Cobalt alloys are high-performance materials known for their exceptional wear resistance, corrosion resistance, and high-temperature strength. These alloys are commonly used in aerospace, medical implants, turbine engines, tooling, and petrochemical applications. With rising demand in 2025, cobalt alloy suppliers worldwide are expanding production and offering a wide range of forms including bars, wires, sheets, powders, and cast parts. This article introduces key cobalt alloy suppliers, product types, major grades, and tips for choosing the right supplier.
Top Global Cobalt Alloy Suppliers
| Компания | Расположение | Main Grades Offered | Форма |
|---|---|---|---|
| Kennametal | США | Stellite 6, 12, 21 | Rods, powders, castings |
| Haynes International | США | Haynes 25, 188, 282 | Bars, plates, coils |
| Beijing Tongyizhong | Китай | CoCrMo, F75, CoCrW | Rods, forged parts |
| Plansee Group | Austria | Co-based superalloys | Powders, sintered parts |
| Shanghai HY Industry | Китай | Stellite, Haynes, CoCrMo | Round bars, plates, CNC parts |
Common Cobalt Alloy Grades
| Класс | Химический состав | Типовое применение |
|---|---|---|
| Stellite 6 | Co-Cr-W-C | Valve seats, cutting tools |
| F75 / ASTM F1537 | Co-Cr-Mo | Orthopedic implants, dental |
| Haynes 25 (L-605) | Co-Cr-W-Ni | Gas turbines, aerospace |
| CoCrW | Co-Cr-W | Hip stems, joint replacements |
| MP35N | Co-Ni-Cr-Mo | Medical, marine, oil tools |
Forms Available from Cobalt Alloy Suppliers
| Форма | Available Size Range | Типичные случаи использования |
|---|---|---|
| Круглый прут | Ø 4 mm – 200 mm | Machined parts, shafts, pins |
| Лист/пластина | 0.5 mm – 50 mm thick | Wear liners, medical parts |
| Проволока | Ø 0.1 mm – 5 mm | Dental archwires, stents |
| Порошок | –325 mesh, spherical | 3D printing, PTA welding |
| Casting/Investment | Custom geometry | Implants, aerospace nozzles |
How to Choose a Cobalt Alloy Supplier
1. Confirm Alloy Grade: Know the exact grade needed (e.g., Stellite 6, Haynes 25) based on wear, corrosion, or temperature requirements.
2. Check Certifications: Ensure supplier provides ISO 13485 (for medical), ASTM, AMS, or ISO9001 compliance.
3. Evaluate Experience: For aerospace or medical use, prioritize suppliers with proven track records in regulated sectors.
4. Request Testing: Demand mill test certificates (MTC), mechanical data, and chemical composition reports.
5. Consider Quantity: Some suppliers have high minimum order quantities (MOQ); ask for MOQ details and trial order options.
Связанные вопросы и ответы
What are the most common cobalt alloy grades offered by suppliers?
Popular grades include Stellite 6, CoCrMo (F75), Haynes 25, MP35N, and CoCrW, each used for specific wear, corrosion, or high-temperature applications.
Which countries are the top cobalt alloy suppliers?
USA, China, Germany, and Austria are leading countries offering cobalt alloy materials in various forms, with both OEM and custom manufacturing options.
Can cobalt alloy suppliers provide custom parts?
Yes, many suppliers offer forged, cast, or CNC-machined cobalt alloy components tailored to customer drawings or specifications, especially for aerospace and medical use.
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