About Us
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 · Specifically for MIM/PM processes
FeSi / FeSiAl / FeNi series Sphericity > 90% · Monthly supply of 300 tons
Regarding Tianjiu Soft Magnetic Alloy Powder
Tianjiu’s soft magnetic metal alloy powder is spherical in shape and is produced via medium-frequency induction melting combined with inert-gas atomization. Key parameters such as particle size distribution, oxygen content, and magnetic properties are rigorously controlled. The powder exhibits excellent sphericity, superior flowability, and outstanding formability, and its magnetic characteristics can be tailored by adjusting the alloy composition. It is an ideal raw material for the manufacture of electronic and magnetic components.
Core adaptation process: Metal Injection Molding (MIM), Powder Metallurgy (PM) We can customize the composition and particle size specifications to meet your product requirements, with a minimum order of 1 kg for sample production and complimentary process‑parameter recommendations. Full batch‑level test reports are provided to ensure product consistency. Our core technical team is composed of graduates from the Powder Metallurgy Research Institute at Central South University, bringing a strong foundation in powder‑making technology.
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 magnetic permeability, low iron 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, easy to mold, and 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, suitable 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 packing 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% | Custom-made on demand |
* All specifications are for gas‑atomized spherical powders, fully compatible with MIM/PM processes. Samples are available starting from 1 kg, with complimentary process parameter recommendations. Customization of composition and particle size is supported.
Why choose Tianjiu soft magnetic alloy powder?
Advanced technology
Medium-frequency induction melting combined with inert-gas atomization yields powders with a sphericity exceeding 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 excellent batch-to-batch consistency in magnetic properties.
Highly adaptable
Excellent powder bulk and tapped densities, perfectly suited for MIM/PM processes, yielding high densification and crack‑free green parts.
Stable production capacity
Three atomization production lines, with a monthly supply capacity of 300 tons; standard models are delivered within 2–5 days, ensuring stable supply.
Main application areas
Electronic precision components
Inductor magnetic cores, sensor magnetic components, miniature transformers
Automotive electronics
Automotive inductors, motor magnetic cores, automotive sensors
Consumer electronics
Wireless charging magnetic cores, Bluetooth earphone magnetic components
Industrial magnetic components
Electromagnetic relay, electromagnetic clutch, encoder
New energy
Magnetic components for charging piles, magnetic cores for photovoltaic inverters
Precision hardware
Micro magnetic components, precision electromagnetic components
Core Product Advantages
Advanced technology
Medium-frequency induction melting combined with inert-gas atomization yields powders with a sphericity exceeding 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 excellent batch-to-batch consistency in magnetic properties.
Highly adaptable
The powder exhibits excellent bulk and tapped densities, making it ideally suited for MIM/PM processes; after forming, it achieves high density with no cracking.
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; samples are available, and we provide proprietary technical guidance for MIM/PM processes.
Stable production capacity
Three atomization production lines, with a monthly supply capacity of 300 tons; standard models are delivered within 2–5 days, ensuring stable and reliable supply.
End-to-end testing capability
Each batch of powder undergoes comprehensive inspection for composition, particle size, oxygen content, flowability, and magnetic properties, with a full‑batch traceable test report provided to ensure batch-to-batch consistency and process stability in MIM/PM manufacturing.
Get your custom soft magnetic alloy powder solution now.
Contact our engineers to request samples and obtain recommendations on MIM/PM process parameters.
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Contact Us
Address: No.39, Liandong Yougu lnd. Park, Bachelor Street,Changsha City,Hunan Province, China.
