Precision 1J85 Pipe & Tube, please note that the above table provides a range of standard thicknesses, widths, and lengths for Precision Alloy.
- Dimensions:
- Outside Diameter: Φ6 – Φ200mm
- Wall Thickness: 0.35 – 60mm
- Length: ≤ 12000mm
- Certification: ISO, SGS, BV and so on.
- *Customized size needs to be confirmed with us
- Shapes: Angle, Hexagon, Square, Channel, Round,etc.
- Grades: 1J22 soft magnetic alloy, 1J50 soft magnetic alloy, 1J79 Permalloy, 1J85 Permalloy, 4J32(Super-Invar), 4J36, 4J29Kovar alloy, 4J42Kovar alloy, Cobalt-based elastic alloy 3J21, 6026, 6J22, 50HXC.
Precision 1J85 Pipe of Size And Specifications
1J85 is a high-permeability nickel-iron soft magnetic alloy designed for applications requiring exceptional magnetic response in weak fields. As part of the super-permalloy family, it delivers superior performance in precision sensors, magnetic shielding, and telecommunications equipment.
Huaxiao Metal Supplier provides all sizes of Precision alloy pipe for sale. Customized specifications are available upon request. Additionally, the exact chemical composition and mechanical properties may vary slightly within the ranges listed, depending on the specific alloy formulation and production process. Custom sizes are also available upon request. Welcome to inquire, and learn about more details about the alloy pipe.
Alloy Specification Precision 1J85 Pipe
1J79 Permalloy Pipe/Tube Alloy is classified as a precision soft magnetic alloy. It exhibits high permeability in weak magnetic fields, with a saturation induction ranging from 0.65 to 0.75 T. The alloy is characterized by a high squareness of the hysteresis loop and a low coefficient of magnetization reversal, which contribute to its excellent magnetic performance.
Parameter | Specification |
---|---|
Standard | GB/T 15018, ASTM A753 Type 4 |
Form | Seamless cold-drawn tubes, welded pipes |
OD Range | 0.5mm – 80mm (±0.02mm tolerance) |
Wall Thickness | 0.05mm – 3mm (±2% tolerance) |
Length | Custom (max 5m for seamless) |
Surface Finish | Mirror polished (Ra<0.2μm) |
Certification | MIL-N-14411C, RoHS |
Chemical Composition of Precision 1J85 Pipe
Element | Content | Function |
---|---|---|
Nickel (Ni) | 79-81% | Maximizes permeability |
Iron (Fe) | Balance | Magnetic matrix |
Molybdenum (Mo) | 4.8-5.2% | Reduces anisotropy |
Copper (Cu) | 0.3-0.6% | Enhances ductility |
Manganese (Mn) | 0.30-0.60% | Sulfur control |
Silicon (Si) | ≤0.20% | Deoxidation |
Carbon (C) | ≤0.02% | Minimizes aging |
Critical Notes:
Precise Ni/Mo/Cu balance optimizes domain wall mobility
Ultra-low impurities ensure consistent magnetic properties



Physical Properties of Precision 1J50 Tube
Property | Value | Test Standard |
---|---|---|
Density (g/cm³) | 8.75 | ASTM B311 |
Melting Point (°C) | 1430-1460 | – |
Thermal Conductivity (W/m·K) | 24.0 | ASTM E1225 |
Electrical Resistivity (μΩ·m) | 0.60 | IEC 60468 |
CTE (10⁻⁶/°C, 20-100°C) | 12.0 | ASTM E228 |
Curie Temperature (°C) | 450 | – |
Mechanical Properties of Precision 1J50 Pipe
Property | Value |
---|---|
Tensile Strength (MPa) | 380-450 |
Yield Strength (MPa) | 150-220 |
Elongation (%) | 40-50 |
Hardness (HV) | 90-120 |
Fatigue Limit (MPa) | 120 (10⁷ cycles) |
Work Hardening Effects:
Cold working increases strength by 10-15%
Final annealing at 1150°C in hydrogen restores optimal μ
Please note that the above specifications are typical and may vary slightly based on the manufacturer, production batch, and specific application requirements. For precise specifications and availability, it is recommended to consult with a supplier or manufacturer of Precision alloy pipes. Huaxiao Metal Manufacturer also provides other shapes of Precision products, such as strip, sheet&plate, coil, bar, wire&mesh. The price is affordable and suitable.
Comparison with Similar Alloys:
Property | 1J85 | 1J79 | Mu-Metal |
---|---|---|---|
μi | >100,000 | 50,000 | >100,000 |
Hc (A/m) | <4 | <8 | <4 |
Cost Factor | 1.5 | 1.2 | 2.0 |
What are the Precision 1J85 Pipe Benefits?

