1J36 Soft Magnetic Alloy Tubes Precision Corrosion Resistant 0.1-6mm
1J36 Soft Magnetic Alloy Tubes – Precision, Corrosion-Resistant, and High Saturation Performance
Product Overview
1J36 soft magnetic alloy tubes, also known as Invar 36 or 4J36, are precision-engineered materials composed of approximately 36% nickel and the balance iron. These tubes are renowned for their ultra-low thermal expansion and exceptional magnetic properties, making them ideal for applications requiring high dimensional stability and low magnetic hysteresis.
Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤0.05 |
| Silicon (Si) | ≤0.30 |
| Manganese (Mn) | 0.20–0.60 |
| Phosphorus (P) | ≤0.02 |
| Sulfur (S) | ≤0.02 |
| Nickel (Ni) | 35.0–37.0 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 640–785 MPa |
| Yield Strength | 450–685 MPa |
| Elongation | ≥3% |
| Hardness (Hot Forged) | 188 HBW |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.1 g/cm³ |
| Electrical Resistivity | 0.78–0.80 μΩ·m |
| Curie Temperature | ~230°C |
| Thermal Conductivity | 10.5 W/(m·K) |
| Coefficient of Linear Expansion (20–200°C) | 1.5 × 10⁻⁶/°C |
Magnetic Properties
| Property | Value |
|---|---|
| Saturation Magnetization (Bs) | 1.20 T |
| Initial Permeability (μ₀.40) | ≥6.00 mH/m |
| Maximum Permeability (μₘₐₓ) | ≥25.00 mH/m |
| Coercivity (Hc) | ≤10 A/m |
Standards
1J36 alloy tubes conform to international standards, including:
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SAE AMS 7718B
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DIN 17405
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GB/T 15018-1994
Applications
1J36 soft magnetic alloy tubes are extensively used in:
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Precision Instruments: Components requiring minimal thermal expansion and high dimensional stability.
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Cryogenic Engineering: Materials that maintain structural integrity at low temperatures.
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Aerospace: Parts that must withstand extreme thermal conditions without significant expansion.
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Electronics: Magnetic shielding and components in devices sensitive to temperature variations.
FAQs
Q1: What are the primary advantages of 1J36 soft magnetic alloy tubes?
A1: The key advantages include ultra-low thermal expansion, high saturation magnetization, low coercivity, and excellent dimensional stability over a wide temperature range.
Q2: How does the Curie temperature affect the performance of 1J36 alloy tubes?
A2: The Curie temperature (~230°C) indicates the temperature above which the material loses its magnetic properties. Below this temperature, 1J36 maintains its magnetic characteristics, ensuring reliable performance in various applications.
Q3: Are 1J36 soft magnetic alloy tubes suitable for high-frequency applications?
A3: Yes, due to their high initial permeability and low coercivity, 1J36 alloy tubes are ideal for high-frequency applications where efficient magnetic response is crucial.
Q4: Can 1J36 alloy tubes be used in corrosive environments?
A4: While 1J36 alloy tubes offer some resistance to corrosion, for highly corrosive environments, additional protective coatings or material selections may be necessary to ensure longevity and performance.
Conclusion
1J36 soft magnetic alloy tubes are engineered to meet the demanding requirements of precision applications, offering unmatched thermal and magnetic stability. Their adherence to international standards and exceptional material properties make them a preferred choice for industries where performance and reliability are paramount
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