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Preparation Methods and Application Fields of Stainless Steel Powder

Update time : 2023-10-18 10:31:10

Stainless steel powder is an important metal material with good physical and chemical properties, mainly used in industry and daily life. The following will provide a detailed introduction to the basic knowledge, properties, preparation methods, application fields, and future development of stainless steel powder.

Composition of stainless steel powder:

Model

Chemical Composition(%)

Tap density
(g/cm3)

Flow
(s/50g)

compressibility
(g/cm3)

304L

18-20

11-12

>6.55

0.8

<0.03

<0.02

<0.3

remaining

3.9-4.2

≤30

≥6.55

316L

17-18

13-14

2-3

>6.60

0.8

<0.03

<0.02

<0.3

remaining

3.9-4.2

≤30

≥6.60

317L

19-20

14-15

3-4

>6.70

0.8

<0.03

<0.02

<0.3

remaining

3.9-4.2

≤30

≥6.70

410L

12-13

>6.70

0.8

<0.03

<0.02

<0.3

remaining

3.8-4.0

≤30

≥6.70

9Cr18

17-19

>6.45

0.8

0.9-1.0

<0.035

<0.02

<0.3

remaining

3.3-3.9

≤30

≥6.45

9Cr1.5

1.3-1.7

>6.40

0.8

0.95-1.05

<0.03

<0.02

<0.3

remaining

3.3-3.9

≤30

≥6.40

1. Basic knowledge of stainless steel powder
Stainless steel powder is a metal powder with excellent corrosion resistance, high-temperature resistance, and high strength. There are two main ways for manufacturing stainless steel powder: atomization and reduction. The atomization method involves spraying molten stainless steel onto a high-speed rotating cooling wheel to quickly solidify the stainless steel and produce powder. The reduction method is to mix stainless steel oxide with a reducing agent and undergo a reduction reaction at high temperatures to produce powder.

2. Properties of Stainless Steel Powder
physical property
Stainless steel powder has the general physical properties of metal powder, including good conductivity and thermal conductivity, as well as high density, high surface hardness, and high wear resistance. In addition, stainless steel powder also has good processability and weldability.
chemical property
The chemical properties of stainless steel powder are also very stable, with good corrosion resistance and high-temperature resistance. At room temperature, stainless steel powder can resist most acids and alkalis and can resist oxidation, sulfurization, and nitridation at high temperatures.

3. Preparation method of stainless steel powder
Atomization method
The atomization method is one of the main ways for manufacturing stainless steel powder. This method involves spraying molten stainless steel through a nozzle onto a high-speed rotating cooling wheel, allowing the stainless steel to quickly solidify into powder. During the preparation process, it is necessary to control the composition of the molten stainless steel and the distance between the nozzle and the cooling wheel to ensure that the particle size and chemical composition of the stainless steel powder meet the requirements.
reduction method

The reduction method is also an important method for manufacturing stainless steel powder. This method involves mixing stainless steel oxide with a reducing agent and conducting a reduction reaction at high temperatures to produce a powder. Commonly used reducing agents include hydrogen gas, carbon monoxide, and methane. During the preparation process, it is necessary to control the reaction temperature and atmosphere to avoid the generation of impurities and harmful gases.

4. Application Fields of Stainless Steel Powder
Manufacturing stainless steel parts
Stainless steel powder is mainly used in the manufacturing of stainless steel parts. By utilizing powder metallurgy technology, stainless steel powder can be made into high-strength, high-precision, and corrosion-resistant stainless steel parts, which are widely used in fields such as automobiles, aerospace, and petrochemicals.

Manufacturing medical devices
Due to its good corrosion resistance and biocompatibility, stainless steel powder is mainly used in the manufacturing of medical devices, such as surgical instrument, implants, and prostheses. Stainless steel medical devices can maintain good hardness and wear resistance during use while not causing adverse reactions to the patient's body.

Manufacturing decorative materials
Due to the excellent metallic luster and texture of stainless steel powder, it can be made into various decorative materials, such as stainless steel plates, stainless steel foils, and stainless steel fibers. These decorative materials are widely used in fields such as architecture, furniture, and automobiles, which can increase the aesthetics and texture of products.
Manufacturing sensor and electrode materials
Stainless steel powder can also be made into sensor and electrode materials, such as electrochemical sensors and fuel cell electrodes. These sensors and electrode materials can detect and analyze substances such as gases, liquids, and ions and are widely used in environmental monitoring, chemical analysis, and biomedical fields.

5. Future Development of Stainless Steel Powder
With the continuous progress and innovation of technology, the application prospects of stainless steel powder are still very broad. In the future, the development direction of stainless steel powder mainly includes the following aspects:

Development of high-performance stainless steel powder
With the continuous improvement of material performance requirements in various fields, the research and development of high-performance stainless steel powder has become one of the important development directions. For example, developing stainless steel powders with high strength, wear resistance, and corrosion resistance can meet more demanding application environments and requirements.

Research on Fine Preparation Technology of Stainless Steel Powder
In order to meet the preparation requirements of various complex shapes, specifications, and performance of stainless steel parts, it is necessary to study more refined stainless steel powder preparation techniques. For example, using advanced atomization and reduction technologies, stainless steel powder with smaller particle sizes and more uniform composition can be prepared while reducing production costs and improving preparation efficiency.

Application and Expansion of Stainless Steel Powder in the Field of New Energy and Environmental Protection
With the rapid development of new energy and environmental protection, the demand for high-performance and environmentally friendly materials is also increasing. Stainless steel powder, as a high-performance and recyclable material, has broad application prospects in the sides of new energy and environmental protection. For example, making stainless steel powder into new energy devices such as battery electrode materials, fuel cell electrode materials, and solar panels can fully utilize their excellent conductivity and corrosion resistance. Meanwhile, studying environmentally friendly preparation and recycling technologies for stainless steel powder can reduce its impact on the environment and improve the sustainable utilization efficiency of resources.

High-quality Stainless Steel Powder
TRUNNANO is a trusted global chemical materials supplier and manufacturer with over 12 years of experience in ultra-high quality nanomaterials and chemicals. The company develops a variety of powder materials and chemicals. Provide OEM services. If you are looking for Stainless Steel Powder, please contact us.

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