Precision 1J85 Pipe offers a multitude of benefits that make it an ideal choice for a wide range of applications. Precision Alloy Pipe offers a combination of high precision, enhanced mechanical properties, corrosion resistance, high temperature resistance, customizability, improved efficiency and reliability, and a wide range of applications. These benefits make it an ideal choice for a variety of demanding applications across multiple industries.Welcome to Huaxiao Metal Manufacturer to request the price, trust you can be satisfied in the alloy products and buy our products in quickly. Our services are in providing comprehensive and support to clients.
Precision 1J85 Pipe Applications and Uses
Huaxiao Metal Supplier provides all kinds of precision alloy pipe in the world. Welcome to inquiry and ask for the price.
- Radio-Electronic Industry: 1J79 Permalloy Pipe/Tube Alloy is widely used in the manufacture of magnetic cores for transformers, chokes, and relays operating in weak fields. It is also used in magnetic shields to block magnetic fields.
- Precision Instruments: The alloy is used in the manufacture of high-precision magnetic components for precision instruments, such as magnetic sensors and magnetic amplifiers.
- Remote Control and Automatic Control Systems: The alloy is used in the manufacture of magnetic components for remote control and automatic control systems, such as magnetic switches and magnetic sensors.
- Other Industries: The alloy is also used in the manufacture of magnetic recording heads, pulse transformers, and solid-state relays.
Industry | Application | Critical Requirement |
---|---|---|
Aerospace | Fluxgate sensors | μ stability in weak fields |
Medical | MRI magnetic shields | >90dB attenuation |
Telecom | Waveguide isolators | Low insertion loss |
Scientific | SQUID detectors | Ultra-low noise |
Defense | Submarine degaussing | Corrosion resistance |



Precision 1J85 Tube Advantages
- High Magnetic Permeability: The alloy’s relative permeability can reach up to 100,000, significantly higher than ordinary steel, which typically has a permeability of several thousand. This makes 1J79 Permalloy ideal for use as magnetic core material in electrical and electronic equipment.
- Low Coercivity: The low coercivity of 1J79 Permalloy reduces energy loss during magnetization and demagnetization cycles, improving the efficiency of magnetic devices.
- Near-Zero Magnetostriction: The near-zero magnetostriction of the alloy allows it to be used in thin films where variable stresses would otherwise cause significant variations in magnetic properties. This is critical for industrial applications requiring high precision and stability.
- Significant Anisotropic Magnetoresistance: The alloy exhibits significant anisotropic magnetoresistance, which can be utilized in magnetic sensors and other devices.
Alloy FactoryTips for Procurement and Cost-Effectiveness
- Direct Purchasing: Purchasing directly from manufacturers can reduce intermediate links, lower procurement costs, and improve technical and after-sales service quality.
- Competitive Bidding: For bulk purchases, competitive bidding should be adopted to obtain the lowest price through mutual price comparison among suppliers.
- Multiple Suppliers: Finding multiple suppliers for the same material and making them compete with each other can give the company an advantage in negotiations.
- Long-Term Contracts: Signing long-term contracts with reputable suppliers can not only ensure the quality and timely delivery of goods but also obtain price concessions.
- Market Research: Conducting market research and collecting information on procurement markets can help understand market conditions and price trends, enabling the company to make informed procurement decisions.



