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4j44 Iron Nickel Alloy Bar – Trusted Iron Nickel Alloy Bar Manufacturer in China
The 4j47 Iron Nickel Alloy Bar is a precision-engineered material widely used in industrial applications due to its exceptional thermal and mechanical properties. This nickel-iron alloy is known for its excellent dimensional stability, low expansion coefficient, and high resistance to various environmental conditions. These characteristics make it an ideal choice for components in scientific instruments, aerospace systems, and electronic devices.
Price: Contact Us for a Custom Quote
For pricing inquiries and customized orders, please contact our sales team. Terms for the 4j44 Iron Nickel Alloy Bar include competitive rates and tailored solutions to meet your industrial needs.
Specifications
- Diameter: 5–100 mm
- Length: Up to 6 meters
- Surface Treatment: Polished, pickled, or customized
- Tolerance: ±0.05 mm
- Standards: ASTM, GB/T, or per customer specifications
- Finish: Bright, matte, or coated
Key Features (Advantages)
- Low Thermal Expansion: Maintains stability across temperature changes, ideal for invar material applications.
- High Corrosion Resistance: Withstands harsh environments, enhancing durability.
- Superior Magnetic Properties: Perfect for electromagnetic applications.
- Customizable Dimensions: Tailored to specific project requirements by our China factory.
- Cost-Effective: Competitive pricing from a trusted manufacturer.
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) | 43.5-44.5 |
| lron (Fe) | Balance |
| Carbon (C) | ≤0.05 |
| Manganese (Mn) | ≤0.50 |
| Silicon (Si) | ≤0.30 |
| Sulfur (S) | ≤0.02 |
| Phosphorus (P) | ≤0.02 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 550-700 MPa |
| Yield Strength | 300-450 MPa |
| Elongation | ≥20% |
| Hardness (Brinell) | 140-180 HB |
| Density | 8.1 g/cm³ |
| lron Nickel Alloy Melting Point | ~1450°C |
Chemical Properties
- Acid Resistance: Moderate resistance to dilute acids; avoid prolonged exposure to strong acids like hydrochloric.
- Alkali Resistance: Excellent resistance to alkalis, suitable for caustic environments.
- Environmental Limitations: Best performance in neutral to mildly corrosive conditions; not recommended for highly acidic or saline environments without protective coatings.
Things to Note (Limitations)
- High Temperatures: Prolonged exposure above 600°C may reduce dimensional stability.
- Acidic Environments: Limited resistance to strong acids; coatings recommended.
- Mechanical Stress: Avoid excessive cold working to prevent work hardening.
- Magnetic Sensitivity: Handle with care in strong magnetic fields to maintain performance.
Corrosion Data for 4j44 Iron Nickel Alloy Bar
| Environment | Corrosion Rate (mm/year) | Notes |
|---|---|---|
| Atmospheric (Urban) | <0.01 | Excellent resistance |
| Seawater | 0.05-0.1 | Moderate; coatings advised |
| Dilute Sulfuric Acid | 0.1-0.5 | Limited resistance; use cautiously |
| Sodium Hydroxide (10%) | <0.01 | High resistance |
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 4j44 Iron Bar
Frequently Asked Questions
Q: What makes 4j44 different from other iron-nickel alloys?
A: Its controlled thermal expansion makes it ideal for precision applications.
Q: Can the bar be processed into custom dimensions?
A: Yes, we offer fully customizable sizing options.
Q: What is its melting point?
A: Approximately 1,450°C (2,642°F).
Q:Is it suitable for high-vacuum environments?
A: Absolutely, its low outgassing properties make it perfect for vacuum applications.
Q: How resistant is it to chemical corrosion?
A: It performs well in neutral and mildly acidic conditions but should be avoided in strongly oxidative environments.