1J79 Soft Magnetic Alloy Tubes: Precision Engineering for Electromagnetic Excellence

Product Overview

1J79, also known as Ni79Mo4 or Permalloy, is a high-performance soft magnetic alloy composed primarily of nickel (78.5–80%) and iron, with molybdenum (3.8–4.1%) as a key component. This alloy exhibits exceptional magnetic properties, making it ideal for applications requiring high magnetic permeability and low coercivity. The alloy's face-centered cubic (FCC) crystal structure contributes to its superior magnetic characteristics.​

Chemical Composition

Physical and Mechanical Properties

Magnetic Properties

Applications

1J79 soft magnetic alloy tubes are extensively used in:​

• Magnetic amplifiers

• Magnetic regulators

• Current transformers

• Pulse transformers

• Electronic watch stepper motors

• High-precision computers

• Choke coils

• Magnetic shielding covers​

These applications benefit from 1J79's high magnetic permeability, low coercivity, and minimal magnetostriction.​

Frequently Asked Questions

Q1: What are the primary advantages of using 1J79 soft magnetic alloy tubes?

A1: The primary advantages include high magnetic permeability, low coercivity, minimal magnetostriction, and excellent dimensional stability, making them suitable for high-precision electromagnetic applications.​

Q2: In what industries are 1J79 tubes commonly used?

A2: 1J79 tubes are commonly used in the electronics, telecommunications, aerospace, and instrumentation industries, particularly in components like transformers and magnetic shields.​

Q3: What are the typical forms available for 1J79 alloy?

A3: 1J79 alloy is available in various forms, including tubes, wires, strips, bars, and foils, catering to diverse application requirements.​