Alloy Procurement and Cost-Effectiveness
The procurement of 1J79 Permalloy Pipe/Tube Alloy should focus on suppliers with good reputations and stable product quality. The price of the alloy is influenced by factors such as market supply and demand, exchange rate fluctuations, and production costs. For example, if a company imports the alloy from overseas, the choice of foreign currency and exchange rate trends should be carefully considered to reduce procurement costs.
Manufacturing and Cost
The manufacturing process of 1J79 Permalloy Pipe/Tube Alloy involves melting, casting, hot rolling, cold rolling, and heat treatment. The cost of manufacturing is influenced by factors such as raw material prices, energy consumption, labor costs, and equipment depreciation. To reduce manufacturing costs, companies can optimize the production process, improve production efficiency, and reduce waste.
Pricing Insights
The price of 1J79 Permalloy Pipe/Tube Alloy varies depending on factors such as market supply and demand, production costs, and quality. According to market information, the price of the alloy ranges from approximately 32.00to175.00 per kilogram, depending on the specifications, quantity, and supplier. For example, cold-rolled strips with a thickness of 0.1 mm and a width of 20 mm have an initial permeability of no less than 10,000 mH/m and a maximum permeability of no more than 58,870 mH/m. The price of such strips may vary depending on the supplier and the quantity purchased.
Alloy Factory
Huaxiao Metal Supplier provides professional services and reasonable prices, offering customers the best quality products. The Precision Alloy Pipe Alloy Factory is a specialized manufacturing facility dedicated to the production of high-quality precision alloy bars. This factory combines advanced technology, rigorous quality control, and experienced personnel to ensure the production of precision alloy pipes that meet the highest standards.The factory is equipped with state-of-the-art production equipment and machinery, capable of producing precision alloy pipes with precise dimensions and consistent quality. Welcome to require, and ask to the price.



Pricing Insights
Base Price: $120-180/kg
Market Trends:
10-15% annual price fluctuation
Increasing demand for quantum sensor components
Thin-wall premium: +30-50% for <0.2mm walls
OD (mm) Wall (mm) Price (USD/m) 2 0.1 $80-120 10 0.5 $150-220 50 1.0 $300-450 Procurement Strategies:
✔ Minimum order 20m for best pricing
✔ Require hydrogen annealing certification
✔ Verify magnetic property testing reports
Manufacturing & Processing
Tube Production:
Seamless: Multi-stage cold drawing
Welded: Laser welding with Ar shielding
Critical Processes:
Bright annealing in dry hydrogen atmosphere
Final stress relief at 500°C
Machining:
Carbide tools with low cutting speeds
Cost Drivers:
Nickel price volatility (75% of material cost)
Precision dimensional control (+25-40%)
Specialized annealing requirements
- Excellent formability for complex geometries
- Consistent performance after forming/stamping
In Conclusion
1J85 pipe/tube alloy represents the pinnacle of soft magnetic performance:
✔ Unmatched permeability for precision instruments
✔ Superior shielding capability vs. conventional alloys
✔ Reliable performance in critical applications
Selection Guide:
Ultra-sensitive detection: 1J85
Cost-performance balance: 1J79
Maximum shielding: Mu-Metal
Future Outlook:
Additive manufacturing development
Nanocrystalline versions for higher frequency use
Space-qualified formulations
This analysis demonstrates why 1J85 remains indispensable for cutting-edge electromagnetic systems.
Precision 1J79 Permalloy Pipe/Tube Alloy, also known as 1J79 soft magnetic alloy tube or E11c Permalloy tube, is a nickel-iron (Ni-Fe) magnetic alloy renowned for its exceptional magnetic properties. Invented in 1914 by physicist Gustav Elmen at Bell Telephone Laboratories, 1J79 Permalloy has become a staple in the electrical and electronics industries due to its high magnetic permeability, low coercivity, and near-zero magnetostriction. This alloy is particularly suited for applications requiring high sensitivity and efficiency in magnetic fields, such as transformers, chokes, relays, and magnetic shields.