Porous Stainless Steel Products With High Filtration Accuracy & Good Mechanical Properties

Porous stainless steel products are made of stainless steel powder as raw material without adding adhesive. After cold isostatic pressing (CIP), they are made by vacuum sintering at high temperatures. The pore size and distribution of the element can be adjusted to develop filtration products that ultimately meet the needs of users.

Porous stainless steel products can realize micron-level precision filtration and can separate solid particle impurities into liquids and gases. When the filter disc reaches a certain thickness, the filter element can be washed by reverse pressure so that the filter element can be used again.

Different shapes of porous stainless steel products made from stainless steel powder sintering technology

Advantages

Good air permeability & high filtration precision
Controllable pore size & porosity
Stable shape & good mechanical properties
Good thermal conductivity, heat resistance & heat dissipation
Backwashable & reusable

Specification

Table 1: Physical & Chemical Properties of Porous Stainless Steel Products
Material	Filter rating	Porosity	Penetrability	Working pressure	Working temperature	Shape	Specific surface area
Stainless steel powder	0.5–70 μm	25–45%	3–1300 m³/m²hKPa	3 MPa	600 °C	Round disc, sheet, tube, round bar, cap	10–40 cm²/cm³

Table 2: Specification of Porous Stainless Steel Products
Type	Length (Dia.)	Width (Dia.)	Thickness	Customized
Sintered porous discs	Max diameter φ800 mm	-	0.5–30 mm	Yes
Sintered porous sheets	Max 800 mm	Max 350 mm	0.5–30 mm	Yes
Sintered porous tubes	Max of Single tube 1200 mm	Max diameter φ200 mm	Wall Thickness 2–10 mm	Yes

Boegger hot selling porous stainless steel products:

Porous stainless steel products made of 316L stainless steel are durable and have a longer service life;
Porous stainless steel products comply with ISO 9001:2015;
Our steel products can withstand oxidation, high temperatures, and high pressures;
Porous stainless steel products with a total porosity of 25% to 45%.

Application

According to its physical and structural characteristics, porous stainless steel sintered materials are mostly used in the fields of noise elimination, filtration and separation, fluid distribution, flow-limiting, capillary core, etc.

Chemical raw material production process in addition to impurity filtration, material decarburization filtration, and fine filtration
Ultrafiltration, RO, EDI system security filtration in water treatment
Deep filtration of finished products for the food and beverage industry
Filtration and recovery of precious metal catalysts in the petrochemical industry
Precision filtration of liquid raw materials, products, and pharmaceutical intermediates in the chemical industry
Reverse osmosis security filtration in the field of water injection filtration
Gas purification of steam and compressed air deoiling purification
Media purification and flow restriction for pneumatic components, lubricants, fuels, and hydraulic pressure systems
High temperature decarburization for the chemical dye industry

Products