Permalloy Bar and Rod

Mourad Metals, located in Tunis, Tunisia, stands out as a top manufacturer and supplier of high-performance alloys, particularly known for their PERMALLOY BAR AND ROD. With a strong focus on quality, precision, and durability, Mourad Metals serves industries that demand exceptional magnetic and structural properties. Their cutting-edge manufacturing facilities ensure that every bar and rod adheres to strict international standards, guaranteeing reliable performance even in the toughest conditions. Thanks to their advanced metallurgical expertise, Mourad Metals caters to a wide range of clients in aerospace, electronics, and industrial sectors, delivering products that boast impressive mechanical strength, corrosion resistance, and consistent dimensional accuracy.

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Permalloy Round Bars

Permalloy Rectangular Bars

Permalloy Square Rods

What is Permalloy Bar and Rod?

The PERMALLOY BAR AND ROD is made up of about 80% nickel and 20% iron, with a few trace elements added to boost its magnetic properties. This alloy is known for its high magnetic permeability, low coercivity, and excellent temperature stability, making it perfect for precision magnetic applications. On the mechanical side, it offers moderate tensile strength along with good ductility and machinability, which allows for detailed shaping without sacrificing structural integrity. Heat treatment can further enhance its magnetic features, while the alloy remains dimensionally stable under both mechanical and thermal stress, ensuring dependable performance in sensitive electrical and magnetic devices.

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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 Mourad Metals?

Packaging

Modern Equipments

Expert Engineers

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Efficient Factories

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 BAR AND ROD finds its place in various applications that require precise magnetic performance and stability. It’s crucial in the production of magnetic cores, transformers, inductors, and magnetic shielding for electronic devices. Moreover, it plays a vital role in aerospace and defense components where accurate magnetic response is essential. The alloy’s unique blend of strength, corrosion resistance, and magnetic properties also makes it ideal for sensors, measuring instruments, and specialized electrical devices. Its versatility empowers engineers to create compact, high-efficiency designs.

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