8.6g/cm3 Cobalt Based Alloys Wear Resistant Stellite 23 Alloy

Product Specification

Stellite 23 Alloy Excels In Wear Resistance, Corrosion Resistance, And High Temperatures.

Stellite 23 Alloy is a cobalt-based alloy renowned for its exceptional wear resistance, high hardness, and excellent corrosion resistance, particularly in high-temperature environments. This alloy is engineered to withstand severe service conditions and maintain its performance in abrasive and corrosive applications.

Detailed Product Description:

Stellite 23 Alloy combines cobalt with chromium, tungsten, and carbon to create a material with outstanding durability and strength. It is especially suited for applications that involve high wear and corrosion, such as in cutting tools, industrial machinery, and aerospace components.

Chemical Composition:

Stellite 23 Alloy's composition is tailored to provide superior properties:

• Cobalt (Co): 50-60% – Provides the base metal with high-temperature strength and corrosion resistance.
• Chromium (Cr): 30-35% – Enhances oxidation and corrosion resistance.
• Tungsten (W): 5-10% – Increases hardness and wear resistance.
• Carbon (C): 1.8-3.0% – Contributes to carbide formation for improved hardness.
• Nickel (Ni): ≤3% – Adds to toughness and corrosion resistance.
• Iron (Fe): ≤3% – Minor component to adjust mechanical properties.
• Silicon (Si): ≤1% – Assists in deoxidation during alloy production.

Mechanical Properties:

• Hardness: 55-65 HRC – Ensures high wear resistance and durability.
• Tensile Strength: Approximately 1,200-1,300 MPa – Provides strength under mechanical stress.
• Density: 8.6 g/cm³ – Ensures robust performance in demanding applications.
• Ductility: Low – Suitable for applications with minimal deformation requirements.
• High-Temperature Performance: Maintains properties and wear resistance up to 800°C.

Corrosion and Wear Resistance:

• Wear Resistance: Outstanding in abrasive and sliding wear conditions, ideal for cutting and wear parts.
• Corrosion Resistance: Excellent resistance to acids, alkalis, and seawater, suitable for harsh environments.
• Oxidation Resistance: Effective in high-temperature oxidizing environments, retaining integrity up to 800°C.

Applications:

Stellite 23 Alloy is utilized in various high-performance applications, including:

• Cutting Tools: Perfect for tools exposed to severe wear and high temperatures.
• Valve Seats and Stems: Used in valves handling corrosive and abrasive fluids.
• Aerospace Components: Applied in parts subjected to extreme temperatures and mechanical stresses.
• Oil and Gas Industry: Ideal for downhole tools, valves, and other equipment in harsh conditions.
• Industrial Machinery: Employed in machinery and components needing high durability and wear resistance.

Heat Treatment:

Stellite 23 Alloy can be heat treated to optimize its properties:

• Solution Annealing: Enhances corrosion resistance and relieves internal stresses.
• Aging: Increases hardness and wear resistance through carbide precipitation.
• Hardening: Achieves optimal hardness and performance with controlled cooling processes.

Summary:

Stellite 23 Alloy is a high-performance, cobalt-based alloy designed for applications requiring excellent wear and corrosion resistance, particularly at high temperatures. Its robust composition and mechanical properties make it ideal for cutting tools, aerospace components, and industrial machinery, ensuring durability and reliability in severe service conditions.