Soft Magnetic Alloy 1J85 Bars & Rods for High-Permeability Applications

1J85 precision alloy bar is a high-performance precision magnetic material composed primarily of iron and nickel, with the nickel content ranging from 80% to 85%. Known for its excellent high permeability and low coercivity, 1J85 is ideal for applications that require efficient magnetic induction and shielding. This alloy is often referred to as Permalloy 85 or High-Permeability Nickel Alloy, and is available in a variety of forms, including round bars, rods, and wire. These bars are manufactured to exact specifications, ensuring consistent magnetic performance across applications.

1J85 bars have a sleek, metallic silver-gray appearance and are heat-treated for superior magnetic properties. Whether used in magnetic shielding, core materials, or sensors, 1J85 alloy provides reliable and high-performing solutions.

Key Characteristics of 1J85 Soft Magnetic Alloy

• High Initial Magnetic Permeability: 1J85 exhibits excellent initial permeability, making it suitable for low-frequency applications.

• Low Coercivity: The alloy's low coercive force ensures easy magnetization and demagnetization, crucial for sensitive electronic components.

• Stable Magnetic Properties: 1J85 maintains consistent magnetic performance under low-frequency alternating fields, ensuring reliability over time.

• Good Magnetic Shielding Ability: Ideal for use in applications where protection from external magnetic fields is required.

• Easy to Machine and Form: After appropriate annealing, 1J85 is easy to machine and shape, allowing for precise fabrication.

• Versatile Forms: Available in round bars, customizable lengths, and bright surface finishes, with or without machining.

 

