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Porosity (%)
Thickness (um)*
Basis Weight (g)
Actual weight (g)**
LINQCELL TFP250
50 - 60
250
45.5
18.3 - 22.6
LINQCELL TFP250S
60 - 70
250
45.5
13.7 - 18.1
LINQCELL TFP400
50 - 60
400
72.8
29 - 36.3
LINQCELL TFP400S
60 - 70
400
72.8
22 - 29
LINQCELL TFP500
50-60
500
-
-
LINQCELL TFP600
50 - 60
600
109.3
44 - 54.5
LINQCELL TFP600S
60 - 70
600
109.3
32.8 - 43.6
LINQCELL TFP800
50 - 60
800
145.7
58.3 - 72.9
LINQCELL TFP800S
60 - 70
800
145.7
43.7 - 58.2
LINQCELL TFP
50 - 60
1,200
-
-
LINQCELL TPP250
30 - 40
250
-
-
LINQCELL TPP500
30 - 40
500
-
-
LINQCELL TPP
30 - 40
-
-
All the standard sheet sizes are 20 x 20cm
*Thickness tolerance is ±150um for all grades.
**The actual weight of the sheet will depend on the final porosity. This is the expected range.
Item
Are you interested in learning more about Stainless steel sintered felt? Contact us today to secure an expert consultation!
Porosity (%)
Thickness (um)*
Basis Weight (g)
Actual weight (g)**
LINQCELL GFP
-
-
-
LINQCELL GFP
-
-
-
LINQCELL GFP
-
590
-
Porous metal materials, characterized by their porous structures, are innovative engineering materials that offer impressive strength while being light. These materials are used across different industries, including aerospace, metallurgy, mechanics, petrochemicals, energy, pharmaceuticals, architecture, and transportation. Their unique properties make them suitable for specialized applications, such as in life support systems, energy storage, hydrogen generation, and filtration systems.
Porous metal materials can be categorized into three types:
Unlike metal foams, which are typically created through a foaming process that introduces gas into metallic melts, sintered metal powders and fiber felts are formed by sintering compacted powders or laminated fibers, respectively.
Reference: Samal, Prasan K. Newkirk, Joseph W.. (). ASM Handbook, Volume 07 - Powder Metallurgy () - 34.2 Improved Mechanical Properties.(pp. 332). ASM International.
The different sintering stages show how loose metal powders transform into a solid object:
In the final stage of sintering, interconnected open pores close and turn into isolated closed pores. As this happens, grain growth occurs, which slows down the surface and bulk diffusion processes. Consequently, this stage becomes the slowest, as densification increases from 95% to 99%.
(SD: Surface Diffusion, VD: Vacancy Diffusion, GB: Grain Boundary Diffusion)
Throughout the sintering process of fiber felts, several transformations occur, such as the development of necks between fibers, the enlargement of grains within fibers, and changes in porosity. Similar to powder sintering, sintering of fiber metal felts involves six modes of material transport. Three of these modes lead to sintering without densification: vapor transport, surface diffusion, and lattice diffusion from the surface. Conversely, the other three modes lead to densification: boundary diffusion, lattice diffusion from the grain boundary, and lattice diffusion from dislocation.
To predict the sintering conditions necessary to achieve desired properties, sintering diagrams have been developed for different powders and wires. Originally, these diagrams were based on simple models, like the two-sphere model, which worked well for powders and wires. However, fiber felts, with their complex geometry, require a different approach.
Unlike in powders, where sintering occurs between particles bonded by van der Waals forces, sintering in fiber felts takes place in the joints between adjacent fibers at random angles. During the pressing or shaping of fibers, sintering joints primarily develop at points where fibers make contact. Under pressure, fibers interlock, forming many contact areas. These contact regions can be categorized as either fiber-to-fiber contact joints or fiber-to-fiber mechanical meshing.
During sintering, material migrates in fiber-to-fiber contact joints or mechanical meshing to reduce surface energy. Initially, sintering begins on microstructures' surfaces, forming contact points between fibers, which then strengthen. This process continues across the fiber network, forming a mesh-like structure. In comparison to sintering powders, sintering metal fiber felts undergo less densification. This is because surface processes, grain growth, and neck growth mechanisms dominate over densification processes like grain boundary diffusion.
Contact Regions in Sintered Fiber Felts: Fiber-to-fiber (a) contact joints and (b) mechanical meshing
(Image Source: Tang, Y. et al. () ‘An Innovative Fabrication Process of Porous Metal Fiber Sintered Felts with Three-Dimensional Reticulated Structure’, Materials and Manufacturing Processes, 25(7), pp. 565–571.)
