High Purity Atomized Iron Powder: Low-Oxygen, Superior Sinterability
In the world of advanced materials, high purity atomized iron powder stands out as a key component due to its low oxygen content and superior sinterability. This material is essential for producing high-density sintered parts and is widely used across various industries, including powder metallurgy, welding, and friction applications.
Understanding High Purity Atomized Iron Powder
What is Atomized Iron Powder?
Atomized iron powder is produced by disintegrating molten iron using high-energy water jets, resulting in irregularly shaped particles with excellent green strength. This process ensures high purity and compressibility, making it ideal for applications requiring high-density and high-strength parts.
Key Properties
- Low Oxygen Content: Minimizes oxidation during sintering for better structural integrity and performance.
- Superior Sinterability: Enables compaction into high-density parts with consistent dimensional change.
- High Purity: Exceeds 99% iron purity for critical applications in electronics and power industries.
Applications of High Purity Atomized Iron Powder
Powder Metallurgy
Used to create complex shapes and high-strength parts with consistent dimensional properties.
Welding and Friction Applications
Enhances weld quality by reducing oxidation and improves performance in clutch/brake pads.
Diamond Tools
Improves matrix densification and alloying degree for lower sintering temperatures and increased tool sharpness.
Magnetic Materials
Enhances magnetic properties in cores, inductors, and transformers due to small particle size and large surface area.
Benefits of Using High Purity Atomized Iron Powder
- Enhanced mechanical properties including tensile strength and impact resistance
- Cost-effective production processes with high yields
- Versatile applications across multiple industries
Material Properties Comparison
| 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 |
Powder Injection Molding Technology
Compared with traditional processes, powder injection molding offers high precision, excellent homogeneity, superior performance, and lower production costs. This technology has rapidly developed and is now widely used in consumer electronics, communications, medical equipment, automotive, watchmaking, and aerospace industries.
Chemical Composition by Grade (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. |
Powder Specifications
| Particle Size |
Tapping Density (g/cm³) |
D10 (μm) |
D50 (μm) |
D90 (μm) |
| 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 & Partners
Case Studies
Shipment to Poland
Shipment to Germany
Frequently Asked Questions
What types of stainless steel powders are used in 3D printing?
- 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.
What is the typical particle size for stainless steel powders in 3D printing?
- The particle size typically ranges from 15 to 45 micrometers (µm). Spherical particles are preferred for better flowability and packing density.
Can stainless steel powders be reused?
- 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.
What safety precautions should be taken when handling stainless steel powders?
- Avoid inhalation or skin contact by using gloves, masks, and protective clothing.
- Store powders in a dry, airtight container to prevent moisture absorption.
- Handle powders in a well-ventilated area or under inert gas to minimize explosion risks.
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