting, grinding and tool manufacturing applications involving carbide, ceramics, glass and other hard brittle materials.
Explore Diamond GritMicron Diamond Powder
Controlled micron diamond grades for precision grinding, lapping and polishing where particle-size distribution, removal rate and surface finish are critical.
Explore Micron DiamondCoated Diamond Powder
Metal- and ceramic-coated diamond grades for improved particle retention and interface compatibility in resin, metal and vitrified bond tool systems.
Explore Coated DiamondCBN Powder Selection Guides
Compare CBN with diamond, understand bond-system requirements and select the appropriate mesh or micron particle size for your grinding process.
CBN vs Diamond: Which Superabrasive Should You Choose?
Compare CBN and diamond by workpiece material, chemical compatibility, grinding temperature, tool system and surface requirements.
Read Selection GuideHow to Choose CBN Powder for Different Bond Systems
Select CBN for resin, vitrified, metal and electroplated tools by crystal strength, friability, thermal stability, particle retention and grinding load.
Read Bond Selection GuideCBN Grit Size Guide: Mesh, Micron and Particle Size Selection
Compare mesh and micron CBN sizes for stock removal, profile grinding, precision grinding, honing and fine-surface requirements.
Read Size Selection GuideFrequently Asked Questions
Common questions about CBN particle size, bond systems, coated grades and product selection.
What is the difference between mesh and micron CBN powder?
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Mesh CBN consists of larger abrasive particles commonly used in bonded grinding wheels, electroplated tools and other material-removal applications. Micron CBN has a finer and more controlled particle-size distribution for precision grinding, honing, fine finishing and selected PCBN compact applications.
When should I choose CBN instead of diamond?
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CBN is generally selected for hardened steels, bearing steels, tool steels, cast irons and other difficult-to-grind ferrous materials. Diamond is more commonly used for cemented carbide, ceramics, glass, graphite and other hard brittle non-ferrous materials.
How do I choose CBN for different bond systems?
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Selection depends on the bond formulation, grinding load, particle size, crystal strength and required fracture behavior. Resin-bond tools often benefit from controlled friability and self-sharpening. Vitrified systems require a balance of fracture behavior, dressing response and profile retention, while metal and electroplated tools generally require stronger crystals and reliable particle retention.
When should I consider coated CBN powder?
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Coated CBN may be considered when improved grit retention, bond compatibility or controlled particle-to-bond interaction is required. The coating type should be selected together with the base CBN grade, bond system, processing temperature and tool-manufacturing conditions.
What information is required for CBN grade selection?
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Please provide the workpiece material and hardness, bond system, grit or particle-size range, grinding method, wheel speed, coolant conditions, stock removal, target surface finish and required quantity. These details help determine a suitable mesh, micron or coated CBN direction.
Need Help Selecting a CBN Grade?
Share your workpiece material, hardness, bond system, particle size, grinding process and target finish for a suitable recommendation.