Cobalt chromium iron nickel alloys are high-performance materials known for their excellent corrosion resistance, mechanical strength, and high-temperature stability. These alloys are commonly used in aerospace, medical implants, chemical processing, and high-temperature industrial applications. Purchasing directly from factories allows buyers to access competitive pricing while ensuring material quality and full specification compliance.
Overview of Cobalt Chromium Iron Nickel Alloy
This class of alloys combines cobalt, chromium, iron, and nickel in various proportions to create a material with superior strength, wear resistance, and corrosion resistance. Popular grades include CoCrFeNi alloys often used for high-performance engineering applications, including superalloys, corrosion-resistant components, and biomedical implants.
Chemical Composition
| Element | Typical Range (%) |
|---|---|
| Cobalt (Co) | 30–40 |
| Chromium (Cr) | 15–25 |
| Iron (Fe) | 10–25 |
| Nickel (Ni) | 20–35 |
| Molybdenum (Mo) | 0–5 |
| Carbon (C) | ≤ 0.1 |
| Manganese (Mn) | ≤ 2 |
| Silicon (Si) | ≤ 1 |
Physical & Mechanical Properties
| Property | Typical Value |
|---|---|
| Density | 8.2–8.5 g/cm³ |
| Melting Point | 1300–1450 °C |
| Tensile Strength | 700–1100 MPa |
| Yield Strength | 400–750 MPa |
| Elongation | 25–50% |
| Hardness (HRB) | 80–100 |
Standards and Equivalents
Cobalt chromium iron nickel alloys are produced according to ASTM and ASME standards. Equivalent grades in different systems may include CoCrFeNi-based superalloys, which are optimized for corrosion resistance, high-temperature applications, and wear resistance.
Available Forms and Sizes
These alloys are available in multiple forms, including round bars, sheets, plates, tubes, and strips. Diameters, thicknesses, and lengths can be customized according to application requirements, with options for hot-rolled, cold-rolled, or annealed conditions.
Applications
| Industry | Application |
|---|---|
| Aerospace | Turbine blades, engine components, high-temperature structural parts |
| Medical | Orthopedic implants, dental implants, surgical instruments |
| Chemical Processing | Corrosion-resistant piping, reactors, heat exchangers |
| Marine | Pumps, valves, and seawater-exposed components |
| Power Generation | Boiler tubes, turbine components, superalloy structures |
Factory Pricing & Cost Factors
Pricing depends on alloy composition, size, shape, quantity, and market conditions. Bulk orders reduce per-kilogram costs. Example price ranges are:
| Form / Size | Price per kg (USD) | Notes |
|---|---|---|
| Round Bar 10–50 mm | 60–85 | General engineering applications |
| Sheets / Plates 2–20 mm | 55–80 | Structural and corrosion-resistant use |
| Tubes / Pipes | 65–90 | High-temperature and chemical applications |
Factory Sourcing Tips
- Request direct quotations from certified factories to secure factory pricing.
- Specify grade, size, length, finish, and heat treatment.
- Order in bulk to lower unit costs.
- Request material test certificates to verify chemical composition and mechanical properties.
- Plan for production and shipping lead times, especially for custom sizes.
Handling and Storage
- Store in a clean, dry environment to prevent surface contamination.
- Avoid exposure to strong oxidizing acids or abrasive chemicals.
- Use proper cutting, forming, and welding techniques.
- Inspect for surface defects or cracks before use.
Quality Assurance and Testing
| Test / Certificate | Purpose |
|---|---|
| Material Test Certificate (MTC) | Certifies chemical composition and mechanical properties |
| Dimensional Inspection | Verifies size, tolerance, and straightness |
| Non-destructive Testing | Detects internal defects such as cracks or voids |
| Positive Material Identification (PMI) | Confirms correct alloy grade |
Factory vs Distributor Purchase
| Aspect | Factory Purchase | Distributor Purchase |
|---|---|---|
| Unit Price | Lower | Higher due to markup |
| Lead Time | Longer for custom orders | Shorter for stocked items |
| Customization | High | Limited |
| Certification | Full mill-level certification | May lack traceability |
Related Questions:
1. What is the factory price of cobalt chromium iron nickel alloy?
The factory price typically ranges from 55 to 90 USD per kilogram depending on form, size, and composition.
2. What forms are available for cobalt chromium iron nickel alloys?
These alloys are available in round bars, sheets, plates, tubes, and strips, with customizable diameters, thicknesses, and lengths.
3. What are the main applications of cobalt chromium iron nickel alloys?
They are used in aerospace, medical implants, chemical processing, marine applications, and power generation due to their corrosion resistance, high-temperature stability, and mechanical strength.
English 
Korean 
Japanese 
Arabic 
Spanish 
German 
Portuguese 
French 
Russian 
Italian