Overview
A porous filter medium made by air-laying uniform-diameter metal fiber into a web and vacuum-sintering it. The three-dimensional structure gives high porosity and uniform pore size; multilayer builds balance filtration rating against dirt-holding capacity. Available as sheet or roll.
Grades and Parameters
| Grade | Material | Key data | Typical use |
|---|---|---|---|
| Stainless sintered felt | 304 / 316L stainless fiber | Multilayer, uniform porosity, high strength | Polymer melt, hydraulic oil, process gas |
| FeCrAl sintered felt | FeCrAl fiber | Rated to 900 °C, high porosity | Diesel and gasoline particulate filters, hot gas |
| Titanium fiber felt | Micron-purity titanium fiber | High porosity, large surface area, uniform pore distribution, corrosion resistant, good water permeability | Fuel cell gas diffusion layers, electrolysis, new energy |
| Stainless fiber blanket | Stainless / FeCrAl / Hastelloy | Consistent fiber diameter, very high porosity, flexible sheet and roll | Pre-filtration, acoustic, cushioning |
Why fiber felt
Compared with wire mesh or powder-sintered plate, the flow path in felt is three-dimensionally tortuous: particles are trapped through the depth rather than only at the surface, so dirt-holding capacity is higher at the same pressure drop. Porosity is high, so air and water permeability is better; the flexible structure can be rolled and die-cut, which simplifies assembly.
Delivery
[To be confirmed: filtration rating range, air permeability, standard width and thickness, MOQ, lead time]
| Model | Stainless / FeCrAl / titanium / fiber blanket |
|---|---|
| Material / Process | 304 and 316L stainless fiber; FeCrAl fiber; pure titanium fiber; Hastelloy |
| Certification | FeCrAl felt rated to 900 °C |