Compared to sintered metal powder, sintered metal fiber felts are less dense, resulting in higher porosity and permeability. Sintered metal powders typically have porosities lower than 50%, whereas sintered metal fibers can achieve porosities higher than 50%. For instance, sintered titanium fiber felts can have porosities as high as 98%, with pore sizes smaller than 10 µm. Additionally, sintered metal fiber felts exhibit a three-dimensional reticulated structure. This structure not only provides well-defined conductive paths but also offers controlled electrical conductivity-temperature characteristics. The high porosity and decreased electrical resistivity due to the rupture of joint fiber contacts after sintering make sintered metal Fiber Felt an excellent material for applications such as water electrolyzers and fuel cells.
Scanning Electron Microscopy Images of Sintered Titanium (Left) Powder and (Right) Fiber Felt
(Image Source: Omrani, Reza & Shabani, Bahman. (). Gas Diffusion Layers in Fuel Cells and Electrolysers: A Novel Semi-Empirical Model to Predict Electrical Conductivity of Sintered Metal Fibres. Energies. 12. 855.)
Titanium fiber papers represent a specialized category of materials known for their unique properties and applications in various industries. These papers are composed of titanium fibers intricately woven together to form a porous and conductive structure. With their exceptional characteristics, titanium fiber papers find utility in diverse fields, ranging from electrochemical systems to filtration and aerospace applications.
Titanium fiber papers serve as versatile components in electrochemical systems, such as proton exchange membrane (PEM) electrolyzers and solid oxide electrolyzers. They function as critical elements in these devices, playing roles as gas diffusion layers, current collectors, and support structures. Their high electrical conductivity and corrosion resistance ensure efficient electron and ion transport, while the porous structure allows for effective gas diffusion, aiding in reactant distribution and facilitating electrolyte permeation.
Beyond electrochemical applications, titanium fiber papers find use in filtration processes, where their porous nature enables effective separation of particles and contaminants from fluids. They are often employed as filter media in industries such as pharmaceuticals, wastewater treatment, and air purification. Additionally, titanium fiber papers have gained traction in the aerospace sector for their lightweight yet strong characteristics, making them suitable for applications such as sound absorption, thermal management, and composite reinforcement.
Titanium fiber paper is produced from titanium fibers through a laying process that involves lamination and lapping. The laminated titanium fibers are then sintered at high temperature, thereby creating a strong and porous three-dimensional fiber network. This three-dimensional structure endows titanium fiber papers with high surface area-to-volume ratio, high porosity, and high permeability. On top of these properties, titanium fiber papers are also known to be electrically conductive, workable (i.e., fiber papers can be rolled and processed), and highly resistant to corrosion and thermal stress.
Titanium fiber papers are used in a wide array of applications including aerospace, medical, military, and filtration. Recently, they have been employed as flow field and anodic distributors in fuel cell and electrolysis stacks.
At the cathode side, carbon paper is the predominantly used porous transport layer. On the other hand, at the oxygen (anode) side of fuel cells, the environment is much more corrosive because of usage of pure oxygen and application of potentials as high as 2 V. The highly oxidative environment at the anode corrodes the carbon-based LGDLs, thereby forming CO2 (Eqn. 1) and carbonate ions (Eqn. 2) in acidic and basic media, respectively. Carbon corrosion drastically reduces the the activity and stability of the anode during galvanic or electrolytic operations. For these reasons, metal-based PTLs, specifically titanium fiber papers, are used at the anode of fuel cells and water electrolyzers.
Carbon Fiber Paper
Titanium Fiber Paper
When it comes to tough filtration jobs, stainless steel sintered fiber felt is the material you need, but many are still in the dark about its full potential. How does it withstand high pressures and extreme temperatures? Why is it so reliable for filtering fine particles? In this guide, we’ll answer these questions and more. We’ll explain what sintered fiber felt is, how to choose the right type based on micron rating and porosity, and dive into its key characteristics like high dirt-holding capacity and corrosion resistance. We’ll also cover real-world applications, from polymer filtration to aerospace, and explore how it offers cost savings through cleanability and reusability. Ready to unlock the secrets of this versatile material? Let’s dive in!
Stainless steel sintered fiber felt is a high-performance, non-woven filtration medium made through sintering and bonding short stainless steel fibers. This process creates a porous structure with evenly distributed pores, allowing for efficient filtration and fluid flow.
The material is highly durable and offers high temperature resistance (from 300°C to °C), corrosion resistance, and mechanical strength, making it ideal for filtering high-viscosity fluids and gases in demanding environments. Its high porosity and uniform pore size distribution prevent clogging and damage, ensuring reliable performance even under pressure.
