Cobalt HS6 Wires – Manufacturer, Supplier & Exporter in Mumbai, India

Cobalt HS6 Wires – Manufacturer, Supplier & Exporter in Mumbai, India

Virami Steel Hub is a premier manufacturer, supplier, stockist, and exporter of high-performance Cobalt HS6 Wires in Mumbai, India. Our HS6 wires are engineered for exceptional wear resistance, high-temperature stability, and corrosion resistance, making them ideal for aerospace, industrial tooling, chemical, and medical applications

Manufactured with advanced metallurgical processes, our Cobalt HS6 wires offer uniform composition, high tensile strength, and precise dimensional accuracy, ensuring reliability for critical industrial applications. We supply across India and export globally to the USA, Europe, the Middle East, Africa, and Southeast Asia, providing competitive pricing, certified quality, and timely delivery.

What is Cobalt HS6 Wire?

Cobalt HS6 is a high-cobalt, high-speed tool alloy wire that combines cobalt, tungsten, and other alloying elements to deliver superior hardness, wear resistance, and thermal stability. HS6 wires are specifically designed for high-temperature and high-stress applications, making them suitable for cutting tools, dies, industrial machinery, and high-performance equipment.

Cobalt HS6 wires are widely used in applications requiring durability under extreme conditions, including aerospace components, chemical processing tools, and specialized medical devices.

Key Features of Cobalt HS6 Wires

Cobalt HS6 wires possess a range of properties that make them highly desirable:

  • Exceptional wear and abrasion resistance
  • High-temperature stability up to 600–650°C
  • Superior hardness and tensile strength
  • Excellent corrosion and chemical resistance
  • Good machinability and formability
  • Dimensional stability under mechanical and thermal stress
  • Can be heat-treated for enhanced mechanical properties
  • Long service life in extreme operating conditions

These features make HS6 wires suitable for cutting tools, high-speed machining, chemical, and aerospace applications.


Chemical Composition of Cobalt HS6 Wires (%)

Typical chemical composition of Cobalt HS6 wires includes:

Element Composition (%)
Cobalt (Co) 50 – 55
Tungsten (W) 15 – 18
Chromium (Cr) 4 – 6
Carbon (C) 1.3 – 1.6
Vanadium (V) 2 – 3
Iron (Fe) 3 – 5
Molybdenum (Mo) 4 – 5

Role of Key Elements

  • Cobalt (Co): Provides hardness, corrosion resistance, and high-temperature stability.
  • Tungsten (W): Enhances wear resistance and strength at elevated temperatures.
  • Chromium (Cr): Improves hardness, corrosion resistance, and oxidation resistance.
  • Vanadium (V): Refines grain structure and enhances toughness.
  • Carbon (C): Contributes to hardness and wear resistance.

This composition ensures HS6 wires deliver mechanical stability and high-performance characteristics in demanding industrial environments.


Mechanical Properties of Cobalt HS6 Wires

Cobalt HS6 wires exhibit excellent mechanical properties suitable for industrial tooling and high-stress applications:

  • Tensile Strength: 900 – 1,200 MPa
  • Yield Strength: 850 – 1,050 MPa
  • Elongation: 10 – 15%
  • Hardness: 400 – 450 HV
  • High-temperature creep resistance

The combination of hardness, ductility, and thermal stability ensures long-lasting performance in cutting, machining, and high-speed tooling applications.


Physical Properties

  • Density: 8.9 – 9.2 g/cm³
  • Melting Point: 1,450 – 1,500°C
  • Modulus of Elasticity: 210 GPa
  • Thermal Conductivity: 50 W/m·K
  • Coefficient of Thermal Expansion: 13 µm/m°C

These properties make Cobalt HS6 wires dimensionally stable and durable under extreme mechanical and thermal stress.


Heat Treatment

Cobalt HS6 wires can be heat-treated to enhance mechanical properties:

  • Annealing: Heat to 850–900°C, slow cooling to improve ductility and relieve internal stresses
  • Hardening: Solution treatment followed by quenching and tempering to maximize hardness and wear resistance

Proper heat treatment ensures optimal mechanical strength, hardness, and high-temperature stability for tooling and industrial applications.


Weldability

Cobalt HS6 wires are weldable with precautions:

  • Gas Tungsten Arc Welding (GTAW/TIG) recommended
  • Shielding with inert gas (argon or helium) to avoid contamination
  • Controlled preheating and post-weld cooling for optimal strength

Proper welding preserves mechanical integrity and corrosion resistance.


Machinability

Cobalt HS6 wires exhibit moderate machinability:

  • Use sharp carbide or high-speed steel tools
  • Low to moderate cutting speeds recommended
  • Use coolant to prevent overheating
  • Grinding, EDM, and precision cutting preferred for high-strength wires

These machining practices ensure precision, surface finish, and dimensional accuracy.


Standards & Specifications

Virami Steel Hub supplies Cobalt HS6 wires according to international standards:

  • ASTM B777 / ASTM F75 (for cobalt-based alloys)
  • ISO 5832-4 (medical-grade cobalt alloys)
  • UNS R30075 designation for high-speed cobalt alloys

Available Sizes

  • Wire Diameter: 0.1 mm to 10 mm
  • Coil Weight: 0.5 kg to 100 kg
  • Straight lengths as per client requirements

Surface Finishes

  • Bright Drawn
  • Annealed
  • Polished
  • Cold Drawn

Custom finishes and diameters are available to meet industrial, aerospace, and medical requirements.


Applications of Cobalt HS6 Wires

Aerospace & Defense

  • High-temperature components
  • Aerospace fasteners and structural parts
  • Jet engine and turbine components

Industrial Tooling

  • High-speed cutting tools
  • Dies, punches, and industrial molds
  • Wear-resistant guide wires and machine components

Chemical & Petrochemical Industry

  • Corrosion-resistant fasteners
  • High-strength piping and industrial machinery components
  • Heat-resistant mechanical parts

Medical & Biomedical Applications

  • Surgical instruments
  • Medical implants requiring high strength and corrosion resistance
  • Precision biomedical components

Cobalt HS6 wires are ideal wherever high hardness, wear resistance, and thermal stability are required.


Quality Testing & Inspection

All Cobalt HS6 wires undergo rigorous quality control at Virami Steel Hub:

  • Chemical composition verification
  • Mechanical testing (tensile, elongation, hardness)
  • Surface and dimensional inspection
  • Positive Material Identification (PMI)

Mill Test Certificates (MTC) are provided as per ASTM, ISO, and UNS standards, and third-party inspection is available upon request.


Packaging & Delivery

  • Moisture-proof and corrosion-resistant packaging
  • Supplied in coils or straight lengths
  • Export-grade wooden crates or pallets
  • Proper labeling for traceability and safe handling

Our logistics system ensures timely and safe delivery globally.


Why Choose Virami Steel Hub?

  • Trusted manufacturer and exporter in Mumbai, India
  • Large ready-stock inventory
  • Competitive pricing and custom manufacturing options
  • Compliance with international ASTM, ISO, and UNS standards
  • Reliable global shipping network
  • Commitment to quality, precision, and long-term customer satisfaction

Conclusion

Cobalt HS6 wires are high-strength, wear-resistant, and high-temperature-capable wires designed for aerospace, industrial tooling, chemical, and medical applications. Their exceptional hardness, corrosion resistance, and thermal stability make them an ideal choice for cutting tools, dies, high-speed machining, and high-performance industrial components.

Virami Steel Hub supplies certified Cobalt HS6 wires manufactured to international standards, ensuring precision, durability, and long-term reliability in the most demanding industrial environments worldwide.

Products / Services