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Stellite 20 Cobalt Alloy Pipe – Excellent Cobalt Alloy Pipe Manufacturer in China
Stellite 20 Cobalt Alloy Tube, produced by our reputable China manufacturer, is a high-performance chromium cobalt nickel alloy designed for exceptional durability. Renowned for its superior wear and corrosion resistance, this cobalt alloy steel thrives in extreme conditions, making it ideal for aerospace, chemical, and industrial applications. Its robust cobalt alloy composition ensures reliability in demanding environments.
Price: Contact Us for a Custom Quote
Contact our sales team for a customized quote on Stellite 20 Cobalt Alloy Tube. Pricing depends on specifications, order volume, and delivery terms. Reach out to our China-based factory to explore cobalt alloy price options tailored to your needs.
Specifications
- Outer Diameter:Â 8 mm to 280 mm
- Wall Thickness:Â 0.6 mm to 28 mm
- Length:Â Up to 10 meters (custom lengths available)
- Surface Treatment:Â Polished, annealed, or pickled
- Standards:Â ASTM B622, ASME SB622
- Tolerance: ±0.12 mm for diameter, ±0.06 mm for thickness
Key Features (Advantages)
- Outstanding Wear Resistance:Â Excels in highly abrasive environments.
- Exceptional Corrosion Resistance:Â Resists aggressive chemicals and acids.
- High-Temperature Stability: Maintains integrity up to 950°C.
- Versatile Cobalt Alloy Uses:Â Suited for diverse industries.
- Precision Manufacturing:Â Consistent quality from our China factory.
Applications of Stellite20 Cobalt Alloy Tube
Stellite 20 Cobalt Alloy Tube is valued for its cobalt alloy properties in demanding industries. Key applications include:
- Aerospace:Â Turbine components, fuel nozzles, and exhaust systems.
- Chemical Processing:Â Piping for corrosive fluids and reactors.
- Oil & Gas:Â Valves and pipelines in harsh environments.
- Industrial:Â Wear-resistant parts in heavy machinery.
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Cobalt (Co) | Balance (approx. 50-55%) |
| Chromium (Cr) | 30-34% |
| Tungsten (W) | 13-16% |
| Nickel (Ni) | 0-2% |
| Carbon (C) | 2.0-2.5% |
| Others (Fe, Si, Mn) | ≤3% |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 1000-1200 MPa |
| Yield Strength | 700-900 MPa |
| Elongation | 5-10% |
| Hardness (HRC) | 45-52 |
Chemical Properties
The cobalt alloy properties of Stellite 20 Cobalt Alloy Tube include excellent resistance to acids (e.g., sulfuric, hydrochloric) and alkalis, making it ideal for corrosive environments. However, it may require coatings in highly oxidizing acids like nitric acid. This alloy complies with environmental regulations, but recycling is recommended to minimize cobalt-related environmental impact.
Things to Note (Limitations)
While Stellite 20 Cobalt Alloy Tube is highly durable, consider these limitations:
- High Temperatures: Slight strength loss above 950°C.
- Brittleness:Â Higher carbon content increases risk of cracking under extreme stress.
- Cost:Â Higher cobalt alloy price compared to standard alloys.
Corrosion Data for Stellite20 Cobalt Alloy Tube
| Environment | Corrosion Rate (mm/year) |
|---|---|
| Atmospheric (Marine) | <0.01 |
| Mild Chemical (pH 4-10) | <0.03 |
| Sulfuric Acid (10%) | 0.1-0.4 |
| Hydrochloric Acid (5%) | 0.3-0.7 |
Best Welding and Manufacturing Practices
Stellite 20 Cobalt Alloy Tube supports welding methods like TIG (Tungsten Inert Gas) and plasma arc welding, using Stellite-compatible fillers to maintain cobalt alloy properties. Fabrication techniques include:
- Cutting:Â Laser or waterjet for precision.
- Forming:Â Cold forming with caution due to high hardness.
- Machining:Â Use carbide or diamond tools for best results.
What Customers Say About
Frequently Asked Questions
Q: How does Stellite 20 Cobalt Alloy Tube differ from stainless steel?
A: Stellite 20 offers superior wear and corrosion resistance due to its cobalt alloy composition, outperforming stainless steel in extreme conditions.
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Q: What are the main cobalt alloy uses for Stellite 20?
A: It’s used in aerospace, chemical processing, oil & gas, and industrial applications for components like turbines, piping, and valves.
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Q: How does the cobalt alloy price impact purchasing?
A: Stellite 20 is costlier than stainless steel but offers unmatched durability. Contact us for a quote.
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Q: Is Stellite 20 environmentally compliant?
A: It meets environmental standards, but recycling is advised to reduce cobalt impact.
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Q: What cobalt alloy properties make Stellite 20 unique?
A: Its exceptional wear resistance, corrosion resistance, and high-temperature stability set it apart.