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Flanges

5 items in the catalogue

Product Pipe diameter PN Bolt holes Grade Availability Price Action
Stainless steel forged flat flange DN300 323,9mm EN1092-1/01B (PN10/16) 1.4401 / 1.4404 / 316 / 316L S-KNP/323.90/1.4404/PN16 DN300 / 323.90mm PN10, PN16 12 1.4401, 1.4404… in stock 195,70 € (159,11 € excl. VAT) Add to basket
Stainless steel forged flat flange DN300 323,9mm EN1092-1/01B (PN10) 1.4401 / 1.4404 / 316 / 316L S-KNP/323.90/1.4404 DN300 / 323.90mm PN10 12 1.4401, 1.4404… in stock 163,99 € (133,33 € excl. VAT) Add to basket
Stainless steel forged flat flange DN300 323,9mm EN1092-1/01B (PN10) 1.4541 / 321 S-KNP/323.90/1.4541B DN300 / 323.90mm PN10 12 1.4541, 321 in stock 137,55 € (111,83 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN300 323,9mm EN1092-1/11B1 (PN10) 1.4301 / 1.4307 / 304 / 304L S-KNSZ/323.90/1.4307 DN300 / 323.90mm PN10 12 1.4301, 1.4307… in stock 191,87 € (155,99 € excl. VAT) Add to basket
Stainless steel forged weld neck flange DN300 323,9mm EN1092-1/11B1 (PN10) 1.4541 / 321 S-KNSZ/323.90/1.4541 DN300 / 323.90mm PN10 12 1.4541, 321 in stock 201,53 € (163,85 € excl. VAT) Add to basket

Stainless and acid-resistant steel flanges for joining pipelines: weld neck, slip-on, blind and lap joint. Choose a flange type or narrow the list with the pipe diameter, nominal pressure and steel grade filters.

Steel grades

Each grade has its own page with chemical composition, equivalent designations and the full list of products in stock.

Acid-resistant

Austenitic with molybdenum – resistant to pitting and crevice corrosion; for chemicals, processing and chloride environments.

Austenitic stainless

Chromium-nickel without molybdenum – the standard choice for structures, food service and interiors.

Heat-resistant

Higher chromium and silicon – retain strength and scaling resistance at high temperatures.

Ferritic

Chromium without nickel – cheaper, magnetic, good where atmospheric corrosion resistance matters.

Duplex

Austenitic-ferritic structure – twice the yield strength with good stress corrosion resistance.