Permalloy 1J79/1J85
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of permalloy 1j79/1j85 in China. If you're going to wholesale high quality permalloy 1j79/1j85 made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Permalloy refers to ferro-nickel alloy, which has a wide range of nickel content between 35% and 90%. The most important feature of Permalloy is its high magnetic conductivity of weak magnetic field. Their saturated magnetic induction strength is generally between 0.6 and 1.0T.
1J79 /1J85 Similar to Super Permalloy 80 High Initial Permeability Transformers Magnetic Shielding Material
Permalloy is a nickel–iron magnetic alloy, with about 80% nickel and 20% iron content. it is notable for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment, and also in magnetic shielding to block magnetic fields. Commercial permalloy alloys typically have relative permeability of around 100,000, compared to several thousand for ordinary steel. In addition to high permeability, its other magnetic properties are low coercivity, near zero magnetostriction, and significant anisotropic magnetoresistance. The low magnetostriction is critical for industrial applications, allowing it to be used in thin films where variable stresses would otherwise cause a ruinously large variation in magnetic properties. Permalloy's electrical resistivitycan vary as much as 5% depending on the strength and the direction of an applied magnetic field. Permalloys typically have the face centered cubic crystal structure with a lattice constant of approximately 0.355 nm in the vicinity of a nickel concentration of 80%. A disadvantage of permalloy is that it is not very ductile or workable, so applications requiring elaborate shapes, such as magnetic shields, are made of other high permeability alloys such as mu metal.
Chemical Composition
| Material Type | C | P | S | Mn | Si | Ni | Cr | Co | Mo | Cu | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1J76 | ≤0.03 | ≤0.02 | ≤0.02 | 0.30-0.60 | 0.15-0.30 | 75.0-76.5 | 1.80-2.20 | - | - | 4.80-5.20 | Balance |
| 1J77 | ≤0.03 | ≤0.02 | ≤0.02 | 0.30-0.60 | 0.15-0.30 | 75.0-78.0 | - | - | 3.90-4.50 | 4.80-6.00 | Balance |
| 1J79 | ≤0.03 | ≤0.02 | ≤0.02 | 0.60-1.10 | 0.30-0.50 | 78.5-80.0 | - | - | 3.80-4.10 | ≤0.20 | Balance |
| 1J80 | ≤0.03 | ≤0.02 | ≤0.02 | 0.60-1.10 | 1.10-1.50 | 79.0-81.5 | 2.60-3.00 | - | - | ≤0.30 | Balance |
| 1J85 | ≤0.03 | ≤0.02 | ≤0.02 | 0.30-0.60 | 0.15-0.30 | 79.0-81.0 | - | - | 4.80-5.20 | ≤0.20 | Balance |
| 1J86 | ≤0.03 | ≤0.02 | ≤0.02 | ≤1.00 | ≤0.30 | 80.5-81.5 | - | - | 5.80-6.20 | - | Balance |
High starting magnetic conductivity soft magnetic alloy AC magnetic property
|
Material Type |
Process Type |
Strip Thickness |
Elastic magnetic conductivity at different frequencies when the magnetic field strength peak is 0.1A | |||
| 60Hz | 400Hz | 1KHz | 10kHz | |||
| Not Less Than | ||||||
|
1J79 |
Cold Roll |
0.02 | – | – | 14000(17.5) | 10000(12.5) |
| 0.05 | – | – | 15040(18.8) | 7520(9.4) | ||
| 0.1 | – | 18000(22.5) | 12000(15) | – | ||
| 0.2 | – | 10000(12.5) | 6000(7.5) | – | ||
| 0.35 | 25 | 7040(8.8) | – | – | ||
|
1J85 |
Cold Roll |
0.02 | – | – | 16000(20) | 12000(12.5) |
| 0.05 | – | – | 25040(31.3) | 9040(11.3) | ||
| 0.1 | – | 25040(31.3) | 20000(25) | – | ||
| 0.2 | – | 19040(23.8) | 8000(10) | – | ||
| 0.35 | 38 | 10000(12.5) | – | – | ||
1J85 Physical Performance:
| Resistivity | Harness | Thermal expansion coefficient | Saturated magnetic induction | Initial Permeability | Maximum Permeability | Coercive force |
|---|---|---|---|---|---|---|
| 0.56μΩ•m | 130-240HB | 0.5×10-6/℃ | >0.78T | >30mH/m | >115mH/m | <2.4A/m |
1J79/1J85 Available Shape
1J79/1J85 Size Range
Bars & Rods & Foring Ring /Flanges
Sheet & Plate
Strip & Coil
Welding Wire &Spring wire
Seamless Tube & Welded Pipe
1J79 1J85 ApplicationsI
1J79 has good comprehensive performance which is suitable for making high frequency and low voltage transformer, leakage protection switch core, common mode inductor core and current transformer core.
The initial permeability of 1J85 can reach more than one hundred thousand (105), which is suitable for making low-frequency or high-frequency input and output transformers, common mode inductances and high-precision current transformers used in weak signals.
FAQ
Q: How do you control quality ?
A: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.
Q: What are the advantages of your company ?
A: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.
Q: Can you provide sample ?
A: Yes. We can provide the small samples in stock for free, as long as you contact us.Customized samples will take about 5-7 days.
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