Get in touch with us
Leave a message
4j50 Iron Nickel Alloy Pipe – China Manufacturer of Iron Nickel Alloy
The 4J50 Iron Nickel Alloy Pipe, also known as an invar material, is a precision-engineered nickel iron alloy designed for applications requiring minimal thermal expansion. Manufactured in China, this invar rod offers excellent dimensional stability, corrosion resistance, and magnetic properties, making it ideal for high-precision industries like aerospace, electronics, and vacuum sealing. Its unique iron-nickel composition ensures consistent performance in demanding environments.
Price: Contact Us for a Custom Quote
Contact us for a competitive quote on 4j50 Iron Nickel Alloy Pipe. Pricing terms are flexible and tailored to meet the needs of industrial and commercial buyers. Please reach out to request pricing details, including bulk order discounts.
Specifications
- Thickness: Customizable (0.5mm–10mm)
- Diameter Range: 5mm–200mm
- Length: Standard or custom-cut per request
- Surface Treatment: Bright, polished, or as specified
- Density: 8.21 g/cm³
- Melting Point: 1395–1425°C
- Resistivity: 0.44 μΩ·m
- Curie Point: 500°C
Key Features (Advantages)
- Low Thermal Expansion: Matches soft glass and ceramics for reliable sealing.
- Corrosion Resistance: Withstands atmospheric, freshwater, and seawater conditions.
- High Dimensional Stability: Maintains shape across temperature ranges.
- Superior Weldability: Supports multiple welding techniques for ease of fabrication.
- Magnetic Properties: Ideal for applications requiring controlled magnetism.
Applications
The 4J50 Iron Nickel Alloy Pipe is widely used in:
- Aerospace: Satellite components, fuel tanks, and precision instruments.
- Electronics: Relays, transformers, and impedance diaphragms.
- Vacuum Industry: Glass-to-metal sealing for electronic devices.
- Precision Measurement: Length measurement devices and scientific equipment.
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 49.5-50.5 |
| lron (Fe) | Balance(~48%) |
| Manganese (Mn) | ≤0.8 |
| Silicon (Si) | ≤0.3 |
| Carbon (C) | ≤0.05 |
| Phosphorus (P) | ≤0.02 |
| Sulfur (S) | ≤0.02 |
| Aluminum (Al) | ≤0.1 |
| Cobalt (Co) | s1.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 450-600 MPd |
| Yield Strength | ≥260 MPa |
| Elongation | ≥25% |
| Hardness | ≤200 HB |
Chemical Properties
- Mild Acids: Good resistance to dilute acids, suitable for moderate chemical environments.
- Alkalis: High resistance to alkaline conditions, ensuring longevity.
- Seawater: Moderate resistance, with potential for pitting in high-chloride environments.
- Atmospheric Conditions: Excellent resistance to rust and oxidation.
Things to Note (Limitations)
- High Temperatures: Performance may degrade above 400°C; testing recommended.
- Acidic Environments: Avoid prolonged exposure to highly acidic or chloride-rich conditions.
- Welding: Use low heat input to prevent distortion and maintain structural integrity.
Corrosion Data for 4j50 Iron Nickel Alloy Pipe
| Environment | Corrosion Rate (mm/year) | Notes |
|---|---|---|
| Atmospheric | <0.01 | Excellent rust resistance |
| Mild Acidic | 0.02-0.05 | Suitable for dilute acids |
| Alkaline | <0.01 | Highly resistant to alkalis |
| Seawater | 0.1-0.3 | Moderate, risk of pitting corrosion |
Contact us for detailed corrosion resistance data specific to your application.
Best Welding and Manufacturing Practices
- Welding Methods: TIG, MIG, resistance welding recommended for 4J50 Iron Nickel Alloy Pipe.
- Techniques: Use low heat input to avoid distortion; preheating not typically required.
- Forming: Easily machined and formed using standard alloy steel methods.
- Post-Weld Treatment: Stress relief at 540–650°C to enhance corrosion resistance.
What Customers Say About Our 4j50 Iron Pipe
Frequently Asked Questions
Q: What makes the 4j50 Iron Nickel Alloy Pipe unique?
A: Its precise thermal expansion control and excellent durability make it ideal for critical applications.
Q: How does this alloy compare to similar materials?
A: It offers superior thermal stability compared to standard nickel-iron alloys.
Q: Can it be customized?
A: Yes, dimensions and surface treatments can be tailored to specific requirements.
Q:What industries commonly use this material?
A: It’s widely used in electronics, aerospace, energy, and precision instrumentation.
Q: What is the melting point of the alloy?
A: The approximate melting range is 1430°C – 1450°C.