Product Description
In the world of electromagnetic interference (EMI) suppression, Fe-Si-Al Sendust powder has emerged as a groundbreaking solution. This innovative material, composed of iron, silicon, and aluminum, offers exceptional magnetic shielding capabilities, making it an ideal choice for various applications.
Fe-Si-Al Sendust powder, often referred to simply as Sendust, is a type of soft magnetic material. Its composition typically includes 85% iron, 9% silicon, and 6% aluminum, making it highly effective in absorbing stray electromagnetic fields.
- High Permeability: Sendust powder boasts high permeability, allowing it to effectively absorb and suppress electromagnetic waves.
- Low Core Loss: One of the standout features of Sendust is its low core loss, which ensures efficient energy transfer and minimizes power wastage.
- Temperature Stability: With excellent temperature stability, Sendust powder maintains its performance across a wide range of temperatures.
- Corrosion Resistance: The inclusion of aluminum in its composition enhances Sendust's resistance to corrosion, making it durable in various environments.
Fe-Si-Al Sendust powder finds application in numerous industries, primarily due to its magnetic properties and ability to suppress EMI. Here are some of the key applications:
Sendust powder is extensively used in the manufacture of high-performance inductors and transformers. Its ability to absorb stray magnetic fields makes it ideal for reducing electromagnetic interference in these components, ensuring optimal performance.
Sendust cores, also known as Kool Mμ cores, are popular for their low core losses and high saturation flux density. They are used in pulse transformers, flyback transformers, and switching regulator inductors, where efficient EMI suppression is crucial.
In electronic devices, Sendust powder is used to create EMI shielding layers that protect sensitive components from electromagnetic interference. This is particularly important in devices that operate at high frequencies, where EMI can significantly impact performance.
Audiophiles utilize Sendust sheets and tapes to enhance the performance of audio equipment. By absorbing stray EMI, Sendust helps maintain the integrity of audio signals, resulting in clearer and more accurate sound reproduction.
| Property | Iron-Based Alloy Powders | Stainless Steel (316L) | Nickel Alloys (Inconel 625) | Titanium (Ti-6Al-4V) |
| Density (g/cm³) | 7.4–7.9 (varies by alloy) | 7.9 | 8.4 | 4.4 |
| Hardness (HRC) | 20–65 (depends on heat treatment) | 25–35 | 20–40 (annealed) | 36–40 |
| Tensile Strength (MPa) | 300–1,500+ | 500–700 | 900–1,200 | 900–1,100 |
| Corrosion Resistance | Moderate (improves with Cr/Ni) | Excellent | Excellent | Excellent |
| Max Operating Temp. (°C) | 500–1,200 (alloy-dependent) | 800 | 1,000+ | 600 |
| Cost (vs. Pure Fe = 1x) | 1x–5x (alloy-dependent) | 3x–5x | 10x–20x | 20x–30x |
Injection molding of powder injection molding technology
Compared with traditional process, with high precision, homogeneity, good performance, low production cost, etc. In recent years, with the rapid development of MIM technology, its products have been widely used in consumer electronics, communications and information engineering, biological medical equipment, automobiles, watch industry, weapons and aerospace and other industrial fields.
| Grade | Chemical Nominal Composition(wt%) |
| Alloy | C | Si | Cr | Ni | Mn | Mo | Cu | W | V | Fe |
| 316L | | | 16.0-18.0 | 10.0-14.0 | | 2.0-3.0 | - | - | - | Bal. |
| 304L | | | 18.0-20.0 | 8.0-12.0 | | - | - | - | - | Bal. |
| 310S | | | 24.0-26.0 | 19.0-22.0 | | - | - | - | - | Bal. |
| 17-4PH | | | 15.0-17.5 | 3.0~5.0 | | - | 3.00-5.00 | - | - | Bal. |
| 15-5PH | | | 14.0-15.5 | 3.5~5.5 | | - | 2.5~4.5 | - | - | Bal. |
| 4340 | 0.38-0.43 | 0.15-0.35 | 0.7-0.9 | 1.65-2.00 | 0.6-0.8 | 0.2-0.3 | - | - | - | Bal. |
| S136 | 0.20-0.45 | 0.8-1.0 | 12.0-14.0 | - | | - | - | - | 0.15-0.40 | Bal. |
| D2 | 1.40-1.60 | | 11.0-13.0 | - | | 0.8-1.2 | - | - | 0.2-0.5 | Bal. |
| H11 | 0.32-0.45 | 0.6-1 | 4.7-5.2 | - | 0.2-0.5 | 0.8-1.2 | - | - | 0.2-0.6 | Bal. |
| H13 | 0.32-0.45 | 0.8-1.2 | 4.75-5.5 | - | 0.2-0.5 | 1.1-1.5 | - | - | 0.8-1.2 | Bal. |
| M2 | 0.78-0.88 | 0.2-0.45 | 3.75-4.5 | - | 0.15-0.4 | 4.5-5.5 | - | 5.5-6.75 | 1.75-2.2 | Bal. |
| M4 | 1.25-1.40 | 0.2-0.45 | 3.75-4.5 | - | 0.15-0.4 | 4.5-5.5 | - | 5.25-6.5 | 3.75-4.5 | Bal. |
| T15 | 1.4-1.6 | 0.15-0.4 | 3.75-5.0 | - | 0.15-0.4 | - | - | 11.75-13 | 4.5-5.25 | Bal. |
| 30CrMnSiA | 0.28-0.34 | 0.9-1.2 | 0.8-1.1 | - | 0.8-1.1 | - | - | - | - | Bal. |
| SAE-1524 | 0.18-0.25 | - | - | - | 1.30-1.65 | - | - | - | - | Bal. |
| 4605 | 0.4-0.6 | | - | 1.5-2.5 | - | 0.2-0.5 | - | - | - | Bal. |
| 8620 | 0.18-0.23 | 0.15-0.35 | 0.4-0.6 | 0.4-0.7 | 0.7-0.9 | 0.15-0.25 | - | - | - | Bal. |
Powder specification:
| Particle Size | Tapping Density | Particle Size Distribution(μm) |
| | (g/cm³) | D10 | D50 | D90 |
| D50:12um | ＞4.8 | 3.6- 5.0 | 11.5-13.5 | 22-26 |
| D50:11um | ＞4.8 | 3.0- 4.5 | 10.5-11.5 | 19-23 |
Factory equipment
Exhibition & Partner
Case
Ship to Poland
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FAQ
1. What types of stainless steel powders are used in 3D printing?
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Common grades include 316L (excellent corrosion resistance), 17-4 PH (high strength and hardness), 304L (general-purpose use), and 420 (wear resistance). Each grade has specific properties suited for different applications.
2. What is the typical particle size for stainless steel powders in 3D printing?
3. Can stainless steel powders be reused?
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Yes, unused powder can often be recycled by sieving and blending with fresh powder. However, excessive reuse can degrade powder quality, so regular testing is recommended.
4. What safety precautions should be taken when handling stainless steel powders?
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Avoid inhalation or skin contact by using gloves, masks, and protective clothing.
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Store powders in a dry, airtight container to prevent moisture absorption.
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Handle powders in a well-ventilated area or under inert gas to minimize explosion risks.
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Fe-Si-Al Sendust Reduced Iron Metal Powder Magnetic Shielding EMI Suppression Images
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