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METALEX PIPING SOLUTION

Flanges

Connections for pressure and process lines.

Illustrative flanges product photograph

Illustrative product image. Confirm exact finish and form against the quoted material.

Flanges for industrial supply

Connections for pressure and process lines. Metalex can discuss grade, form, finish, dimensional tolerances, documentation and packing with your procurement team. Confirm stock and delivery against your purchase specification.

Grades to ask about

Material grades are confirmed for the precise product and service. State the required standard and grade when enquiring.

Catalogue reference: Flanges

Catalogue size: 1/2–48 in (15–1200 NB); classes 150–2500 and PN6–PN64. Weld-neck, slip-on, blind, lap-joint, threaded, orifice and spectacle-blind forms; spectacle blinds are highlighted. Check the applicable dimensional standard: ASME B16.5, B16.47, B16.48 or EN 1092.

Listed material families include stainless 304/304L, 316/316L and 904L; duplex F51/F60 and super duplex F53/F55; SMO 254 F44; carbon steel, alloy steel, nickel alloys, copper-nickel and titanium. Agree material standard and grade for each forged or plate-made flange.

Metalex catalogue (2022) describes a product range, not real-time stock or a test certificate. Confirm grade, dimensions and documentation for your enquiry.

Specification overview

DetailOptions to specify
Flange type / standardWeld-neck, slip-on, blind or lap-joint; specify the applicable dimensional and material standards, such as ASME B16.5 where appropriate.
Grade range304/304L · 316/316L · Duplex 2205 and other grades on request; confirm availability
Nominal size / ratingState NPS, pressure class, pipe schedule or bore, facing, bolt pattern and gasket requirements.
Facing / materialRaised face, flat face or ring-type joint as required; confirm grade and mating parts.
DocumentationAsk which certificate and heat or batch traceability documents are available for the specific material offered.

Choose the right specification

Send the product type, applicable standard, grade or material, nominal size / rating, quantity, inspection requirements and destination. We will confirm what can be sourced for the exact enquiry.

Facing / material: Raised face, flat face or ring-type joint as required; confirm grade and mating parts. Material and dimensional standards, tests and certificate type should be agreed for this product before ordering.

Grade selection at a glance

GradeTypical selection reasonCheck before ordering
304 / 304LGeneral fabrication and mild process environmentsWelded assemblies: verify L-grade certification
316 / 316LAdded molybdenum for improved pitting resistance in many chloride environmentsAssess chloride concentration, temperature and crevices
Duplex 2205Higher yield strength and better chloride SCC resistance than common austenitic gradesConfirm UNS S32205 or S31803 and welding procedure

Starter grade pages

Detailed specifications for your grade, size and standard are available on request.

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