Get in touch with us
Leave a message
Haynes 25 Cobalt Based Alloy Rod Manufacturer in China – High-Performance Solutions
The Haynes 25 Cobalt Based Alloy Rod, also known as L-605 or Haynes 25, is a cobalt-based superalloy renowned for its exceptional high-temperature strength, wear, and corrosion resistance. Compared to alloys like Stellite 6 or MP35N, it excels in extreme environments. As a leading Haynes 25 Cobalt Based Alloy Rod manufacturer in China, we supply premium-quality rods for industries requiring durability and performance under harsh conditions.
Price: Contact Us for a Custom Quote
For the most competitive pricing on Haynes 25 Cobalt Based Alloy Rod, reach out to our sales team directly. We offer customized quotes for Haynes 25 Cobalt Based Alloy Rod price based on your specific requirements, including dimensions, quantity, and delivery timelines. Contact us today to discuss your needs!
Specifications of Haynes 25 Cobalt Based Alloy Rod
- Diameter Range: 5 mm to 300 mm
- Length: Up to 6000 mm (custom lengths available)
- Surface Finish: Hot rolled, cold drawn, polished, or as per request
- Standards: AMS 5759, ASTM F90
- Shape Variants: Haynes 25 Round Bar, hexagonal bar
- Tolerances: As per ASTM standards or customer specifications
Key Features (Advantages)
- High-Temperature Strength: Retains strength up to 1000°C, surpassing Haynes 25 Stellite 12 in some applications.
- Wear Resistance: Excellent resistance to abrasion and galling, ideal for demanding conditions.
- Corrosion Resistance: Superior resistance to oxidation and sulfidation, outperforming Haynes 25 Stellite 6b in harsh environments.
- Fatigue Resistance: Exceptional performance under cyclic loading, a key advantage over MP35N in specific uses.
- Durability: Maintains mechanical properties in extreme heat, perfect for Haynes 25 Round Bar applications.
Applications of Haynes 25 Cobalt Based Alloy Rod
- Aerospace: Gas turbine components, combustion chambers, and exhaust valves using Haynes 25.
- Power Generation: Turbine blades, hot gas path components, and high-temperature fasteners.
- Medical: Surgical implants and dental tools due to biocompatibility and strength.
- Industrial Processing: Bearings, springs, and wear-resistant parts in high-heat environments.
- Oil & Gas: Valve stems and pump components exposed to corrosive and high-temperature conditions.
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Cobalt (Co) | Balance |
| Chromium (Cr) | 19.0–21.0 |
| Tungsten (W) | 14.0–16.0 |
| Nickel (Ni) | 9.0–11.0 |
| Iron (Fe) | 3.0 max |
| Manganese (Mn) | 1.0–2.0 |
| Carbon (C) | 0.05–0.15 |
Mechanical Properties
| Property | Value (Room Temp) | Value (1000°C) |
|---|---|---|
| Tensile Strength | 965 MPa (typical) | 400 MPa (typical) |
| Yield Strength (0.2% offset) | 450 MPa (typical) | 200 MPa (typical) |
| Elongation | 30% (typical) | 25% (typical) |
| Hardness (Rockwell C) | 20–25 HRC (typical) | 15–20 HRC (typical) |
| Density | 9.13 g/cm³ | 9.13 g/cm³ |
Chemical Properties
Haynes 25 Cobalt Based Alloy Rod exhibits strong resistance to various corrosive environments:
- Acids and Alkalis: Good resistance to sulfuric and nitric acids; moderate resistance to hydrochloric acid; excellent resistance to alkalis.
- Oxidation: Exceptional resistance to oxidation at high temperatures, outperforming Stellite 6 in oxidizing conditions.
- Environmental Limits: Best in oxidizing environments up to 1000°C; may experience reduced performance in strong reducing acids or prolonged exposure above 1100°C.
Things to Note (Limitations)
- Extreme Temperatures: Above 1100°C, strength and oxidation resistance may decline; not ideal for ultra-high-temperature applications.
- Reducing Environments: Limited resistance to strong reducing acids like concentrated hydrochloric acid; protective measures may be needed.
- Machining Challenges: High hardness requires slow speeds and specialized tools for Haynes 25 Round Bar production.
- Cost: Higher cost compared to alloys like Haynes 25 Stellite 12 due to its complex composition and processing.
Corrosion Data
| Environment | Corrosion Rate (mm/year) | Conditions | Notes |
|---|---|---|---|
| Stagnant Seawater | 0.015 | 25°C, 12 months exposure | Minimal pitting observed |
| 10% Sulfuric Acid | 0.025 | 30°C, 3 months exposure | Good resistance |
| 10% Hydrochloric Acid | 0.1 | 25°C, 1 month exposure | Moderate resistance; coatings advised |
| Atmospheric (Coastal, Humid) | <0.005 | 25°C, 12 months exposure | Excellent resistance |
| 5% Sodium Hydroxide (Alkaline) | 0.01 | 40°C, 3 months exposure | Excellent resistance |
| High-Temp Air (1000°C) | <0.010 | 1000°C, 6 months exposure | Superior to MP35N in oxidation |
Welding and Manufacturing Tips
- Welding: Use TIG or MIG welding with matching Haynes 25 filler metals; preheating to 200–300°C can reduce cracking risks; post-weld heat treatment is optional.
- Forming: Best formed in the annealed state; hot working should be done between 1050°C and 1200°C.
- Machining: Use carbide tools at low speeds with heavy feeds; suitable for producing Haynes 25 Round Bar but requires careful handling due to work-hardening.
- Heat Treatment: Solution annealing at 1175–1230°C followed by rapid cooling enhances strength and ductility.
Customer Reviews
Frequently Asked Questions
Q1: What distinguishes Haynes 25 Cobalt Alloy Rod from Stellite 6?
A: Haynes 25 Cobalt Based Alloy Rod offers superior high-temperature strength and fatigue resistance compared to Haynes 25 Stellite 6, which is better suited for wear resistance at lower temperatures, making Haynes 25 ideal for extreme heat applications.
Q2: Is Haynes 25 Cobalt Based Alloy Bar suitable for cryogenic environments?
A: While Haynes 25 Cobalt Based Alloy Rod excels at high temperatures, it maintains reasonable toughness at cryogenic levels, though it’s not optimized for such conditions compared to alloys like MP35N.
Q3: How does Haynes 25 Cobalt Alloy Rod perform in oxidizing environments compared to stainless steel?
A: Haynes 25 Cobalt Based Alloy Rod provides exceptional oxidation resistance up to 1000°C, far surpassing most stainless steels, which may oxidize or scale in similar high-temperature oxidizing conditions.
Q4: Can Haynes 25 Cobalt Alloy Bar be customized for specific applications?
A: Yes, we offer customization options such as specific diameters, lengths, and surface finishes for Haynes 25 Round Bar to meet your exact application requirements. Contact us to discuss your needs.
Q5: What quality assurances come with Haynes 25 Cobalt Based Alloy Rod?
A: Our Haynes 25 Cobalt Based Alloy Rod meets standards like AMS 5759 and ASTM F90, and we provide material test certificates (MTC) with each order, with additional testing available upon request.
Q6: Why is Haynes 25 Cobalt Alloy Rod preferred for aerospace components?
A: Haynes 25 Cobalt Based Alloy Rod is favored in aerospace for its high strength, excellent fatigue resistance, and ability to withstand extreme temperatures, making it perfect for turbine blades and combustion chambers.