Get in touch with us
Leave a message
Stellite31 Cobalt Alloy Plate – Premium Cobalt Based Alloy from China
The Stellite31 Cobalt Alloy Plate is a high-performance cobalt chromium alloy designed for extreme environments. Renowned for its exceptional wear resistance, corrosion resistance, and high-temperature stability, this cobalt base alloy is a top choice for industries requiring durable materials. Its unique cobalt alloy composition ensures reliability in demanding applications, making it a preferred material for manufacturers worldwide.
Price: Contact Us for a Custom Quote
For competitive pricing on Stellite31 Cobalt Alloy Plate, please contact our sales team through our website’s inquiry form. Pricing terms for this cobalt-based alloy are tailored based on order volume, specifications, and delivery requirements.
Specifications
- Thickness: 0.5 mm to 50 mm
- Width: Up to 2000 mm
- Length: Customizable, up to 6000 mm
- Surface Treatment: Polished, sandblasted, or as-rolled
- Standards: ASTM, ASME, or custom specifications
Key Features (Advantages)
- Superior wear resistance for extended service life
- Excellent corrosion resistance in harsh chemical environments
- High-temperature stability up to 1200°C
- Versatile for various industrial applications
- Customizable dimensions for specific project needs
Applications of Stellite31 Cobalt Alloy Plate
This cobalt alloy is widely used in industries such as:
- Aerospace: Turbine blades, exhaust components
- Power Generation: Gas turbine parts, heat exchangers
- Chemical Processing: Valves, pumps, and reactor linings
- Oil and Gas: Wear-resistant components for drilling equipment
- Medical: Orthopedic implants due to biocompatibility
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Cobalt (Co) | Balance |
| Chromium (Cr) | 25.0 - 27.0 |
| Nickel (Ni) | 9.0 - 11.0 |
| Tungsten (W) | 7.0 - 8.0 |
| Carbon (C) | 0.45 - 0.55 |
| Iron (Fe) | ≤ 2.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 800 MPa |
| Yield Strength | ≥ 500 MPa |
| Elongation | ≥ 10% |
| Hardness (HRC) | 30 - 40 |
Chemical Properties
The Stellite31 Cobalt Alloy Plate offers excellent resistance to acids (e.g., sulfuric and hydrochloric) and alkalis, making it ideal for chemical processing environments. It complies with environmental regulations, but users should avoid prolonged exposure to highly concentrated acidic solutions above 80°C to prevent potential degradation.
Things to Note (Limitations)
- High Temperatures: Prolonged exposure above 1200°C may reduce mechanical strength.
- Brittleness: May exhibit brittleness under extreme impact loads.
- Cost: Higher cobalt alloy price compared to standard alloys due to premium composition.
Corrosion Data for Stellite31 Cobalt Alloy Plate
| Environment | Corrosion Resistance |
|---|---|
| Atmospheric (Air, Humidity) | Excellent |
| Mild Chemical (Dilute Acids) | Very Good |
| Seawater | Good |
| High-Temperature Oxidizing Gases | Excellent |
Best Welding and Manufacturing Practices
Recommended welding methods for Stellite31 Cobalt Alloy Plate include TIG (Tungsten Inert Gas) and plasma arc welding. Preheating to 200-300°C is advised to minimize cracking. The alloy supports forming processes like cutting, bending, and machining, though specialized tools are required due to its hardness.
What Customers Say About
Frequently Asked Questions
Q: How does Stellite31 differ from other cobalt-based alloys?
A: Stellite31 Cobalt Alloy Plate has a unique balance of chromium, nickel, and tungsten, offering superior wear and corrosion resistance compared to other cobalt-based alloys.
Â
Q: What industries benefit most from this alloy?
A: Aerospace, power generation, chemical processing, and oil and gas industries rely on its durability.
Â
Q: What is the typical lead time for custom orders?
A: Lead times vary based on specifications but typically range from 4-6 weeks.
Â
Q: Is it cost-effective compared to Stellite round bars?
A: While Stellite31 Cobalt Alloy Plate has a higher initial cost, its longevity reduces maintenance expenses, unlike round bars or round rods.
Â
Q: What welding precautions are needed?
A: Use TIG welding with preheating to avoid cracking, and ensure proper ventilation.