For 20 years, we have been dedicated to the research of carbonyl iron powder with a focus on microwave absorption and electromagnetic compatibility requirements. The result is the development of carbonyl iron powder with typical nanocrystalline characteristics, characterized by fine and uniform particle size, excellent flowability, high purity, and easy compatibility with adhesives. The absorption materials and electromagnetic compatibility devices made from this powder exhibit excellent processability, mechanical and thermal stability, reliability, outstanding absorption performance, and wide operating bandwidth. These products find extensive applications in military, radar, microwave communication, satellite ground stations, microwave instrument equipment, electromagnetic shielding (EMI) devices, and everyday microwave pollution absorption materials.
In recent years, we have further advanced its technology in the field of microwave absorption, developing high magnetic flux micro-nano sheet iron-based materials, as well as FeC composite materials.
1. Electromagnetic Wave Absorption Materials
It can be added to various materials to enhance their ability to absorb electromagnetic waves, making it useful in industries such as telecommunications and electronics.
2. Electromagnetic Interference (EMI) Shielding
Flake carbonyl iron powder is often used as a filler material in EMI shielding coatings and composites due to its high electrical conductivity and ability to absorb electromagnetic radiation.
3. Radar Absorbing Materials (RAM)
It is used in the production of RAM coatings for military and aerospace applications to reduce radar reflections and enhance stealth capabilities.
4. Magnetic Inks and Toner
Flake carbonyl iron powder is used in the formulation of magnetic inks and toners for printing applications, such as barcodes and magnetic stripes on cards.
5. High-Frequency Absorption
Due to its unique structure, it is utilized in microwave and high-frequency absorbing materials, particularly in the gigahertz frequency range.
6. Magnetic Resonance Imaging (MRI) Contrast Agents
In the medical field, it can be employed as a contrast agent in MRI applications to enhance image quality and visibility of specific tissues.
7. Catalysts
It can serve as a catalyst or catalyst support in various chemical reactions and processes.
8. Automotive and Industrial Coatings
Flake carbonyl iron powder is used in coatings for automotive and industrial applications to provide corrosion resistance and enhance durability.
9. Conductive Adhesives
It is used in conductive adhesives for bonding electronic components and providing electrical conductivity.
Carbonyl Iron Powder Grades for Microwave Absorption and Electromagnetic Shielding
|
Grades |
Particle Size Distribution(μm) |
Bulk Density |
Tap Density |
Elemental Composition |
|
D10 |
D50 |
D90 |
g/cm3 |
g/cm3 |
C |
O |
N |
Fe |
|
YW1 |
<5.5 |
<8.0 |
<16 |
≥2.4 |
≥4.0 |
<0.75 |
<0.50 |
<0.75 |
Residue |
|
YW2 |
<4.0 |
<6.5 |
<12 |
≥2.0 |
≥4.0 |
<0.78 |
<0.55 |
<0.75 |
Residue |
|
YW3 |
<2.5 |
<5.0 |
<10 |
≥1.8 |
≥3.8 |
<0.80 |
<0.60 |
<0.75 |
Residue |
|
YW4 |
<1.8 |
<3.5 |
<8.0 |
≥1.6 |
≥3.6 |
<0.80 |
<0.60 |
<0.75 |
Residue |
|
YW5 |
<1.5 |
<2.0 |
<6.0 |
≥1.5 |
≥3.4 |
<0.85 |
<0.65 |
<0.75 |
Residue |
|
YP |
Unreduced Flake Powder |
|
RW |
<4.0 |
<6.5 |
<8.0 |
≥2.2 |
≥3.8 |
<0.05 |
<0.40 |
<0.05 |
Residue |
|
RP |
Reduced Flake Powder |
|
Insulation and SiO2 coating can be applied to the above-mentioned grades of products according to customer requirements for material compositing. |
Grade Explanation:
Y: Unreduced carbonyl iron powder with a layered structure, suitable for manufacturing microwave absorption materials in higher frequency ranges.
R: Reduced carbonyl iron powder, reduction eliminates the layered structure within particles, higher purity, suitable for manufacturing microwave absorption materials in relatively lower frequencies.
