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4j36 Iron Nickel Alloy Tube – China Manufacturer of Iron Nickel Alloy
The 4j36 Iron Nickel Alloy Tube, also known as an invar alloy tube, is a precision-engineered material with a consistent low thermal expansion rate. This makes it ideal for applications requiring exceptional dimensional stability across varying temperatures. Commonly utilized in aerospace, electronics, and precision instruments, this product offers unmatched reliability for critical operations.
Price: Contact Us for a Custom Quote
For pricing and quotes on the 4j36 Iron Nickel Alloy Tube, please contact us to discuss your specific requirements. Pricing terms, including bulk discounts and delivery options, are available upon inquiry.
Specifications
- Outer Diameter: 6mm–150mm
- Wall Thickness: 0.5mm–10mm
- Length: Up to 12 meters (customizable)
- Surface Treatment: Polished, annealed, or as per customer requirements
- Standards: ASTM F1684, GB/T 15018
- Forms: Seamless or welded invar tubes
Key Features (Advantages)
The 4J36 Iron Nickel Alloy Tube is widely used in:
- Aerospace: Precision components like gyroscopes and satellite frames.
- Electronics: Thermostats and precision instruments requiring invar material stability.
- Scientific Instruments: Laser systems and optical devices using invar pipes.
- Telecommunications: Antenna supports and waveguide tubes.
- Medical Devices: MRI equipment due to low thermal expansion of nickel-iron alloy.
Applications
The 4j44 Iron Nickel Alloy Bar is widely used in:
- Aerospace: Structural components, satellite frameworks
- Electronics: Precision sensors, magnetic shielding
- Telecommunications: Waveguide tubes, signal transmission
- Scientific Instruments: Laser systems, optical devices
- Energy Sector: Components requiring dimensional stability
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 35.0-37.0 |
| lron (Fe) | Balance |
| Manganese (Mn) | ≤0.6 |
| Silicon (Si) | ≤0.3 |
| Carbon (C) | ≤0.05 |
| Phosphorus (P) | ≤0.02 |
| Sulfur (S) | ≤0.02 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 450-550 MPa |
| Yield Strength (0.2%) | 280-350 MPa |
| Elongation | ≥30% |
| Hardness (Brinell) | 130-160 HB |
| Density | 8.1 g/cm* |
| Melting Point | ~1430°C (iron-nickel alloy melting point) |
Chemical Properties
- Acid Resistance: Moderate resistance to dilute acids (e.g., sulfuric, hydrochloric) but avoid prolonged exposure to concentrated acids.
- Alkali Resistance: Excellent resistance to alkalis like sodium hydroxide, suitable for caustic environments.
- Environmental Limitations: Not recommended for highly oxidizing conditions or prolonged exposure to strong acids.
Things to Note (Limitations)
- Temperature Limits: Avoid use above 200°C as thermal expansion increases slightly, affecting invar material performance.
- Oxidizing Environments: Limited resistance in highly oxidizing conditions, such as nitric acid exposure.
- Mechanical Stress: High stress in thin-walled invar tubes may lead to deformation if not properly supported.
Corrosion Data for 4j36 Iron Nickel Alloy Tube
| Environment | Corrosion Rate (mm/year) | Performance |
|---|---|---|
| Atmospheric (Rural) | <0.01 | Excellent |
| Atmospheric (Marine) | 0.01-0.05 | Good |
| Mild Chemical (pH 5-9) | <0.02 | Excellent |
| Dilute Sulfuric Acid | 0.05-0.1 | Moderate (short-term use only) |
Contact us for detailed corrosion resistance data specific to your application.
Best Welding and Manufacturing Practices
Recommended Welding Methods:
- TIG (Tungsten Inert Gas): Preferred for precision and minimal distortion.
- MIG (Metal Inert Gas): Suitable for thicker sections.
- Laser Welding: Ideal for high-precision applications.
Forming Techniques: Cold forming recommended; avoid excessive bending to prevent cracking.
Processing: Machinable with standard tools; annealing may be required post-forming to restore properties.
What Customers Say About Our 4j36 Iron Tube
Frequently Asked Questions
Q: How is the 4j36 Iron Nickel Alloy Tube different from standard alloy tubes?
A: The low coefficient of thermal expansion sets it apart, ensuring stability in temperature-sensitive applications.
Q: What industries commonly use 4j36 Iron Nickel Alloy Tubes?
A: Aerospace, electronics, and industrial tooling are the primary sectors utilizing this alloy.
Q: Is the 4j36 Iron Nickel Alloy Tube resistant to corrosion?
A: Yes, it provides excellent resistance in neutral environments but requires coatings for strong acidic or alkali exposure.
Q:Can I customize the tube dimensions?
A: Yes, specifications like thickness, width, and surface treatment can be tailored to customer needs.
Q: What is the typical lead time for a bulk order?
A: Lead times vary based on order quantity, but standard production is usually completed within 3-4 weeks.