Stellite® 6 – Cobalt-Based Superalloy for Wear & Corrosion Resistance

Stellite® 6 is a cobalt-chromium-tungsten alloy engineered for exceptional resistance to wear, erosion, galling, and corrosion—especially at elevated temperatures. As one of the most widely used cobalt-based superalloys, Stellite 6 offers a unique combination of hardness, toughness, and corrosion resistance that makes it ideal for harsh industrial environments.

✅ Key Features of Stellite 6

  • Outstanding Wear Resistance
    Maintains surface integrity under abrasive, adhesive, and sliding wear conditions—even in metal-to-metal contact.
  • Excellent Corrosion and Oxidation Resistance
    Performs well in acidic, saline, and oxidizing environments, including chlorides and sulfates.
  • High-Temperature Performance
    Effective up to 800°C (1470°F) without significant loss of hardness or mechanical strength.
  • Low Friction and Galling Tendency
    Ideal for valves, bushings, and sliding components, especially where lubrication is limited.
  • Good Metallurgical Stability
    Can be cast, sprayed, welded, or applied as hard-facing material using PTA, laser, or HVOF methods.

📐 Typical Mechanical & Physical Properties

Property

Value

Density

~8.4–8.8 g/cm³

Hardness (as-cast)

~HRc 40–45

Hardness (after hardfacing)

~HRc 45–50

Operating Temperature

Up to 800°C (1470°F)

Tensile Strength

~1100 MPa

Corrosion Resistance

Excellent (chlorides, acids)

Wear Resistance

Superior (metal-to-metal & abrasion)

🔧 Common Applications of Stellite® 6

Stellite 6 is trusted in critical applications where component failure from wear or corrosion is not acceptable, including:

  • Valves & Valve Seats
    • High-pressure, steam, oil & gas, and chemical valves
  • Pump Components
    • Shafts, sleeves, impellers, and bushings
  • Turbine & Engine Parts
    • Hot gas paths, blades, nozzle segments
  • Cutting & Forming Tools
    • Knives, dies, cutters used in textile, plastic, or metal industries
  • Bearings & Seals
    • Sliding and rotating components under thermal and friction stress
  • Nuclear & Power Generation
    • Stellite-clad components in boiling water and pressurized water reactors

🛠 Available Product Forms

At Edgetech Industries, we offer Stellite® 6 in various forms to suit welding, machining, or coating needs:

  • Stellite 6 Rods & Bars – Machined into wear-resistant parts
  • Stellite 6 Welding Rods & Electrodes – For arc welding and TIG applications
  • Powder Form (Gas-Atomized) – For thermal spraying, laser cladding, HVOF coating
  • Stellite 6 Castings – Custom parts, valve seats, and complex shapes
  • Wafers, Tips & Inserts – For tooling, knives, and mechanical seals
  • Wire & Strips – For welding overlays or wire-fed additive processes

All materials are available with certifications (ASTM, AMS, or equivalent) and can be customized to your dimensions and usage requirements.

📞 Request a Quote for Stellite 6

Looking for a high-quality Stellite® 6 supplier? At Edgetech we deliver certified cobalt-based superalloys tailored to your industrial applications. Contact us today to get pricing, datasheets, or expert technical guidance.