1J50 alloy products
Material Family / Precision

1J50

Soft magnetic Fe-Ni alloy with high permeability and low coercivity for transformer cores and magnetic shielding.

Introduction

§01General

1J50 is a Chinese soft magnetic alloy (50% Ni-Fe) offering high initial permeability, low coercivity and high saturation induction. It is the standard material for instrument transformer cores, magnetic amplifiers, relay armatures and electromagnetic shielding applications.

GB/T 14986IEC 60404-8-6

Quick Facts

Density
8.2 g/cm³
Max Service Temp
450°C
Series
Precision

Available Product Forms

§02Forms
WireStripPlate & SheetBar & Rod

Key Characteristics

§03Features
High initial permeability (>30,000)
Low coercivity (<8 A/m)
High saturation induction
Good cold formability
High-temperature annealing required

Typical Uses

§04Applications
Instrument transformer cores
Magnetic amplifier laminations
Relay and solenoid armatures
Electromagnetic shielding
Sensor and transducer cores

Frequently Asked Questions

1J50 FAQ

What is 1J50 used for?

1J50 is a Precision alloy used in Instrument transformer cores and Magnetic amplifier laminations. It offers High initial permeability (>30,000) and Low coercivity (<8 A/m).

What is the chemical composition of 1J50?

1J50 is a controlled-composition Precision alloy supplied to GB/T 14986 and IEC 60404-8-6. Contact us for full mill test certificate with heat-specific chemistry.

What forms is 1J50 available in?

1J50 is regularly supplied in Wire, Strip, Plate & Sheet, Bar & Rod. Custom forms and dimensions available on request.

What is the maximum service temperature of 1J50?

1J50 is rated for service up to 450°C. Contact our metallurgy team for specific application recommendations.

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