1J85 Iron-Nickel Soft Magnetic Alloy(Permalloy 80): High Permeability and Low Coercivity in Weak Magnetic Fields

Product Overview: 1J85 Strip Soft Magnetic Alloy

The 1J85 Strip Soft Magnetic Alloy represents the pinnacle of nickel‑iron materials engineered for environments demanding exceptional magnetic responsiveness and structural stability. With a nickel content approaching 80% and a precise molybdenum addition, this precision‑crafted strip offers superior initial permeability, low coercivity, and consistent performance across a broad temperature range. Designed for seamless integration into transformers, inductors, magnetic amplifiers, and shielding devices, the 1J85 Strip delivers reliable attenuation of stray magnetic fields while maintaining minimal energy loss. Its controlled mechanical strength and ductility facilitate precision stamping and forming, enabling complex geometries without compromising magnetic properties. Whether deployed in high‑frequency sensors in Southeast Asia’s cutting‑edge electronics or robust relay cores across the Middle East’s power grids, this strip ensures peak efficiency. Engineered to conform to GB/T15018‑1994, GBn198‑1988, and GB/T14986‑2008 standards, the 1J85 Strip stands as a versatile solution for global applications, from automotive sensors in Europe to communication relays in the Americas

Key Specifications of 1J85 Strip

Below is a consolidated view of the 1J85 Strip’s core specifications, covering composition, mechanical performance, physical parameters, and applicable standards.

Chemical Composition of 1J85 Strip

Mechanical Performance of 1J85 Strip

Physical Parameters of 1J85 Strip

Execution Standards for 1J85 Strip

Applications

• Transformers & Inductors: Core laminations for power and signal transformers

• Magnetic Amplifiers & Chokes: Precision cores in power conditioning

• Pulse Transformers: High‑frequency pulse shaping and isolation

• Magnetic Shielding & Sensor Cores: Enclosures and flux paths in sensitive equipment

• High‑Sensitivity Relays: Armatures and pole pieces in telecom and automotive relays

Why Choose 1J85 Strip

• High-Performance Magnetic Response in 1J85 Strip ensures precise field control.

• 1J85 Strip’s elevated resistivity reduces eddy current losses in high‑frequency applications.

• Engineered for superior ductility, 1J85 Strip supports complex component geometries.

• Thermal resilience up to 400 °C in 1J85 Strip for demanding operational environments.

• Conforms to GB/T15018‑1994, GBn198‑1988, and GB/T14986‑2008 for reliable standard compliance.

Frequently Asked Questions (FAQ)

Q1: What is the chemical composition range of the 1J85 Strip?
A: It comprises 79–81 % nickel, 4.8–5.2 % molybdenum, 0.30–0.60 % manganese, 0.15–0.30 % silicon, with trace C, P, S not exceeding 0.03 %, 0.02 %, 0.02 % respectively; balance iron.

Q2: What mechanical properties does the 1J85 Strip exhibit?
A: In the annealed state, it offers tensile strength ≥ 560 MPa, elongation ≥ 35 %, and Vickers hardness ≤ 205 Hv, combining strength with formability.

Q3: What are the physical parameters of the 1J85 Strip?
A: Density is 8.75 g/cm³; melting point ranges from 1,395 °C to 1,425 °C; resistivity is 0.56 μΩ·m; Curie point sits at 400 °C.

Q4: Which execution standards govern the production of the 1J85 Strip?
A: It’s produced to GB/T15018‑1994, GBn198‑1988, and GB/T14986‑2008 specifications, ensuring tight dimensional and compositional control.

Q5: In which industries is the 1J85 Strip most commonly used?
A: It’s widely adopted in electrical transformers, choke coils, pulse transformers, magnetic amplifiers, high‑sensitivity relays, and shielding applications across automotive, telecommunications, and industrial sectors.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.