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CBN Cut-off Wheel for Harden Steel

High-performance CBN cutting discs for precision cutting of hardened steel (HRC 55–65), high-speed steel and tool steel, offering excellent wear resistance, stable cutting performance and long service life. Available in resin, metal and electroplated bonds.
Abrasives Cubic boron nitride
Bond Resin Bond,Metal Bond,Electroplated Bond
Mold 1A1R
Applications Precision cutting of high-hardness steel materials (HRC 60–65)
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“ Cutting hardened steel has always been challenging for us, especially with excessive wheel wear and inconsistent cutting. These CBN discs have made a noticeable difference. Cutting is smoother and wheel life is much better. “
——Michael Brown Production Manager Tool Steel Manufacturer
CBN Cutting Disc for Hardened Steel
CBN cutting blade for high speed steel

Moresuperhard manufactures high-performance CBN cutting discs for precision cutting of hardened steel and other high-hardness ferrous materials.

Cubic Boron Nitride (CBN) is an advanced superabrasive particularly suitable for machining ferrous materials. With excellent hardness, thermal stability and wear resistance, CBN abrasive is widely used in demanding industrial cutting applications.

We provide three main bond systems: resin bond, metal bond and electroplated CBN cutting discs. Different abrasive specifications and bond formulations can be selected according to workpiece hardness, cutting speed, machine conditions and required cutting quality.

cbn blade for harden steel superabrasive cutting disc

 

Standard CBN Cut-off  Wheel  Sizes

CBN cutting discs are available in different diameters and thicknesses for precision cutting machines. The following table presents commonly referenced market configurations for thin CBN cutting discs.

Outer Diameter Thickness Bore Diameter
75 mm 0.2–0.9 mm 12.7 mm
100 mm 0.4–0.9 mm 12.7 mm
125 mm 0.5–1.0 mm 12.7 mm
150 mm 0.5–1.0 mm 12.7 mm
175 mm 0.7–0.9 mm 12.7 mm
200 mm 0.8–1.2 mm 12.7 / 25.4 / 32 mm
250 mm 1.0–1.3 mm 32 mm
300 mm 1.4–2.0 mm 32 mm
350 mm 1.8 mm 32 mm

Note: These dimensions are market-reference configurations, not a confirmation that every size combination is available for every bond type. Actual specifications depend on blade construction, machine requirements and application conditions. Please contact us for production feasibility.

cutting disc drawings

Available Abrasive Specifications

Parameter Specifications
Abrasive Type Cubic Boron Nitride (CBN)
Bond Types Resin Bond, Metal Bond, Electroplated Bond
Grit Size Coarse, Medium and Fine Grades
Outer Diameter 75–350 mm, Customized Diameters Available
Disc Thickness Multiple Thickness Options According to Cutting Requirements
Bore Diameter 12.7 mm, 25.4 mm, 32 mm or Customized
Applications Hardened Steel, High-Speed Steel (HSS), Tool Steel and Bearing Steel

 

3. Materials Suitable for CBN Cutting Discs

CBN cutting discs are suitable for precision cutting of various hardened ferrous materials, including hardened steel, tool steel, high-speed steel and bearing steel.

Material Category Suitable Materials
Hardened Steel Quenched and tempered steel; Heat-treated alloy steel; High-hardness steel components
Tool Steel Cold work tool steel; Hot work tool steel; Die steel; Mold steel
High-Speed Steel (HSS) M2 high-speed steel; M35 high-speed steel; M42 high-speed steel
Bearing and Alloy Steel Hardened bearing steel; Chrome alloy steel; Other high-hardness ferrous alloys

The appropriate CBN cutting disc should be selected according to workpiece hardness, material composition, cutting conditions and machine requirements.

harded steel workpieces

How to Select the Right CBN Cutting Disc

Workpiece Hardness

Different hardness levels require different abrasive characteristics and bond formulations. Provide the actual workpiece hardness in HRC when requesting a quotation.

Cutting Disc Thickness

Thin CBN cutting discs are suitable for applications requiring narrow kerf widths and reduced material loss. Thicker discs generally provide greater structural rigidity.

Bond Type

Resin, metal and electroplated bonds have different abrasive retention and cutting characteristics. The selection should consider cutting speed, feed rate, cooling conditions and required service life.

Machine Specifications

Check the machine’s maximum operating speed, spindle interface, flange dimensions and permitted blade diameter before selecting a cutting disc.

Cutting Conditions

Cutting depth, feed rate, workpiece clamping and coolant supply all influence cutting performance and blade life.

Cutting the valve stem

Why Choose Moresuperhard CBN Cutting Blades?

Moresuperhard specializes in manufacturing diamond and CBN abrasive tools for precision machining applications.

  • Factory-Direct Manufacturing: Direct communication with the manufacturer.
  • Multiple Bond Technologies: Resin, metal and electroplated CBN abrasive solutions.
  • Standard and Custom Sizes: Different diameters, thicknesses and bore configurations.
  • Flexible Abrasive Formulations: Selection according to workpiece material and cutting conditions.
  • Drawing-Based Customization: Products manufactured according to technical drawings and application requirements.
  • Technical Support: Assistance with abrasive selection and application optimization.
  • Short Production Lead Times: Efficient manufacturing and order processing.

Our goal is to provide reliable CBN cutting solutions tailored to your production requirements.

Frequently Asked Questions

Q1: What materials can CBN cutting discs cut?

CBN cutting discs are mainly used for ferrous materials, including hardened steel, high-speed steel, tool steel, bearing steel and heat-treated alloy steel.

Q2: What is the difference between resin bond, metal bond and electroplated CBN cutting discs?

Resin bond discs offer flexible formulation options and good cutting performance. Metal bond discs provide strong abrasive retention and wear resistance. Electroplated discs feature a single abrasive layer with high grain protrusion and aggressive cutting characteristics.

Q3: What CBN cutting disc sizes are commonly available?

Common market-reference diameters include 75 mm, 100 mm, 125 mm, 150 mm, 175 mm, 200 mm, 250 mm, 300 mm and 350 mm. Thickness and bore diameter depend on the blade construction and machine requirements.

Q4: Can CBN cutting discs be used for HRC 60 or harder steel?

Yes. CBN is particularly suitable for high-hardness ferrous materials. The appropriate disc specification should be selected according to steel composition, hardness, machine conditions and cutting requirements.

Q5: Can you manufacture customized CBN cutting discs?

Yes. Moresuperhard can evaluate customized diameters, thicknesses, bore dimensions, abrasive specifications and bond formulations according to customer drawings and application requirements.

Q6: What information is required for a CBN cutting disc quotation?

Please provide workpiece material, hardness, required disc diameter, thickness, bore diameter, cutting machine model and operating conditions. Technical drawings are also welcome.

Request a Quote for CBN Cutting Discs

Looking for reliable CBN cutting discs for hardened steel, high-speed steel or tool steel?

Send Moresuperhard your workpiece details, cutting requirements or technical drawings. Our team can help evaluate suitable CBN abrasive specifications and bond formulations.

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