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MP35N Cobalt Alloy Rod Manufacturer in China – High-Performance Alloy Solutions
The MP35N Cobalt Alloy Rod is a high-performance nickel-cobalt alloy known for its exceptional strength, corrosion resistance, and biocompatibility. Compared to alloys like Stellite 6 or Haynes 25, MP35N offers superior mechanical properties, making it ideal for demanding applications. As a trusted MP35N Cobalt Alloy Rod manufacturer in China, we provide premium-quality rods for industries requiring durability and precision.
Price: Contact Us for a Custom Quote
Contact our sales team for the best MP35N Cobalt Alloy Rod rates. We provide personalized quotes for MP35N Cobalt Alloy Bar prices tailored to your project needs, including size, quantity, and delivery schedule. Reach out now to learn more!
Specifications
- Diameter Range: 3 mm to 300 mm
- Length: Up to 6 meters (custom lengths available)
- Surface Finish: Cold drawn, hot rolled, polished, or as per request
- Standards: ASTM F562, AMS 5844
- Shape Variants: Round Bar, hexagonal bar
- Tolerances: As per ASTM standards or customer specifications
Key Features (Advantages)
- High Strength: Exceptional tensile strength, surpassing alloys like Stellite 12 or Stellite 6b.
- Corrosion Resistance: Outstanding resistance to acids, alkalis, and saltwater environments.
- Biocompatibility: Ideal for medical applications due to its non-reactive properties.
- Fatigue Resistance: Excellent performance under cyclic loading, outperforming Haynes 25 in some scenarios.
- Workability: Can be cold worked to enhance strength without compromising ductility.
Applications
The MP35N Cobalt Alloy Bar is used in industries requiring high strength and corrosion resistance. Key applications include:
- Medical Devices: Surgical implants, orthopedic cables, and dental tools.
- Aerospace: Fasteners, springs, and high-stress components.
- Oil & Gas: Valve components and downhole tools exposed to corrosive environments.
- Chemical Processing: Equipment for handling acids and aggressive chemicals.
- Marine: Shafts and fittings in saltwater environments, outperforming Stellite 6 in specific conditions.
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 33.0–37.0 |
| Cobalt (Co) | Balance |
| Chromium (Cr) | 19.0–21.0 |
| Molybdenum (Mo) | 9.0–10.5 |
| Iron (Fe) | 1.0 max |
| Titanium (Ti) | 1.0 max |
| Carbon (C) | 0.025 max |
Mechanical Properties
| Property | Value (Annealed) | Value (Cold Worked) |
|---|---|---|
| Tensile Strength | 900 MPa | 1800 MPa |
| Yield Strength (0.2% offset) | 400 MPa | 1500 MPa |
| Elongation | 40% | 10% |
| Hardness (Rockwell C) | 20 HRC | 50 HRC |
| Density | 8.43 g/cm³ | 8.43 g/cm³ |
Chemical Properties
MP35N Cobalt Alloy Bar exhibits excellent resistance to corrosive environments:
- Acids and Alkalis: Superior resistance to sulfuric, hydrochloric, and nitric acids, as well as alkaline solutions.
- Seawater: Exceptional performance in marine environments, resisting pitting and crevice corrosion better than Stellite 6b.
- Environmental Limits: Performs best below 600°C; prolonged exposure to higher temperatures may affect mechanical properties.
Things to Note (Limitations)
- High Temperatures: Prolonged exposure above 600°C can reduce strength and corrosion resistance.
- Cost: Higher cost compared to alloys like Stellite 12 due to complex composition and processing.
- Machining Challenges: Work-hardens during machining; requires specialized tools and techniques.
Corrosion Data for MP35N Cobalt Alloy Rod
| Environment | Corrosion Rate (mm/year) | Conditions | Notes |
|---|---|---|---|
| Stagnant Seawater | 0.005 | 25°C, 12 months exposure | Minimal pitting observed |
| 10% Sulfuric Acid | 0.01 | 30°C, 3 months exposure | Excellent resistance |
| 10% Hydrochloric Acid | 0.015 | 25°C, 1 month exposure | Good resistance |
| Atmospheric (Coastal, Humid) | <0.002 | 25°C, 12 months exposure | No visible corrosion |
| 5% Sodium Hydroxide (Alkaline) | 0.008 | 40°C, 3 months exposure | Excellent resistance |
| 5% Nitric Acid | 0.012 | 30°C, 3 months exposure | Superior to Haynes 25 in this condition |
Welding and Manufacturing Tips
- Welding: Use TIG or MIG welding with matching MP35N filler metals. Preheating is not required, but post-weld heat treatment can enhance properties.
- Forming: Can be cold worked to increase strength; hot working should be done between 980°C and 1150°C.
- Machining: Use carbide tools at low speeds with heavy feeds to manage work-hardening; suitable for round bar production.
- Fabrication: Ideal for applications requiring precision forging or rolling, such as MP35N round bar components.
Customer Reviews
Frequently Asked Questions
Q1: How does MP35N Cobalt based Alloy Rod compare to Stellite 6 or Haynes 25?
A: MP35N Cobalt Alloy Bar offers higher tensile strength and better corrosion resistance than Stellite 6, and superior fatigue resistance compared to Haynes 25, making it ideal for demanding applications.
Q2: Can MP35N Cobalt based Alloy Rod be used in medical implants?
A: Yes, MP35N is biocompatible and corrosion-resistant, making it suitable for medical implants like orthopedic cables and stents.
Q3: What industries commonly use MP35N Cobalt Alloy Rod?
A: It’s widely used in medical, aerospace, oil & gas, chemical processing, and marine industries for applications requiring strength and corrosion resistance.
Q4: How can I obtain a quote for MP35N Cobalt Alloy Bar price?
A: Simply contact our sales team with your project details, and we’ll provide a customized quote for MP35N Cobalt Alloy Bar price within 24 hours.
Q5: Is MP35N Cobalt based Alloy Rod suitable for high-temperature applications?
A: It performs well up to 600°C, but prolonged exposure to higher temperatures may affect its properties. Consult our team for specific high-temperature uses.
Q6: What surface finishes are available for MP35N round bar?
A: We offer MP35N round bar in cold drawn, hot rolled, polished, or custom finishes. Contact us to discuss the best option for your application.