Engineering calculators / Material selection
Metal Filter Material & Chemical Compatibility Review
Quick definition: This interactive worksheet identifies corrosion concerns to investigate for common metal filtration materials. It does not rate any material as universally compatible, predict corrosion rates, approve a fluid service or replace laboratory/field testing.
How to use the screening result
The result is an investigation prompt, not a material ranking. Gather the exact chemical constituents and concentration range, maximum and minimum temperature, oxygen/oxidant contamination, flow or stagnant conditions, corrosion allowance and component drawing. Compare the candidate with the manufacturer’s alloy-specific corrosion data for that medium and condition, then qualify the completed filter assembly where necessary.
Key corrosion modes: uniform dissolution, pitting, crevice corrosion, stress-corrosion cracking, galvanic effects, corrosion at welds and changes due to cleaning. Fine filter wires and porous media can lose function before a thick reference coupon shows much uniform thickness loss.
Official alloy and corrosion reference sources
Outokumpu: stainless steel corrosion and localized attack; TIMET: titanium corrosion technical manual; Special Metals: aqueous corrosion handbook; Special Metals: Monel 400; Special Metals: Inconel 625; Haynes: corrosion environments and C-family alloys.
Frequently asked questions
Is 316L always better than 304?
No. Grade 316L includes molybdenum and often offers improved resistance to localized chloride corrosion, but neither grade is universally suited to seawater, acids or crevice-rich assemblies. Confirm the actual fluid and conditions.
Can a corrosion compatibility chart predict filter lifetime?
No. General corrosion rate alone may miss pitting, perforation of thin wires, damaged welds, contamination, erosion and repeated cleaning. Lifetime needs an applicable service or test basis.
Can a corrosion rate from solid plate be applied to sintered felt?
Not without qualification. Porous media expose additional surfaces, flow paths and processing histories; use representative product testing when the consequence of failure is material.
Does choosing an expensive nickel alloy remove corrosion risk?
No. Oxidizing salts, fluoride, acid concentration, temperature and impurities affect nickel alloys differently. Compare exact grade-specific test data.
Related information: metal material and grade reference, titanium sintered fiber felt, nickel wire mesh and Contact Our Engineers for a custom solution.