
1J79 Seamless Tubes: Precision Magnetic Solutions
1J79 seamless tubes are engineered from a nickel-iron soft magnetic alloy, offering ultra-high permeability and low coercivity for demanding applications. With 78-80% nickel content, these tubes combine superior magnetic performance with robust mechanical properties.
Key Features:
-
Ultra-High Permeability: μi ≥40,000, μm ≥200,000.
-
Low Coercivity: Hc ≤0.8 A/m.
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Thermal Stability: Consistent performance from -60°C to 120°C.
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Precision Fabrication: Inner diameters as small as 0.2 mm, with ±0.003 mm tolerance.
Applications:
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Electronics & Telecommunications: Transformer cores, inductors, magnetic shielding.
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Energy Sector: Current sensors, power conversion systems, renewable energy inverters.
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Industrial Processing: Magnetic separators, fluxgate sensors, actuator components.
Benefits:
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Energy Efficiency: 30% lower core losses vs. silicon steel.
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Design Flexibility: Cold formable to complex geometries.
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Temperature Stability: <2% permeability variation over operating range.
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Long Lifecycle: 10+ years of reliable service.
Contact us to explore how 1J79 can enhance your engineering project
Grades |
|
Chemical Composition(wt)% |
|
|
C |
Cr |
Ni |
Ti |
Fe |
Co |
Mn |
Si |
Mo |
Cu |
W |
P |
S |
Al |
Nb |
V |
B |
Zr |
O+N |
H |
1J79 |
|
0.03 |
- |
80 |
- |
rest |
- |
0.6 |
0.5 |
- |
0.2 |
- |
0.02 |
0.02 |
- |
- |
- |
- |
- |
- |
- |
|
- |
- |
78.5 |
- |
- |
- |
0.1 |
0.3 |
3.8 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Detailed Photos

Jiangsu Zhongxing Nickel Alloy Co., Ltd. is a leading manufacturer specializing in the research, development, and production of seamless pipes and capillary coils. With a factory spanning 16,000 square meters, we offer a diverse range of products, including nickel alloys, high-temperature alloys, nickel-copper alloys, nickel-titanium alloys, Invar alloys, soft magnetic alloys, and other alloy materials.
Our technical team has achieved world-leading levels through years of technological improvement and innovation, developing domestically produced technologies that are high-performance, high-quality, and high-yield.
Our company is certified under ISO 9001, EU PED, and China TS for pressure pipeline systems, ensuring our commitment meeting and going beyond what international industry standards' required. Each product undergoes rigorous quality control and performance testing, and has accumulated rich OEM/ODM production experience for international market supply.



Q1:Are you a factory or trade company?
A1: A Factory and A subsidiary international trade company for export.
Q2:Where is your factory?
A2:Our company is located in Huaian city, China, which is well equipped with kinds of machines.
Q3: How do you control quality?
A3: Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.
Q4: What are the advantages of your company?
A4: We have many professional and technical personnel, more competitive prices and better after-sales service than other companies.
Q5: Can you arrange the shipment?
A5: Sure, we can help you with the shipment. We have forwarders who have cooperated with us for many years.
Q6: How about the delivery time?
A6: It is based on the order, normally within 30 days after receiving your advance payment.
Q7: Can you provide sample?
A7: Small samples in store can be provided for free.
Please contact us for more information today!