The 316 Stainless Steel Sintered Powder Filter Element 35×75 is a high-precision cylindrical filtration component manufactured from 316L stainless steel metal powder through a specialized high-temperature vacuum sintering process.
Unlike woven wire mesh filters, sintered powder filters are produced by pressing and sintering fine stainless steel powder into a rigid, porous structure. The sintering process—heating the powder compact to temperatures below the melting point —causes the powder particles to diffusion-bond together, creating a highly uniform, interconnected pore structure with excellent permeability, high porosity, and precise filtration ratings.
Below is the specification of the custom sintered filter. If you are interested in this kind of filters, please contact us to get more details.
| Outer diameter | 35 mm |
| Height | 75 mm |
| Working temperature | -20~+100℃ |
| Filter layer | 316 Stainless steel |
| Filtration rate | 50 μm |
| Connection | ¼” BSP female thread connection |
| Origin | Henan, China |
| Brand | Huahang Filter |
The 316 Stainless Steel Sintered Powder Filter 60×400 is widely used across demanding industries:
Petrochemical & Refining
Catalyst recovery and filtration
High-temperature gas purification
Hydrocarbon and refinery stream filtration
Chemical Processing
Filtration of aggressive acids, alkalis, and solvents
High-temperature decarburization
Chemical intermediate and raw material filtration
Pharmaceutical & Biotechnology
API and pharmaceutical intermediate filtration
Sterile gas and liquid filtration
High-purity process streams
Water Treatment
Ultrafiltration and RO pre-filtration
Oilfield injection water filtration
Industrial wastewater treatment
Power Generation
Nuclear and thermal power water filtration
High-temperature gas and steam filtration
Cooling water systems
Compressed Air & Gas
Steam and compressed air purification
High-pressure gas distribution
Flow restriction and particle removal
This sintered filter is manufactured by Huahang Filter, leveraging expertise in powder sintering technology and metallurgy. We focus on producing reliable, application-specific metal filters. Our controlled sintering process ensures consistent pore structure and performance in every batch. We provide technical support for material selection and can offer custom versions of this platform element with different end fittings, lengths, or surface treatments to meet unique system integration needs.
Controlled Sintering for Consistent Porosity: Our sintering process is finely tuned to create a uniform porous matrix, providing a reliable and predictable absolute filtration rating (e.g., 2, 5, 10, 20, 40 microns) in this small form factor.
Precision Thread Machining: The G¾ threads are machined to exacting standards, ensuring a perfect seal with standard fittings and preventing cross-threading or leakage in critical fluid paths.
High Material Purity & Integrity: We use high-grade 304 or 316L stainless steel powder, resulting in a filter with excellent corrosion resistance and structural integrity suitable for demanding analytical or process applications.
Durability and Cleanability: Despite its small size, the monolithic sintered structure is robust and can be backflushed or ultrasonically cleaned numerous times, offering long-term service life and value.
Contact us for more details about these metal sintered filters.
Q1: What micron ratings are available for stainless steel sintered powder filters?
A: Sintered powder filters are available in a wide range of pore/filtration ratings.
Depending on the manufacturer and production process, commercial products can cover approximately 0.2–100 μm, while some specialized products offer even finer ratings.
Q2: Is 316L better than 304 for sintered powder filters?
A: Not necessarily. The correct choice depends on the application.
304 stainless steel is suitable for many general industrial filtration applications and can offer a lower material cost.
316L stainless steel provides improved corrosion resistance and is often preferred for:
For highly corrosive media, even 316L may not be sufficient, and alloys such as Hastelloy or Inconel may be considered.
Q3: Can stainless steel sintered powder filters withstand high temperatures?
A: Yes. High-temperature resistance is one of the major advantages of sintered metal filters.
Because the filtration medium is made entirely from metal powder, it does not rely on polymeric filter fibers or adhesives that may degrade at elevated temperatures.
However, the actual operating temperature depends on:
For example, current commercial 316L sintered powder cartridges specify operating temperatures around 400°C, while other engineered porous-metal media can operate at substantially higher temperatures depending on alloy and atmosphere.
Q4: Can stainless steel sintered powder filters be used for gas filtration?
A: Yes. They can be used for both gas and liquid filtration.
Gas applications include:
Porous-metal cartridges are also used for high-temperature gases, solvents, chemicals, polymers and pharmaceutical processes.
