SS 316 / 316L TeeASTM A403 · ASME B16.9 · Manufacturer, stockist & exporter, India
AISI 316L · UNS S31603
An SS 316 / 316L tee is a fitting with a 90° branch that splits or combines flow, made from SS 316 / 316L to ASTM A403 WP316L (buttweld) · ASTM A182 F316L (forged). Equal tees have the same size branch as the run; reducing tees have a smaller branch. Barred tees add internal bars so pipeline pigs pass the branch.
- ASTM A403
- ASME B16.9
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is an SS 316 / 316L Tee?
- What it is
- A fitting with a 90° branch that splits or combines flow
- Material
- ASTM A403 WP316L (buttweld) · ASTM A182 F316L (forged)
- Dimensions
- ASME B16.9 · B16.11
- Grade
- SS 316 / 316L · UNS S31603
- Best at
- Chloride-bearing process fluids, marine air and pharmaceutical service
SS 316 / 316L Tee Specification
| Product | SS 316 / 316L Tee |
|---|---|
| Material standard | ASTM A403 WP316L (buttweld) · ASTM A182 F316L (forged) |
| Dimensional standard | ASME B16.9 · B16.11 |
| Sizes | Buttweld ½" – 48" · forged ⅛" – 4" |
| Wall / class | Schedule to match pipe · Class 3000 / 6000 (forged) |
| Ends | Bevelled to ASME B16.25 |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Tee
Equal tees have the same size branch as the run; reducing tees have a smaller branch. Barred tees add internal bars so pipeline pigs pass the branch.
- Equal and reducing
- Barred tees for piggable lines
- Buttweld, socket weld or threaded
More on choosing: Tee guide.
SS 316 / 316L Tee: Why 316L for tees
Equal tees have the same size branch as the run; reducing tees have a smaller branch. Barred tees add internal bars so pipeline pigs pass the branch. In SS 316 / 316L, the choice usually comes down to the medium and temperature — the rows here are the points buyers check for this exact combination.
| Why this grade | Stainless fittings keep the line clean and corrosion-free. SS 316 / 316L is picked for chloride-bearing process fluids, marine air and pharmaceutical service. |
|---|---|
| Typical service | Chemical & process — Piping and vessels handling mild acids and chlorides. |
| Welding to carbon steel | ER309L (or E309L electrode) is the usual filler when joining it to carbon steel |
| Matching filler | ER316L (AWS A5.9) |
SS 316 / 316L Tee Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Nickel | As specified |
| Molybdenum | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Nitrogen | As specified |
| Phosphorus | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A240 for UNS S31603.
SS 316 / 316L Tee Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
| Hardness | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A240 for UNS S31603 — Annealed plate & sheet (316L).
Full chemistry, properties and equivalents are on the SS 316 / 316L grade page.
Other SS 316 / 316L pipe fittings
SS 316 / 316L Tees for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiSS 316 / 316L Tee dimensions — ASME B16.9
Values in mm, the same for every material; the wall thickness matches the pipe schedule.
| NPS | OD | Tee centre-to-end C |
|---|---|---|
| ½" | 21.3 | 25 |
| ¾" | 26.7 | 29 |
| 1" | 33.4 | 38 |
| 1½" | 48.3 | 57 |
| 2" | 60.3 | 64 |
| 3" | 88.9 | 86 |
| 4" | 114.3 | 105 |
| 6" | 168.3 | 143 |
| 8" | 219.1 | 178 |
| 10" | 273.1 | 216 |
| 12" | 323.9 | 254 |
| 16" | 406.4 | 305 |
| 20" | 508.0 | 381 |
| 24" | 610.0 | 432 |
Full chart: ASME B16.9 fitting dimensions.
SS 316 / 316L Tee — questions buyers ask
What is a barred tee?
A tee with bars welded across the branch opening so a pipeline pig cannot enter the branch.
Can SS 316 / 316L tees be welded to carbon steel?
Yes — ER309L (or E309L electrode) is the usual filler when joining it to carbon steel.
Which standard covers SS 316 / 316L tees?
The material is ASTM A403 WP316L (buttweld) · ASTM A182 F316L (forged); dimensions follow ASME B16.9 · B16.11. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a SS 316 / 316L tee?
The alloy price, the size and schedule or class, quantity, and the testing and documents required. Send your list and we quote the same working day.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026