Materials
Stellite 6B
Material:
Stellite 6B is a cobalt-chromium-tungsten alloy designed for extreme wear, corrosion, and high-temperature resistance.
Part of the Stellite family of cobalt-based alloys, commonly used in high-performance components subjected to abrasion and heat.
Mechanical Properties:
Hardness: Extremely high (Rockwell C 45–55 in as-cast; can be higher with surface treatment).
Wear Resistance: Excellent, even under heavy loads and abrasive conditions.
Tensile Strength: Moderate (~100–150 ksi depending on heat treatment).
Temperature Resistance: Retains hardness and corrosion resistance up to ~1000°F (540°C).
Corrosion & Oxidation Resistance:
Outstanding resistance to oxidation, scaling, and general corrosion.
Performs well in acidic, oxidizing, and marine environments.
Ideal for cavitation- and erosion-prone environments.
Manufacturing Considerations:
Machining: Very difficult; typically requires grinding, EDM, or specialized tooling.
Casting & Powder Metallurgy: Common manufacturing methods due to hardness.
Joining: Welding is possible but challenging; often mechanical attachment or brazing is preferred.
Surface Finishing: Often ground or polished for dimensional accuracy and performance.
Applications in Fasteners & Components:
Valve seats, cutting tools, and pump components exposed to extreme wear.
High-temperature or corrosive bolting and studs in chemical, power generation, and aerospace equipment.
Erosion-resistant coatings or overlays on high-stress fasteners and components.
Oil & gas and marine hardware where abrasion and corrosion resistance are critical.
Key Takeaway for Fasteners
Stellite 6B is chosen for engineered fasteners and components that require extreme wear resistance, corrosion resistance, and high-temperature durability. While it is not easily machined, it is ideal for critical applications in chemical, aerospace, marine, and power generation industrieswhere component longevity under harsh conditions is essential.
Materials
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The manufacturing processes, testing capabilities, and quality systems featured throughout WN Global support the production of critical components and engineered fastening solutions across demanding industries. Connect with our team to learn how our manufacturing capabilities can support your project requirements.
