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Cobalt-Based Alloys – Engineered for Heat, Corrosion & Wear Resistance
We supply cobalt alloys such as Stellite, Haynes, and custom cobalt-chromium compositions for extreme environments. Ideal for aerospace, turbines, medical implants, and industrial tools.
What Is a Cobalt-Based Alloy?
Cobalt-based alloys are high-performance metal materials composed primarily of cobalt, along with chromium, molybdenum, tungsten, and nickel. They are known for exceptional:
✅ High-temperature strength (retains strength up to 1000°C)
✅ Superior corrosion resistance
✅ Excellent wear and galling resistance
✅ Biocompatibility (in certain alloys)
Products Link
Optional product specifications
| Property | Details |
|---|---|
| Forms Available | Rod, bar, sheet, wire, casting blank, forging, powder |
| Grades | Stellite 6, 12, 21, 31 / Haynes 25, 188 / F75, F90, CoCrMo |
| Shapes | Round, flat, square, machined or forged blanks |
| Sizes | Rod: Ø4–200mm / Sheet: 0.5–50mm / Custom sizes |
| Standard | ASTM F75, F90, AMS 5387, ISO 5832-12 |
| Finish | Ground, polished, black, bright, solution-annealed |
* Powder metallurgy and CNC-prepared blanks available on request.
Applications
- Aerospace & Jet Engines – combustors, nozzles, bearings
- Medical Implants – orthopedic and dental alloys (CoCr)
- Valve Seats & Wear Parts – high-temperature corrosion & erosion
- Nuclear & Energy Systems – high-strength at elevated temperatures
- Petrochemical & Tooling – cutters, dies, corrosion-critical tools
Processing & Packaging
Precision surface grinding and polishing
Ultrasonic & PMI testing before dispatch
Anti-rust oil + vacuum sealed plastic wrap
Packed in wooden boxes or crates with ID labels
Why Choose Xishang?
- Full range of cast and wrought cobalt alloys
- Strict quality control with spectrometer and ultrasonic testing
- International certifications: ISO 13485, ASTM F75, CE (for medical)
- CNC machining + custom tolerance finishes
- Small batch trial supported with fast delivery
- Application consulting for special wear/corrosion environments
Frequently Asked Questions
Q1: What’s the main difference between Stellite and Haynes alloys?
A：Stellite is best for wear and erosion resistance; Haynes is preferred for high-temperature and oxidation environments.
Q2: Are cobalt alloys suitable for implants?
A：Yes, ASTM F75 and CoCrMo alloys are widely used in hip, knee, and dental implants due to biocompatibility.
Q3: Can you provide forged cobalt alloy blanks?
A：Yes. We supply both forged bars and cast + CNC machined forms.
Q4: Do you support small quantity or R&D orders?
A：Absolutely. We accept low-MOQ orders for testing or development.
Q5: What is the typical hardness of Stellite 6?
A：HRC 38–44 (as-cast), can reach 50+ after work hardening.
