Soft Magnetic Invar 1J85 Alloy Powder Description
Soft Magnetic Invar 1J85 Alloy Powder is a specialized material made from an Invar alloy (often referred to as 1J85) that is primarily composed of iron (Fe) and nickel (Ni). Invar alloys, like 1J85, are known for their low coefficient of thermal expansion (CTE), meaning they expand and contract very little with temperature changes. This makes them highly valuable in applications where dimensional stability is crucial, particularly in environments with varying temperatures.
The "soft magnetic" properties of the alloy refer to its ability to become magnetized and demagnetized easily, making it suitable for magnetic applications where the material does not retain magnetization once the magnetic field is removed.
In powder form, Invar 1J85 alloy is used in various advanced manufacturing techniques like additive manufacturing, powder metallurgy, and metal injection molding (MIM).
Soft Magnetic Invar 1J85 Alloy Powder Specifications
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Grade
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1J85
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Composition
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Iron, Nickel
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Particle Size
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15-53μm, 45-105μm, or customized
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Appearance
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Grey powder
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Melting Point
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1395-1425℃
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Theoretical Chemical Composition, %
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Mn
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Ni
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Cr
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C
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Si
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P
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S
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Fe
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Mo
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0.3-0.6
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79-81
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0.02
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≤0.03
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0.15-0.3
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0.005
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0.003
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Bal
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4.95
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Soft Magnetic Invar 1J85 Alloy Powder Applications
- Precision Instruments: Invar 1J85 is often used in manufacturing micrometers, thermometers, measuring tapes, and other high-precision devices where minimal thermal expansion is critical.
- Magnetic Shielding: Its soft magnetic properties make it useful for shielding electronic devices from external magnetic fields.
- Electromagnetic Components: It is used in the production of components like transformers, inductors, and magnetic coils.
- Aerospace and Automotive: Invar alloys are employed in the aerospace and automotive industries for components exposed to fluctuating temperatures, such as engine parts and aircraft structures.
- Optical Equipment: The alloy’s thermal stability is beneficial for optical systems and telescopes that require minimal expansion or contraction with temperature variations.
Soft Magnetic Invar 1J85 Alloy Powder Packing
Our products are typically packaged in PE (polyethylene) bags to ensure secure containment and prevent contamination. For materials sensitive to moisture or oxidation, we offer vacuum-sealed packaging to maintain product stability and purity. The packaging is customizable based on the product’s quantity and specifications, allowing us to meet specific customer needs.
Packaging: PE Bags, Cartons, or Customized.
FAQs
Q1. What is Soft Magnetic Invar 1J85 Alloy Powder?
Soft Magnetic Invar 1J85 Alloy Powder is a specialized alloy composed of 64% nickel (Ni) and 36% iron (Fe) with soft magnetic properties and a very low coefficient of thermal expansion (CTE). It is used in applications requiring high dimensional stability over a wide range of temperatures. The powder is typically produced using methods like gas atomization and is suitable for advanced manufacturing techniques such as 3D printing and powder metallurgy.
Q2. What are the key properties of Soft Magnetic Invar 1J85 Alloy Powder?
- Low thermal expansion: The alloy has an exceptionally low CTE, making it ideal for applications that require high dimensional stability, even with temperature fluctuations.
- Soft magnetic properties: It can be easily magnetized but does not retain magnetization once the external magnetic field is removed. This makes it suitable for electromagnetic applications.
- Corrosion resistance: The high nickel content provides the alloy with good resistance to corrosion, making it durable in various environmental conditions.
- Spherical powder: The powder’s spherical shape enhances its flowability and packing density, making it ideal for additive manufacturing and powder metallurgy.
Q3. What are the applications of Soft Magnetic Invar 1J85 Alloy Powder?
Soft Magnetic Invar 1J85 Alloy Powder is commonly used in:
- Precision instruments: Devices such as micrometers, thermometers, and other measuring tools that require minimal expansion due to temperature changes.
- Magnetic shielding: Protecting sensitive electronics from external electromagnetic interference (EMI).
- Electromagnetic components: Parts like transformers, inductors, and magnetic coils that require soft magnetic behavior.
- Aerospace: Components used in aircraft or spacecraft that are exposed to fluctuating temperatures.
