Permalloy Bar and Rod

Neith Metals, located in Cairo, Egypt, stands out as a top manufacturer and supplier of high-quality Permalloy Bars and Rods, celebrated for their remarkable magnetic properties and precision engineering. The company is committed to delivering reliable materials that adhere to international standards, catering to industries that require outstanding magnetic performance and stability. With cutting-edge manufacturing technology and rigorous quality control, Neith Metals guarantees consistent excellence and durability in its products. Their Permalloy Bars and Rods are trusted across various industrial, electrical, and electronic applications, where high permeability and low coercivity are vital for effective magnetic performance.

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Permalloy Round Bars

Permalloy Rectangular Bars

Permalloy Square Rods

What is Permalloy Bar and Rod?

These Permalloy Bars and Rods mainly consist of nickel (about 80%) and iron (roughly 20%), with small amounts of elements like molybdenum, copper, or chromium added to boost performance. They showcase impressive magnetic properties, such as very high magnetic permeability, low coercive force, and minimal core losses. On the mechanical side, Permalloy boasts a tensile strength of around 450–550 MPa and good ductility, making fabrication a breeze. Its stable magnetic characteristics make it perfect for precision instruments, transformers, and magnetic shielding applications that require reliable magnetic behavior.

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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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Why Neith Metals?

Packaging

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Permalloy Bar and Rod Types

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Frequently Asked Questions (FAQ)

Are Permalloy BarSusceptible To Galvanic Corrosion?

Permalloy bars are generally not highly susceptible to galvanic corrosion, as they have good resistance to corrosion. However, when in contact with dissimilar metals, galvanic corrosion may still occur under certain conditions.

Can Permalloy Bar Be Welded?

Yes, Permalloy bars can be welded, but due to their high nickel content, specialized welding techniques, such as TIG or laser welding, and proper precautions are necessary to maintain magnetic properties.

What Sizes and Finishes Are Available for Permalloy Rod?

Permalloy rods are available in various sizes, typically ranging from 1/16" to 4" in diameter. Common finishes include bright, polished, or cold-drawn finishes, depending on the application requirements.

Permalloy Bar and Rod Uses

Permalloy Bars and Rods are extensively utilized in industries that depend on superior magnetic properties and minimal energy loss. They play a crucial role in the production of transformers, magnetic amplifiers, inductors, and recording heads. In the realms of telecommunications and electronics, they are employed in magnetic cores and sensors to ensure signal stability and efficiency. Their high permeability also makes them ideal for magnetic shielding, safeguarding sensitive instruments from external magnetic interference. Furthermore, they are used in aerospace, defense, and research applications where magnetic precision, durability, and reliability are essential for achieving top-notch performance.

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