Chromium nickel alloys are high-performance materials combining the strength and corrosion resistance of nickel with the hardness and oxidation resistance of chromium. These alloys are widely used in chemical processing, high-temperature applications, aerospace, and marine industries. Purchasing directly from factories allows buyers to access competitive pricing while ensuring material quality and compliance with specifications.
Overview of Chromium Nickel Alloy
Chromium nickel alloys are composed mainly of nickel and chromium, often with small amounts of iron, carbon, and other trace elements. They are engineered to offer excellent corrosion resistance, high-temperature stability, and mechanical strength, making them ideal for harsh environments. Common grades include Inconel 600, Inconel 625, and Incoloy 825.
Chemical Composition
| Element | Typical Range (%) |
|---|---|
| Nickel (Ni) | 50–70 |
| Chromium (Cr) | 14–23 |
| Iron (Fe) | Balance |
| Molybdenum (Mo) | 2–10 |
| Copper (Cu) | 0–4 |
| Carbon (C) | ≤ 0.1 |
| Manganese (Mn) | ≤ 2 |
| Silicon (Si) | ≤ 1 |
Physical & Mechanical Properties
| Property | Typical Value |
|---|---|
| Density | 8.4–8.5 g/cm³ |
| Melting Point | 1350–1420 °C |
| Tensile Strength | 550–850 MPa |
| Yield Strength | 250–500 MPa |
| Elongation | 30–50% |
| Hardness (HRB) | 75–95 |
Standards and Equivalents
Chromium nickel alloys are manufactured according to ASTM and ASME standards. Common equivalents include UNS N06600 (Inconel 600), UNS N06625 (Inconel 625), and UNS N08825 (Incoloy 825). These standards ensure consistent chemical composition, mechanical properties, and performance under high temperatures and corrosive environments.
Available Forms and Sizes
Factory suppliers provide chromium nickel alloys in multiple forms including round bars, sheets, plates, tubes, and strips. Diameters and thicknesses vary according to grade and customer requirements. Lengths and surface finishes can be customized to meet specific applications.
Applications of Chromium Nickel Alloy
| Industry | Application |
|---|---|
| Chemical Processing | Heat exchangers, reactors, piping resistant to acids and alkalis |
| Marine | Seawater piping, pumps, valves |
| Aerospace | Engine components, exhaust systems |
| Power Generation | Boiler tubes, turbine components, high-temperature pressure vessels |
| Electronics | Connectors, conductive components, battery elements |
Factory Pricing & Cost Factors
The factory price of chromium nickel alloys depends on the grade, diameter, thickness, quantity, and market conditions. Bulk orders usually reduce the per-kilogram cost. Example price ranges are as follows:
| Grade | Price per kg (USD) | Notes |
|---|---|---|
| Inconel 600 | 40–60 | General corrosion resistant alloy |
| Inconel 625 | 50–75 | High strength, oxidation resistant |
| Incoloy 825 | 45–70 | Corrosion resistant in acid environments |
Factory Sourcing Tips
- Request direct quotations from certified factories.
- Specify grade, size, length, finish, and heat treatment.
- Place bulk orders to achieve lower unit costs.
- Ask for material test certificates to verify chemical composition and mechanical properties.
- Consider lead time and shipping logistics when ordering internationally.
Handling and Storage
- Store in a dry, clean environment to avoid surface contamination.
- Avoid contact with strong oxidizing acids or abrasive chemicals.
- Use proper tools and techniques when cutting, bending, or welding.
- Inspect bars or sheets for defects before processing or installation.
Quality Assurance and Testing
| Test / Certificate | Purpose |
|---|---|
| Material Test Certificate (MTC) | Ensures 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 | Shorter for stocked items |
| Customization | High | Limited |
| Certification | Full mill-level certification | May lack traceability |
Related Questions:
1. What is the factory price of chromium nickel alloy?
Factory prices typically range from 40 to 75 USD per kilogram depending on the grade and form of the alloy.
2. What forms are available for chromium nickel alloys?
Chromium nickel alloys are available as round bars, sheets, plates, tubes, and strips, with customizable diameters, thicknesses, and lengths.
3. What are the main applications of chromium nickel alloys?
They are used in chemical processing, marine, aerospace, power generation, and electronics due to their corrosion resistance, high-temperature strength, and durability.
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