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Illustrative bright stainless steel flanges and pipe fittings in a clean process environment

Alloy flanges and fittings

Stainless Steel 904L Flanges Manufacturer & Exporter

Raymond Tube Industries manufactures, supplies, and exports Stainless Steel 904L / UNS N08904 flanges for specified acid-process and high-alloy stainless piping systems. Buyers can define flange form, NPS or DN, class, facing, bore, material and dimensional standards, inspection, testing, documentation, packing, quantity, and destination.

Technical snapshot

Key details for your specification.

Material identity

Stainless Steel 904L / UNS N08904

Product route

Flanges

Dimensional control

ASME B16.5 dimensional and facing review

Service discussion

defined chemical and petrochemical corrosion review

Controlled size architecture

Flange size and configuration matrix

NPS 1/2 through NPS 24 under ASME B16.5. Standard dimensions are shown for specification planning; availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

Final RFQ confirmation

Class / schedule scope

Classes 150, 300, 400, 600, 900 and 1500. Class 2500 requires the applicable NPS and current governing table to be checked.

Facing / end scope

RF / RTJ as applicable

ASME B16.5 flanges nominal size and configuration guide
Nominal sizeDNProductStandardRFQ review
1/2"DN 15FlangeASME B16.5Final RFQ
3/4"DN 20FlangeASME B16.5Final RFQ
1"DN 25FlangeASME B16.5Final RFQ
1-1/4"DN 32FlangeASME B16.5Final RFQ
1-1/2"DN 40FlangeASME B16.5Final RFQ
2"DN 50FlangeASME B16.5Final RFQ
2-1/2"DN 65FlangeASME B16.5Final RFQ
3"DN 80FlangeASME B16.5Final RFQ
4"DN 100FlangeASME B16.5Final RFQ
5"DN 125FlangeASME B16.5Final RFQ
6"DN 150FlangeASME B16.5Final RFQ
8"DN 200FlangeASME B16.5Final RFQ
10"DN 250FlangeASME B16.5Final RFQ
12"DN 300FlangeASME B16.5Final RFQ
14"DN 350FlangeASME B16.5Final RFQ
16"DN 400FlangeASME B16.5Final RFQ
18"DN 450FlangeASME B16.5Final RFQ
20"DN 500FlangeASME B16.5Final RFQ
22"DN 550FlangeASME B16.5Final RFQ
24"DN 600FlangeASME B16.5Final RFQ

This table records nominal standard scope, not a promise that every type, class, facing, bore, or material combination is available.

Use the RFQ selector to state product form, NPS / DN, class or schedule, facing or end connection, testing, and documents for review.

Controlled size architecture

Flange size and configuration matrix

NPS 26 through NPS 60 under ASME B16.47. Standard dimensions are shown for specification planning; availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

Final RFQ confirmation

Class / schedule scope

Series and class require technical review

Facing / end scope

Facing / drawing review

ASME B16.47 large-diameter flanges nominal size and configuration guide
Nominal sizeDNProductStandardRFQ review
26"DN 650Large-diameter flangeASME B16.47Final RFQ
28"DN 700Large-diameter flangeASME B16.47Final RFQ
30"DN 750Large-diameter flangeASME B16.47Final RFQ
32"DN 800Large-diameter flangeASME B16.47Final RFQ
34"DN 850Large-diameter flangeASME B16.47Final RFQ
36"DN 900Large-diameter flangeASME B16.47Final RFQ
38"DN 950Large-diameter flangeASME B16.47Final RFQ
40"DN 1000Large-diameter flangeASME B16.47Final RFQ
42"DN 1050Large-diameter flangeASME B16.47Final RFQ
44"DN 1100Large-diameter flangeASME B16.47Final RFQ
46"DN 1150Large-diameter flangeASME B16.47Final RFQ
48"DN 1200Large-diameter flangeASME B16.47Final RFQ
50"DN 1250Large-diameter flangeASME B16.47Final RFQ
52"DN 1300Large-diameter flangeASME B16.47Final RFQ
54"DN 1350Large-diameter flangeASME B16.47Final RFQ
56"DN 1400Large-diameter flangeASME B16.47Final RFQ
58"DN 1450Large-diameter flangeASME B16.47Final RFQ
60"DN 1500Large-diameter flangeASME B16.47Final RFQ

RTI large-diameter availability is not published. Use the technical quotation flow with the current dimensional standard and drawing.

Use the RFQ selector to state product form, NPS / DN, class or schedule, facing or end connection, testing, and documents for review.

Controlled size selector

Configure this alloy requirement.

Use the controlled NPS / DN conversion, then pass size, class or schedule, facing or end connection, and quantity to the RFQ.

Final RFQ confirmation

Selected requirement

Stainless Steel 904L / UNS N08904 | Weld Neck Flange | 6" / DN 150 | Class 600 | RTJ

ASME B16.5. Availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

View technical detailsRequest Technical Quotation

Engineering discussion

Context before component selection.

Engineering context

Stainless Steel 904L flanges cannot be defined by grade alone. Their engineering review depends on the exact product form, connection geometry, design boundary, material condition where relevant, inspection plan, and the project specification that governs acceptance.

Specification controls

For Stainless Steel 904L Flanges, the RFQ must turn Stainless Steel 904L / UNS N08904 into a defined material, product-form, dimensional, inspection, document-release, quantity, packing, and delivery record. This avoids using a general alloy or product label as an unapproved technical conclusion.

Procurement decision

Before issuing an order for Stainless Steel 904L Flanges, reconcile Flanges with the drawing or piping class, standard edition, test plan, acceptance authority, and certificate requirements. Any deviation, alternative material, or added test is a project engineering decision.

Standards and release

Define the basis, then document it.

Material route

Project-specific product-form standard to be confirmed against the purchase specification

Dimensional route

ASME B16.5 dimensional and facing review

Quality release

MTC, PMI, inspection records, and project document requirements

Related application

Data center cooling systems

Review how water chemistry, cooling architecture, equipment interfaces, inspection, and documentation shape stainless and duplex component RFQs.

Open engineering hub
Location engineeringAshburn, Virginia, USALocation engineeringDublin, IrelandLocation engineeringAmsterdam, NetherlandsLocation engineeringCouncil Bluffs, Iowa, USALocation engineeringSan Jose, California, USA

Applications and next steps

Connect the requirement to the right workflow.

acid-process and high-alloy stainless piping systems

Specification-led flange packages

Project piping-class procurement

Drawing and data-sheet enquiries

Stainless Steel Flanges overviewReview the authoritative stainless steel flanges product-family route.Material dataReview Stainless Steel 904L context.Product engineeringReview product configuration controls.Advanced RFQCapture enquiry data.

Buyer questions

Frequently asked questions.

Which flanges can be reviewed in Stainless Steel 904L?

The required configuration must be identified by the drawing or piping class. State the form, dimensions, facing or end connection, material route, and inspection scope for technical review.

Which standards should accompany a Stainless Steel 904L flanges enquiry?

Use the approved material product standard together with the governing dimensional standard, project specification, and any drawing or client inspection requirement.

Which records should be requested with Stainless Steel 904L flanges?

Define the MTC type, heat traceability, PMI, dimensional record, test evidence, third-party inspection requirement, marking, packing, and release dossier before quotation.

Technical quotation

Turn this guidance into a controlled request.

Capture the material, product form, dimensions, standard, inspection, documentation, packing, and destination requirements for review.

Submit Technical RFQEmail Export Desk

Technical quotation desk

Have a Technical Requirement?

Send us your material grade, size, class or schedule, quantity, and specification.

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