FE6542 Soft Magnetic Invar 1J85 Alloy Powder

Soft Magnetic Invar 1J85 Alloy Powder Description

Soft Magnetic Invar 1J85 Alloy Powder is a specialised material from an Invar alloy (often referred to as 1J85), primarily composed of Iron (Fe) and Nickel (Ni). Invar alloys such as 1J85 are known for their low coefficient of thermal expansion (CTE), meaning they expand and contract minimally with temperature changes. This characteristic makes them particularly valuable for applications where dimensional stability is crucial, especially in environments with fluctuating temperatures.

The term "soft magnetic" describes the alloy's capability to be easily magnetised and demagnetised, making it suitable for magnetic applications where the material does not retain magnetisation once the magnetic field is removed.

In powdered form, the Invar 1J85 alloy is utilised in various advanced manufacturing processes such as additive manufacturing, powder metallurgy, and metal injection moulding (MIM).

Specifications for Soft Magnetic Invar 1J85 Alloy Powder

Theoretical Chemical Composition, %

Applications of Soft Magnetic Invar 1J85 Alloy Powder

• Precision Instruments: Invar 1J85 is commonly used in the manufacturing of micrometers, thermometers, measuring tapes, and other high-precision devices where minimal thermal expansion is critical.
• Magnetic Shielding: Due to its soft magnetic properties, it is suitable for shielding electronic devices from external magnetic fields.
• Electromagnetic Components: It is used in the production of components such as transformers, inductors, and magnetic coils.
• Aerospace and Automotive Industries: Invar alloys are utilised in the aerospace and automotive sectors for components exposed to fluctuating temperatures, such as engine parts and aircraft structures.
• Optical Devices: The thermal stability of the alloy is beneficial for optical systems and telescopes, which require minimal expansion or contraction under temperature variations.

Soft Magnetic Invar 1J85 Alloy Powder Packaging

Our products are typically packaged in polyethylene (PE) bags to ensure secure storage and avoid contamination. For materials sensitive to moisture or oxidation, we offer vacuum-sealed packaging to maintain product integrity and purity. Packaging can be customised based on the product quantity and specifications, allowing us to cater to specific customer requests.

Packaging: PE bags, cartons, or customised.

Frequently Asked Questions

Q1. What is soft magnetic Invar 1J85 alloy powder?

Soft magnetic Invar 1J85 alloy powder is a specialist alloy consisting 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 accuracy over a wide temperature range. The powder is typically produced using methods such as gas atomisation and is suitable for advanced manufacturing techniques, including 3D printing and powder metallurgy.

Q2. What are the key properties of soft magnetic Invar 1J85 alloy powder?

• Low Thermal Expansion: The alloy exhibits an exceptionally low thermal expansion coefficient, making it ideal for applications demanding high stability even under temperature variations.
• Soft Magnetic Properties: It can be easily magnetised but does not retain magnetisation once the external magnetic field is removed, making it suitable for electromagnetic applications.
• Corrosion Resistance: The high Nickel content endows the alloy with good corrosion resistance, ensuring durability under various environmental conditions.
• Spherical Powder: The spherical shape of the powder 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 instruments that require minimal expansion due to temperature changes.
• Magnetic Shielding: Protecting sensitive electronics from external electromagnetic interference (EMI).
• Electromagnetic Components: Parts such as transformers, inductors, and magnetic coils that require soft magnetic behaviour.
• Aerospace: Components in aircraft or spacecraft that are exposed to fluctuating temperatures.