Used in applications such as polymer filtration, gas filtration, liquid purification in industries like pharmaceuticals and petroleum, and even aerospace and automotive systems, sintered fiber felt provides superior dirt holding capacity and improved flow characteristics. It’s easy to clean and reusable, making it a cost-effective and eco-friendly solution for long-term use.
When selecting 316L stainless steel sintered metal fiber felt, focus on the following factors:
316L Stainless Steel is chosen for its corrosion resistance, especially in harsh environments or hygiene-critical applications. The sintering process creates a robust, durable structure with multiple pore sizes, offering a combination of high dirt-holding capacity and precise filtration.
This type of metal fiber felt is commonly used in petrochemical, water treatment, and metallurgy industries, where durability and performance under harsh conditions are crucial. The sintering process also enhances strength, making it resistant to thermal shock and improving overall longevity.
Stainless steel sintered fiber felt is ideal for liquid and gas filtration across various industries, especially in high-temperature environments. It is commonly used in:
This versatile material’s strength, heat resistance, and filtration efficiency make it indispensable for these demanding applications.
Stainless steel sintered fiber felt offers numerous benefits that make it ideal for demanding filtration applications. Here are its key advantages:
These benefits make stainless steel sintered fiber felt a reliable, long-lasting, and efficient filtration medium across industries.
Stainless steel sintered fiber felt is known for its high porosity, excellent permeability, and durability. These characteristics make it ideal for a wide range of filtration applications. Key features include:
These features make stainless steel sintered fiber felt a versatile and reliable filtration solution for various industrial applications.
What Is the Role of Stainless Steel Sintered Fiber Felt?
This is mainly used for industrial and heavy-duty filtration processes such as polymer filtration and polyester melt purification.
When choosing stainless steel sintered fiber felt, consider the micron rating, which determines the particle size the filter captures. A finer rating offers better filtration but may reduce flow rate. Porosity and permeability are important for maintaining high flow rates and minimizing pressure drop, while ensuring good dirt-holding capacity. Make sure the felt can handle the flow rate and pressure of your system without compromising performance.
The temperature resistance and material compatibility are key—stainless steel resists heat and corrosion, but alloys like 316L may be needed depending on the application. Filtration area is also essential; larger areas accommodate higher flow rates and greater contaminant loads.
Cleanability and reusability are advantages of sintered fiber felt. Consider how often cleaning is needed and which methods are suitable. Evaluate the system requirements, such as filtration accuracy and filter size, and check the material’s strength and corrosion resistance for your application. If necessary, consult with a filtration expert or test a small sample before making your final selection.
By focusing on these factors, you can choose the best sintered fiber felt for your needs.
It has a high temperature ranging from 300°C to °C.
Yes, it can, in the features of sintered fiber felt we mentioned that it is easy to clean and can last for long periods of time.
Amazingly, the stainless steel sintered fiber felt is easy to clean. This will come as a relief, as there might be a headache after the job this item undergoes. Do not also forget that this felt can be welded and machined because of its large filter area.
You can easily free porous metal filters of particulate by using backwash cleaning methods − without scraping, scrubbing, or rotating filter elements. You can also remove contaminants with water, steam, air, solvents, caustic or acid washing, or with ultrasonic cleaning.
It ranges from mm x 500mm to mm x mm.
Due to the different types of work to be performed, its specific size is selected according to your field application.
Different sectors make use of fiber felt, and each sector uses it differently. Here are some examples of liquids that are filtered in different sectors using sintered fiber felt.
Chemical and Petrochemical Sector – catalyst recovery, polishing of corrosive liquids, pre-coat filtration
Refinery – the high rate of liquid flows in the refinery is filtered by fiber felt Food and Beverages – polishing of syrups, liquors and other liquids
If you work in any chemical industry or own one, you should suggest that your industry gets this filter as it will be helpful.
Sintered fiber felt provides both surface and depth filtration.
Our filter media enables you to achieve high efficiency through filter cake accumulation (surface filtration), and also provides high dust collection capacity for deep particle capture (depth filtration).
At this point, no one will hold you in a negative light for thinking if there is anything in the world that does not require the stainless steel felt. After all, filtration is an essential aspect of life that we cannot underplay. The role of the metal fiber felt in burners is to ensure that there is proper combustion and gives you the perfect output which you desire.
Also, with the knowledge gotten about stainless steel fiber felt, we hope you can differentiate it from others as this article has highlighted its uses, and the size it comes in.
Always keep in mind that you should choose a felt based on the purpose of the job you are doing. If you are going for anything that needs an industrial process, the stainless steel felt should be your first and only choice.
With all the knowledge of this article, it is hopeful that you do not seem lost the next time people are talking about the metal fibre felt or its components.