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4j29 Iron Nickel Alloy Rod – Precision Alloy Rod from China Manufacturer
The 4j29 Iron Nickel Alloy Rod is a specialized material known for its excellent thermal expansion compatibility with glass and ceramics. This ensures a secure and durable bond in applications requiring hermetic seals. Its unique properties make it indispensable in aerospace, electronics, and medical industries.
Price: Contact Us for a Custom Quote
For pricing information on 4j29 Iron Nickel Alloy Rod, please get in touch to request a quote. Pricing is subject to quantity and specifications required.
Specifications
- Diameter Range: 2mm – 100mm
- Length: Customizable as per requirements
- Surface Treatment: Polished, oxidized, or as per specification
- Density: 8.1g/cm³
Key Features (Advantages)
- Exceptional thermal expansion properties
- Reliable performance in extreme temperatures
- High machinability and weldability
- Excellent bondability with glass and ceramics
Applications
- Manufacturing of electronic devices such as integrated circuits and transistors
- Construction of aerospace components and sensors
- Medical instruments requiring precision and durability
- Vacuum devices and hermetic seals
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 28.5–29.5 |
| Iron (Fe) | Balance (~53) |
| Cobalt (Co) | 16.8–17.8 |
| Carbon (C) | ≤0.03 |
| Silicon (Si) | ≤0.30 |
| Manganese (Mn) | ≤0.50 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 500–600 MPa |
| Yield Strength | 250–350 MPa |
| Elongation | ≥25% |
| Hardness (HB) | 120–160 |
Chemical Properties
- Acid Resistance: Moderate resistance to dilute acids (e.g., sulfuric, hydrochloric) in non-oxidizing conditions.
- Alkali Resistance: Good resistance to alkalis like sodium hydroxide.
- Environmental Limitations: Susceptible to pitting in high-chloride or oxidizing acid environments.
Things to Note (Limitations)
The 4J29 Iron Nickel Alloy Rod may experience pitting corrosion in high-chloride environments or oxidizing acids. Avoid prolonged exposure above 400°C to maintain thermal expansion properties. Careful composition control is needed to prevent phase changes.
Corrosion Data for 4j29 Iron Nickel Alloy Rod
| Environment | Corrosion Resistance |
|---|---|
| Atmospheric (Air) | Excellent |
| Fresh Water | Good |
| Sea Water | Moderate |
| Dilute Acids | Moderate |
| Oxidizing Acids | Poor |
Contact us for detailed corrosion resistance data specific to your application.
Best Welding and Manufacturing Practices
The invar rod supports multiple welding methods:
- TIG (Tungsten Inert Gas) welding
- MIG (Metal Inert Gas) welding
- Laser welding for precision
It can be cold-worked, machined, or formed similarly to stainless steel. Post-weld stress relief at 540–650°C is recommended for corrosive environments.
What Customers Say About Our 4j29 Iron Rod
Frequently Asked Questions
Q: What makes 4j29 Iron Nickel Alloy Rod unique?
A: Its thermal expansion properties match that of glass and ceramics, making it ideal for hermetic seals.
Q: How does this alloy differ from similar materials?
A: The precise composition of 4j29 ensures unparalleled bonding capabilities and stability.
Q: What industries commonly use this material?
A: Aerospace, electronics, medical devices, and vacuum technologies.
Q: Is this alloy suitable for high-temperature environments?
A: Yes, it performs well up to 450°C with stable properties.
Q: Can this material be welded easily?
A: Yes, it is compatible with TIG and MIG welding methods.