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Finished alloy flanges in multiple product forms

Alloy flanges and fittings

Stainless Steel 304L Flanges Manufacturer & Exporter

Raymond Tube Industries manufactures, supplies, and exports Stainless Steel 304L flanges for defined process, utility, and project piping requirements. Buyers can specify the flange form, size, class, facing, bore, applicable material and dimensional standards, inspection, documentation, packing, quantity, and destination so the configuration can be reviewed against the approved project specification.

Technical snapshot

Key details for your specification.

Material identity

Stainless Steel 304L / ASTM A182 F304L

Material standard

ASTM A182 / ASME SA182 for applicable forged flange products

Flange form

State weld neck, blind, slip-on, socket weld, threaded, lap joint, or drawing form

Dimensional control

State class, facing, bore, and ASME or drawing basis

Release scope

Inspection and documents defined in the RFQ

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 304L | 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.

Flange form is the first commercial decision

Weld neck, blind, slip-on, socket weld, threaded, and lap joint flanges have different connection and dimensional controls. State the exact form before comparing any 304L quotation.

Class, facing, and bore should be explicit

Pressure class, RF or RTJ facing where applicable, bore, and gasket interface cannot be inferred from the material grade. Include them in the request with the chosen dimensional route.

Document release follows the agreed scope

Inspection and certificate requirements should be attached to the ordered configuration, then reconciled with marking, packing, and final release documentation.

Standards and release

Define the basis, then document it.

ASTM A182 F304L / ASME SA182 F304L

Applicable forged Stainless Steel 304L flange products should be ordered against the specified material-product standard, grade, heat treatment, testing, and project additions.

Flange dimensions

State the applicable ASME dimensional standard or approved drawing basis, together with class, facing, and bore.

Quality release

List MTC, PMI, dimensional inspection, marking, packing, and document requirements where specified.

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.

Defined utility and process line connections

Project piping-class flanges

Flange replacement and maintenance RFQs

Drawing-based component review

Stainless Steel Flanges overviewReview the authoritative stainless steel flanges product-family route.304L Material GuideReview material and RFQ controls.ASME B16.5 GuideReview flange dimensions, classes, and facings.Quality and TraceabilityPlan inspection and documentation before release.Request Technical QuotationSend the full flange configuration.

Buyer questions

Frequently asked questions.

Which 304L flange form should be stated in an RFQ?

State the exact connection form, such as weld neck, blind, slip-on, socket weld, threaded, lap joint, or an approved drawing-based configuration.

Should RF or RTJ facing be listed separately?

Yes. Facing, class, gasket basis, bore, and dimensional standard should be explicit in the flange RFQ.

What quality documents can be requested with 304L flanges?

State the agreed MTC, traceability, PMI, dimensional, marking, packing, and inspection-release requirements in the RFQ.

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.

Request Technical QuotationEmail Export DeskWhatsApp