HS18-1-1-5 / 1.3255 High Speed Steel

Forms of delivery of steel circle 1.3255 / Р18К5Ф2

Steel circle Bar 1.3255 (R18K5F2)

Steel circle bar 1.3255 (R18K5F2) is a high-speed tool steel known for its high hardness, heat resistance, and wear resistance. Due to its high tungsten, cobalt, and vanadium content, this steel offers excellent cutting properties and retains hardness even at elevated temperatures.

General Technical Characteristics

Key properties of 1.3255 steel:

• Hardness after heat treatment: 64-67 HRC
• Tensile strength: 2500-2800 MPa
• Operating temperature: up to 600°C
• Heat resistance: up to 620°C

Applications of Steel 1.3255 (R18K5F2)

Due to its unique properties, this steel is used in:

• Cutting tools – drills, milling cutters, lathe tools, saws.
• Stamping tools – press molds, dies, punches.
• High-speed machine components, operating under extreme conditions.
• Metal processing tools, requiring high wear resistance.

Key Features of Steel 1.3255 (R18K5F2)

✅ High heat resistance – tools can operate at elevated temperatures without losing strength.
✅ Excellent cutting performance – thanks to its high tungsten content.
✅ Exceptional wear resistance – ensures a long service life for tools.
✅ High hardness – retained even after heating.

Chemical Composition of Steel 1.3255 (R18K5F2)

The specially designed composition gives the steel its high-performance characteristics:

• Carbon (C): 0.70-0.85%
• Tungsten (W): 17.50-19.00%
• Cobalt (Co): 4.50-5.00%
• Vanadium (V): 1.00-1.40%
• Chromium (Cr): 3.50-4.50%
• Molybdenum (Mo): 0.50-1.00%

Mechanical Properties of Steel 1.3255 (R18K5F2)

• Tensile strength: 2500-2800 MPa
• Yield strength: 2100-2300 MPa
• Elastic modulus: 210 GPa
• Impact toughness: 30-40 J/cm²

Advantages of Steel Round Bar 1.3255 (R18K5F2)

✔ High performance – ideal for high-speed cutting tools.
✔ Resistance to high temperatures – suitable for operation without cooling.
✔ Extended tool life – reduces wear and tear.
✔ Superior hardness and strength – withstands heavy loads.

This steel is the best choice for manufacturing cutting tools that require high wear resistance and stability at elevated temperatures.