Permalloy Bar and Rod

Anucha Metals, a reputable manufacturer and supplier located in Bangkok, Thailand, specializes in high-quality Permalloy Bars and Rods tailored for industries that need advanced magnetic materials. With a high nickel-iron content, these bars and rods boast impressive magnetic permeability and low coercivity, making them perfect for precision engineering and electrical applications. Anucha Metals is committed to upholding international quality standards, ensuring that their Permalloy products are reliable and durable, performing exceptionally well in challenging environments. They cater to both local and global markets, offering competitive pricing and prompt delivery.

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Permalloy Round Bars

Permalloy Rectangular Bars

Permalloy Square Rods

What is Permalloy Bar and Rod?

The composition of Permalloy Bars and Rods is roughly 80% nickel and 20% iron, with small amounts of other elements added to enhance their properties. This nickel-iron alloy is famous for its outstanding magnetic permeability, low hysteresis loss, and minimal coercive force. On the mechanical side, Permalloy is known for its good ductility, machinability, and moderate strength, allowing for easy shaping and processing. Its exceptional magnetic qualities make it a go-to material for sensitive electromagnetic applications that require precision and reliability.

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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 Anucha Metals?

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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 find extensive use in industries that demand top-notch magnetic performance. They’re commonly used in transformers, inductors, magnetic shielding, and recording heads, where high magnetic permeability and low losses are essential. In the electronics sector, they serve as components in sensors, relays, and core materials for specialized electrical devices. The aerospace and defense industries utilize them in navigation and communication systems that require precise magnetic control. Moreover, Permalloy is crucial in scientific instruments and research applications, providing dependable performance in managing high-precision magnetic fields and reducing electromagnetic interference.

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