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Finished alloy elbows and tees organized in component bins

Alloy flanges and fittings

Stainless Steel 316 Pipe Fittings Manufacturer & Exporter

This Stainless Steel 316 fitting route is organized for buyers who must keep WP316 grade identity, construction class, geometry, wall schedule, end preparation, and corrosion context visible in one enquiry. Submit separate line items for elbows, tees, reducers, caps, stub ends, and forged fittings with standards, quantities, inspection, documents, and destination.

Technical snapshot

Key details for your specification.

Material identity

Stainless Steel 316 / ASTM A403 WP316 for the applicable wrought fitting class

Material standard

ASTM A403 / ASME SA403; specify WP grade and seamless or welded class

Product definition

Geometry, each end size, schedule or wall, end preparation, and dimensional route

Inspection

MTC, heat or lot traceability, dimensions, PMI, NDE, and TPI as ordered

Controlled size architecture

Pipe fitting size and schedule matrix

NPS 1/2 through NPS 48 under ASME B16.9. 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

Schedule or wall thickness as specified for the fitting geometry

Facing / end scope

Butt-weld bevel

ASME B16.9 butt-weld fittings nominal size and configuration guide
Nominal sizeDNProductStandardRFQ review
1/2"DN 15Butt-weld fittingASME B16.9Final RFQ
3/4"DN 20Butt-weld fittingASME B16.9Final RFQ
1"DN 25Butt-weld fittingASME B16.9Final RFQ
1-1/4"DN 32Butt-weld fittingASME B16.9Final RFQ
1-1/2"DN 40Butt-weld fittingASME B16.9Final RFQ
2"DN 50Butt-weld fittingASME B16.9Final RFQ
2-1/2"DN 65Butt-weld fittingASME B16.9Final RFQ
3"DN 80Butt-weld fittingASME B16.9Final RFQ
4"DN 100Butt-weld fittingASME B16.9Final RFQ
5"DN 125Butt-weld fittingASME B16.9Final RFQ
6"DN 150Butt-weld fittingASME B16.9Final RFQ
8"DN 200Butt-weld fittingASME B16.9Final RFQ
10"DN 250Butt-weld fittingASME B16.9Final RFQ
12"DN 300Butt-weld fittingASME B16.9Final RFQ
14"DN 350Butt-weld fittingASME B16.9Final RFQ
16"DN 400Butt-weld fittingASME B16.9Final RFQ
18"DN 450Butt-weld fittingASME B16.9Final RFQ
20"DN 500Butt-weld fittingASME B16.9Final RFQ
22"DN 550Butt-weld fittingASME B16.9Final RFQ
24"DN 600Butt-weld fittingASME B16.9Final RFQ
26"DN 650Butt-weld fittingASME B16.9Final RFQ
28"DN 700Butt-weld fittingASME B16.9Final RFQ
30"DN 750Butt-weld fittingASME B16.9Final RFQ
32"DN 800Butt-weld fittingASME B16.9Final RFQ
34"DN 850Butt-weld fittingASME B16.9Final RFQ
36"DN 900Butt-weld fittingASME B16.9Final RFQ
38"DN 950Butt-weld fittingASME B16.9Final RFQ
40"DN 1000Butt-weld fittingASME B16.9Final RFQ
42"DN 1050Butt-weld fittingASME B16.9Final RFQ
44"DN 1100Butt-weld fittingASME B16.9Final RFQ
46"DN 1150Butt-weld fittingASME B16.9Final RFQ
48"DN 1200Butt-weld fittingASME B16.9Final RFQ

Elbows, tees, reducers, caps, returns, and stub ends do not share identical dimensional availability. Confirm the exact fitting geometry before quotation.

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 316 | 90 degree LR Elbow | 6" / DN 150 | Sch 80

ASME B16.9. Availability, manufacturing route, and delivery are confirmed against the final RFQ specification.

View technical detailsRequest Technical Quotation

Engineering discussion

Context before component selection.

WP316, WP316L, and dual grade need deliberate control

A fitting enquiry should not rely on the shorthand 316/316L when the project names a specific WP grade. Preserve the ordered designation in the quotation, manufacturing route, MTC, marking, and release dossier, and document any permitted dual certification before acceptance.

The fitting class carries construction information

ASTM A403 class designations distinguish seamless or welded construction and examination routes. Include the class with geometry and schedule so an elbow or reducer offer can be evaluated on the same technical basis rather than only on nominal size and alloy family.

Service medium belongs in the RFQ

Stainless Steel 316 is often considered for process environments where molybdenum-bearing stainless is relevant, but chloride concentration, temperature, crevice geometry, cleaning chemicals, and upset conditions remain decisive. Share those inputs for engineering review before substitution or final approval.

Standards and release

Define the basis, then document it.

ASTM A403 / ASME SA403

State WP316 and the required fitting class. Construction method and NDE extent cannot be inferred from the words stainless steel pipe fitting.

ASME B16.9 / MSS route

Identify butt-weld fitting geometry, NPS, schedule or wall, center-to-end dimensions, tolerances, and the approved dimensional edition.

Project release

Coordinate material records, PMI, NDE reports where specified, dimensions, marking, packing, and TPI release against the actual line-item schedule.

Applications and next steps

Connect the requirement to the right workflow.

Chemical process fitting packages

Coastal process utilities after material review

Hygienic and clean-process support piping

Plant maintenance and turnaround schedules

Stainless Steel Pipe Fittings overviewReview the authoritative stainless steel pipe fittings product-family route.Stainless Steel 316L Pipe FittingsOpen the controlled WP316L commercial page.ASME B16.9 Fittings GuideReview the dimensional framework for wrought butt-weld fittings.Third-Party Inspection GuidePrepare hold points, witness scope, and release evidence.Request Technical QuotationSend the SS 316 fitting schedule and inspection requirements.

Buyer questions

Frequently asked questions.

Should WP316 and WP316L fittings be quoted as one grade?

Only when the purchaser permits a dual-grade route. Otherwise the quotation, MTC, and marking should follow the exact WP grade in the order.

What does the ASTM A403 fitting class control?

It communicates construction and applicable examination requirements. State the required class with geometry, size, wall, and end preparation.

How should an SS 316 reducer be specified?

Provide concentric or eccentric form, both end sizes, each end schedule or wall, orientation where relevant, end preparation, standard, quantity, and inspection scope.

Can PMI and TPI be requested for SS 316 fittings?

Yes. Define the PMI extent, TPI hold or witness points, MTC, NDE reports, dimensions, marking, photographs, packing, and 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