Permalloy Bar and Rod

George Metals is a reliable Houston, USA-based manufacturer and supplier of specialty metal alloys with high-quality Permalloy Bars and Rods for sophisticated industrial and electronic applications. Permalloy products are renowned for their remarkable magnetic properties and are designed for application in sensitive electromagnetic environments. George Metals is dedicated to precision manufacturing, rigorous quality control, and timely delivery. Used for industries like electronics, telecommunications, and aerospace, the business is known throughout the USA as well as global markets for providing stable solutions in soft magnetic materials with a proven track record of performance and technical assistance.

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Permalloy Round Bars

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Permalloy Square Rods

What is Permalloy Bar and Rod?

The chemical composition of Permalloy Bar and Rod consists mainly of about 80% nickel and 20% iron, although options may involve small percentages of molybdenum or chromium. This nickel-iron alloy is famous for its high magnetic permeability, low coercivity, and low core loss. The offering—Permalloy Bar and Rod—is characterized by superior mechanical strength, electrical conductivity, and soft magnetic performance. It can be cold-worked or annealed depending on the usage requirements and comes in various dimensions to cater to electromagnetic shielding, core, and component fabrication applications in precision electronics.

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Permalloy Bar and Rod Specification

Standards :	—
Thickness :	Range from .008″ to .0125″
Hardness :	Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Form :	Bar
Tungsten Grades	HA 190 / HA 1925 / HA 195 / HE 390 / HE 3925 / HE 395 / HE 397

Chemical Compositions of Permalloy Bar

	C	P	S	Mn	Si	Ni	Cr	Co	Mo	Cu	Fe
1J46	≤0.03	≤0.02	≤0.02	0.6-1.1	0.15-0.30	45-46.5	–	–	–	≤0.2	Balance
1J50	≤0.03	≤0.02	≤0.02	0.3-0.6	0.15-0.30	49-50.5	–	–	–	≤0.2	Balance
1J79	≤0.03	≤0.02	≤0.02	0.6-1.1	0.30-0.50	78.5-81.5	–	–	3.8-4.1	≤0.2	Balance
1J85	≤0.03	≤0.02	≤0.02	0.3-0.6	0.15-0.30	79-81	–	–	4.8-5.2	≤0.2	Balance

Permalloy Bar Mechanical Properties

Grade	Resisitivity (μΩ•m)	Desinty (g/cm3)	CuriePoint℃	HighSaturatedmagneto-strictioncoefficient λθ/10-6	Brinellhardness HBS		σbTensile Strength MPa		σsYieldStrength MPa		Elongation (%)δ
Grade	Resisitivity (μΩ•m)	Desinty (g/cm3)	CuriePoint℃	HighSaturatedmagneto-strictioncoefficient λθ/10-6	unan- nealed	an- nealed	unan- nealed	an- nealed	unan- nealed	an- nealed	unan- nealed	an- nealed
1J46	0.45	8.2	400	25	170	130	735		735		3
1J50	0.45	8.2	500	25	170	130	785	450	685	150	3	37
1J79	0.55	8.6	450	2	210	120	1030	560	980	150	3	50
1J85	0.56	8.75	400	0.5	–	–	–	–	–	–	–	–

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Permalloy Bar and Rod Types

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Permalloy Bar and Rod Uses

Permalloy Bars and Rods are extensively used in electronic and electromagnetic devices that require high magnetic performance. Some of the common applications are magnetic shielding, transformer cores, inductors, sensors, recording heads, and relays. They are best suited for reducing magnetic interference in communication systems, medical imaging equipment, and aerospace instrumentations. They are used in defense and scientific research equipment too where magnetic accuracy is the key. Permalloy’s special property of augmenting magnetic field control gives it a central place in the development of sophisticated electrical and signal-sensitive systems.

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