W: Indicates use for microwave absorption materials.
P: Flake.
Suffix Numbers 1 to 5: Indicates particle sizes from large to small
Beijing Entrepreneur Science & Trading Co., Ltd. was established in the year 2001. We are focused on import and export business of high-quality specialty chemicals. Since its establishment, relying on diligent efforts, spirit of enterprising and professional services, the company has established extensive cooperation with world-famous chemical manufacturers and gained a good reputation in China chemical industry.
We have stable distribution cooperation with world leading suppliers from America, Europe, Japan and Taiwan. We are distributors of Ames Advantage Material, Novamet, Lanxess, Momentive, Potters, Rhodia, Roquette, Oerlikon Metco, Inovyn, KJ Chemical, Tokuyama, Mitsubishi Chemical, Chang Chun Group, etc.
Our products selling in China include Conductive Powder, Thermal Conductive Powder, Microwave Absorbing Powder, Acrylamide Functional Monomer and Special UV Monomer, Special Epoxy Resin, Mercaptan Curing Agent, Silane, Fumed Silica and Precipitated Silica, PVC Paste Resin, PVA, Carbon Black, Modified Starch, Photocatalyst, Formaldehyde Capture agent, Root Blocking Agent, Platinum Catalyst, Vinyl Silicone Oil, Surfactant, etc.
In 2014, the company entered the chemical export business. Based on our understanding of China chemical market, we select most qualified suppliers. We are able to source raw materials directly from factories. Most of our partners are the largest factory in China with over 20 years history. They have huge annual outputs, and hold ISO9001, ISO14001, GMP, KOSHER, HALAL, FDA, GSP, etc. certificates.
Our export products include Conductive Powder, Thermal Conductive Powder, Plant Extract, Inorganic Powder, Plasticizer, PVC Paste Resin, Silane, Flavors and Fragrances, Salen Catalysts and Ligands, Organic Intermediates, Pharmaceutical Intermediates.
We are proud to serve industries such as coating, ink, sealant, industrial, cosmetics, conductive powder, thermal conductive powder, pharmaceutical, flavor & fragrance, aroma, as well as many others.
We will support our customers in a continuous way in the following:
1. Timely feedback to inquiry within 24 hours
2. Pre-sales consultancy
3. Supply samples
4. Competitive price
5. Good packaging
6. Timely delivery
7. Small order is available
8. Good after sales services
9. Provide TDS, COA, commercial invoice, packing list and certificate of origin. Special requirements also could be discussed and met.
Can I request samples?
Yes, absolutely! We offer free samples of specified quantities. You only need to cover the freight charges.
Which documents are provided?
We provide essential documents such as Certificate of Analysis (COA), Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and more upon request.
What is your Minimum Order Quantity (MOQ)?
Typically, our MOQ is one standard package. However, we understand the importance of testing before committing to a mass order, so we offer free samples for your evaluation.
How do you ensure the quality of your products?
We prioritize quality assurance through several measures:
1. Expert Staff: Our team comprises professionals with extensive experience in chemical products or related fields. They undergo comprehensive training before providing any quotations.
2. Sample Availability: We offer free samples or pre-shipment samples for new collaborations, ensuring that our commercial products match the specifications provided to customers.
3. Third-Party Inspection: Upon request, we can arrange Third-Party Inspections, such as SGS, to further validate the quality of our products before shipping.
How do I make payments?
Once you receive the Proforma Invoice (PI) along with our product specifications, you can proceed with payment. We accept various payment methods including Telegraphic Transfer (T/T), Letter of Credit (LC), and more.
What is your after-sales service like?
At Beijing Entrepreneur Science & Trading Co., Ltd., we prioritize fostering long-term relationships with all our customers. For every order, we ensure transparency and commitment by signing a legally binding sales contract. Should you have any doubts or concerns regarding our products or services, please do not hesitate to contact us. Your satisfaction and trust are our top priorities.
Can I use my own label or packaging?
Absolutely. If required, we can use labels or packaging according to your specifications and preferences. Your branding and packaging needs are important to us, and we'll ensure they are met to your satisfaction.
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}