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A new material enterprise focusing on new product development, large-scale production, metal powders sales and application terminal support of gas atomization powder manufacturing process technology.
Soft magnetic powder
Soft magnetic alloy powder
Prepared using a core process of medium-frequency induction melting combined with gas atomization, these powders exhibit high sphericity and stable magnetic properties, making them ideally suited for MIM and PM processes and meeting the stringent precision requirements of electronics, magnetic components, and other applications.
Tianjiu Metal’s soft magnetic alloy powders are spherical in shape, produced using the core gas atomization technology developed by the Powder Metallurgy Research Institute of Central South University. The powders undergo stringent control over critical parameters such as particle size distribution, oxygen content, and magnetic properties, resulting in excellent flowability and outstanding formability.
Core adaptation process: Metal Injection Molding (MIM), Powder Metallurgy (PM) We can customize the composition and particle-size specifications according to customers’ product requirements and provide test reports for every batch, ensuring product consistency.
Core Grades and Chemical Composition
| Powder grade | Main Chemical Components (wt%) | Core Features |
|---|---|---|
| FeSi6.5 | Si: 6.2–6.8, C ≤ 0.03, S ≤ 0.01, Fe: remainder | High permeability, low core loss, and excellent high-frequency performance. |
| FeSi6.5Cr4.5 | Si: 6.0–7.0, Cr: 4.0–5.0, C ≤ 0.03, Fe: remainder | Excellent corrosion resistance and low loss, suitable for complex operating conditions. |
| FeSi5Cr5.5 | Si: 4.7–5.3, Cr: 5.2–5.8, C ≤ 0.01, Fe: remainder | High toughness, stable magnetic properties, and excellent formability. |
| FeSi3.7Cr4.5 | Si: 3.4–4.0, Cr: 4.2–4.8, C ≤ 0.03, Fe: remainder | High cost-performance and easy to form, compatible with standard magnetic components. |
| FeSiAl | Si: 8.8–9.8, Al: 5.0–6.0, C ≤ 0.01, Fe: remainder | Ultra-high permeability, extremely low coercivity |
| FeNi50 | Ni: 49.0–51.0, C ≤ 0.03, S ≤ 0.01, Fe: remainder | Low thermal expansion and high magnetic permeability, ideal for precision magnetic components. |
Powder Core Specification Parameters
| Common Particle Size Specifications (μm) | Particle Size Distribution (D10/D50/D90) (μm) | Oxygen content (wt%) | Sphericity | Loose bulk density (g/cm³) |
|---|---|---|---|---|
| 0-25 | 4.0–6.0 / 12–14 / 21–25 | ≤0.08 | >90% | ≥2.4 |
| 0-38 | 4.0–6.5 / 14.5–17.5 / 28–36 | ≤0.08 | >90% | ≥2.8 |
| 0-45 | 5.5–7.5 / 18–22 / 38–44 | ≤0.07 | >90% | ≥3.2 |
| Custom specifications | Adjust according to the customer’s MIM/PM process requirements. | Customizable ≤0.03 | >90% | Customized on demand |
Note: All specifications are for atomized spherical powders, fully compatible with MIM/PM processes. Minimum order quantity is 1 kg for sample production, with complimentary process parameter recommendations.
Main Application Areas
Electronic precision components
Inductor cores, sensor magnetic components, and miniature transformers
Automotive Electronics
Automotive inductors, motor magnetic cores, and automotive sensors
Consumer Electronics
Wireless charging magnetic cores, Bluetooth earphone magnetic components
Industrial magnetic components
Electromagnetic relays, electromagnetic clutches, encoders
New energy
Charging pile magnetic components, photovoltaic inverter magnetic cores
Precision Hardware
Micro magnetic structural components, precision electromagnetic components
Core Product Advantages
Advanced technology
Medium-frequency induction melting combined with inert-gas atomization yields powder with a sphericity greater than 90% and excellent flowability, thereby reducing forming defects in MIM and PM processes.
Controllable metrics
Narrow particle size distribution, oxygen content ≤0.08 wt% (customizable to ≤0.03), and high batch-to-batch consistency in magnetic properties.
Highly adaptable
Excellent tapped and loose-powder densities, perfectly suited for MIM/PM processes, resulting in high green density and crack-free compacts.
Strict quality control
Full-process testing (including laser particle size analyzers and magnetic property testers, among others), with a detailed test report provided for each batch.
Customized services
Supports customized composition and particle size; sample trials are available, and proprietary technical guidance for MIM/PM processes is provided.
Stable production capacity
Three aerosol production lines with a monthly supply capacity of 300 tons; standard models delivered within 2–5 days, ensuring stable supply.
Get Custom Solutions for Soft Magnetic Alloy Powders Now
Consultation phone: +86 181 6373 1172
Corporate email: sales01@hntijo.com
Company Address: Room 301, Building 39, Liandong U Industrial Park, Yuelu District, Changsha City
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Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