Comparison Parameter Table

Alloy Grades

C

S

P

Mn

Si

Ni

Cr

Co

Mo

Cu

Al

Nb

Fe

Other Elements

1J06

0.04

0.015

0.015

≤0.10

≤0.15

-

-

-

-

-

5.5-6.5

-

Rest

-

1J12

0.03

0.015

0.015

≤0.10

≤0.15

-

-

-

-

-

11.6-12.4

-

Rest

-

1J17

0.03

0.02

0.02

≤0.60

≤0.20

-

15.5-16.5

-

-

-

-

-

Rest

-

1J18

0.03

0.02

0.02

0.3-0.7

≤0.15

0.5-0.7

17-18.5

-

-

-

-

-

Rest

Ti: 0.3-0.7

1J22

0.04

0.02

0.02

≤0.3

≤0.3

≤0.5

-

49-51

-

≤0.2

-

-

Rest

V: 0.8-1.8

1J30

0.04

0.02

0.02

≤0.40

≤0.30

29.5-30.5

-

-

-

-

-

-

Rest

-

1J36

0.03

0.02

0.02

≤0.60

≤0.20

35.0-37.0

-

-

-

-

-

-

Rest

-

1J38

0.03

0.05

0.02

0.3-0.6

0.15-0.3

37.5-38.5

12.5-13.5

-

-

-

-

-

Rest

-

1J46

0.03

0.02

0.02

0.6-1.1

0.15-0.3

45.0-46.5

-

-

-

≤0.2

-

-

Rest

-

1J50

0.03

0.02

0.02

0.3-0.6

0.15-0.3

49-50.5

-

-

-

≤0.2

-

-

Rest

-

1J51

0.03

0.02

0.02

0.3-0.6

0.15-0.3

49-50.5

-

-

-

≤0.2

-

-

Rest

-

1J54

0.03

0.02

0.02

0.3-0.6

1.1-1.4

49.5-51

3.8-4.2

-

-

≤0.2

-

-

Rest

-

1J76

0.03

0.02

0.02

0.3-0.6

0.15-0.3

75.0-76.5

1.8-2.2

-

-

4.8-5.2

-

-

Rest

-

1J77

0.03

0.02

0.02

0.3-0.6

0.15-0.3

75.5-78

-

-

3.9-4.5

4.8-6.0

-

-

Rest

-

1J79

0.03

0.02

0.02

0.6-1.10

0.3-0.5

78.5-80.0

-

-

3.8-4.1

≤0.2

-

-

Rest

-

1J80

0.03

0.02

0.02

0.6-1.10

1.1-1.5

79.0-81.5

2.6-3.0

-

-

≤0.2

-

-

Rest

-

1J85

0.03

0.02

0.02

0.3-0.60

0.15-0.3

79.0-81.0

-

-

4.8-5.2

≤0.2

-

-

Rest

-

1J87

0.03

0.02

0.02

0.3-0.6

≤0.3

78.5-80.5

-

-

1.6-2.2

-

-

6.5-7.5

Rest

-

 

Technology Behind 1J85 Soft Magnetic Alloy Bars

The production of 1J85 soft magnetic alloy bars involves several advanced manufacturing processes:

1. Precision Melting: The alloy is first melted using precise methods to ensure uniform distribution of its components.

2. Hot Rolling and Cold Drawing: These techniques are used to form the material into its final shape while maintaining the necessary mechanical properties.

3. Controlled Atmosphere Annealing: To enhance the material's soft magnetic performance, 1J85 undergoes controlled atmosphere annealing. This process optimizes the grain structure and reduces internal stresses, ensuring superior permeability and minimal core losses in low-frequency AC circuits.

These processes result in 1J85 bars with high magnetic response and a steep B-H curve, which indicates minimal applied magnetic field requirements for magnetic saturation, making it an excellent choice for electromagnetic applications.

Applications of 1J85 Soft Magnetic Alloy Bars

1J85 soft magnetic alloy bars are widely used across several industries due to their high permeability and excellent performance in weak magnetic fields. Some key applications include:

• Magnetic Shielding: Used in aerospace, electronics, and sensitive equipment to shield against external magnetic interference.

• Magnetic Cores: Ideal for magnetic cores in transformers, chokes, and relays, where high permeability and low coercivity are required.

• Sensors and Actuators: Commonly used in devices requiring soft magnetic characteristics for precise sensor readings and actuator movements.

• Precision Current Transformers: Essential for applications in current transformers and flux gates that demand high precision.

• Magnetic Heads and Signal Processing Devices: Utilized in devices like magnetic heads for data storage and signal processing systems for their stable magnetic response

 

Advantages of 1J85 Soft Magnetic Alloy Bars

• Excellent Performance in Low-Frequency Circuits: 1J85 is perfect for low-frequency magnetic circuits, providing optimal performance in electromagnetic applications.

• Customizable Sizes and Lengths: 1J85 alloy bars can be tailored to meet specific industry needs, enabling rapid prototyping.

• Smooth Surface Finish: The bars are manufactured with a bright surface finish, which can be further machined if necessary, ensuring high-quality results.

• Stable Magnetic Properties: The alloy maintains its magnetic characteristics over time and temperature, ensuring long-term reliability.

• Full Inspection Reports: Comprehensive inspection reports, including chemical, mechanical, and magnetic properties, are available to ensure quality and consistency.

 

• about US
• about DLX ALLOY

• CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, Precision Alloy , FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.

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• about Our factory

• Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.

• For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQ (Frequently Asked Questions)

Q: What is your working time and contact information?
A: Our working hours are Monday to Saturday from 7:30 AM to 5:00 PM (Beijing time, GMT+08:00). We have public holidays during May 1st-3rd, October 1st-7th, and Chinese New Year. Please email us during holidays if you have any questions.

Q: Do you provide free samples?
A: Yes, we can provide free samples for testing. However, buyers are responsible for shipping costs.

Q: What are your payment terms?
A: We accept various payment methods, including T/T, L/C, D/A, D/P, Western Union, MoneyGram, and PayPal.

Q: What is the lead time?
A: The typical lead time for samples is 7 days after payment /confirm/iation. Bulk orders may require additional time, depending on the quantity.