Materials and alloys for metal filtration

Start with the fluid, then choose the filter structure

Material selection connects the process chemistry with the component that holds the filtration geometry. Record the fluid composition, concentration, operating temperature, dissolved oxygen and cleaning cycle. Select the grade for the filter layer, then define the support, frame, end fittings and welds as one wetted assembly. Kaifil turns these inputs into mesh, cut blanks and fabricated filter components.

Three decisions define a metal filter

The alloy determines how the metal responds to its environment. The weave, slot or porous structure determines the flow passages. The support and joint design determine how the element carries differential pressure and fits its housing. Keep these decisions together on the specification: a change in alloy preserves neither a wire diameter nor a filtration rating automatically.

Read chemistry and grade names precisely

UNS designations identify specific compositions; EN material numbers identify grades within their own specification system. The L suffix in 304L and 316L denotes lower carbon. Duplex describes an austenitic-ferritic microstructure. Monel identifies nickel-copper alloys, while Inconel and Hastelloy cover several distinct nickel-alloy compositions. The topic pages below resolve each family into named grades and element tables.