Virami Steel Hub is a trusted manufacturer, supplier, stockist, and exporter of Cobalt HS6 Round Bars in Mumbai, India. We supply these premium cobalt alloy bars across India and export globally to countries including the USA, Europe, Middle East, Canada, Australia, and Southeast Asia.
Cobalt HS6 is a high-speed steel (HSS) alloy containing cobalt, designed to maintain high hardness, wear resistance, and thermal stability at elevated temperatures. Cobalt HS6 Round Bars are widely used in cutting tools, drills, milling cutters, taps, dies, and industrial machinery where high performance under extreme heat and mechanical stress is required.
Cobalt HS6 Round Bars are solid rods made from high-speed steel with approximately 5–6% cobalt, engineered to withstand high cutting speeds, thermal loads, and wear-intensive operations.
Key features of Cobalt HS6 bars:
These features make Cobalt HS6 Round Bars ideal for precision cutting, industrial tooling, aerospace components, and high-performance manufacturing machinery.
These characteristics make Cobalt HS6 Round Bars a preferred choice for high-speed steel cutting tools and precision industrial components.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.85 - 0.95% |
| Chromium (Cr) | 4.0 - 5.0% |
| Vanadium (V) | 1.8 - 2.2% |
| Tungsten (W) | 5.0 - 6.0% |
| Molybdenum (Mo) | 4.0 - 5.0% |
| Cobalt (Co) | 5.0 - 6.0% |
| Manganese (Mn) | 0.3 - 0.5% |
| Silicon (Si) | 0.3 - 0.6% |
| Iron (Fe) | Balance |
Role of Alloying Elements
This combination ensures optimal balance between hardness, toughness, and wear resistance for high-speed machining and tooling applications.
Cobalt HS6 Round Bars offer excellent mechanical properties, making them suitable for high-performance cutting and industrial tools:
These mechanical properties make HS6 Round Bars ideal for high-speed drills, end mills, taps, dies, and cutting tools requiring extreme precision and durability.
These physical properties ensure dimensional stability, thermal resilience, and long-term durability under high-speed and heavy-duty industrial operations.
Heat treatment is critical to achieving maximum hardness and wear resistance:
Typical Heat Treatment Process:
Proper heat treatment ensures maximum hardness, wear resistance, and toughness, making Cobalt HS6 Round Bars suitable for high-performance tooling.
With proper machining, HS6 Round Bars can achieve tight tolerances and high-quality surface finishes.
Cobalt HS6 Round Bars are widely used in metalworking, industrial tooling, and aerospace applications:
Cutting Tools
Industrial & Mechanical
Aerospace & Defense
Other Applications
Carbon Steel A105 / A105N is widely used in industrial, oil, gas, and petrochemical applications:
Available Sizes & Specifications
Standards:
Size Range:
Surface Finish:
All Cobalt HS6 Round Bars undergo:
Mill Test Certificates (MTC) are provided per ASTM / ISO standards. Third-party inspection is available on request.
Cobalt HS6 Round Bars are premium cobalt-alloyed high-speed steel bars offering superior hardness, wear resistance, thermal stability, and toughness. Ideal for high-speed cutting tools, industrial tooling, aerospace components, and precision machining, these bars ensure long-term durability, exceptional performance, and reliability under extreme conditions.
Virami Steel Hub supplies certified Cobalt HS6 Round Bars with customizable sizes, lengths, and surface finishes, making them the preferred choice for critical high-speed machining, industrial, and aerospace applications.
