Inconel 625 TeeASTM B366 · ASME B16.9 · Manufacturer, trader & exporter, India
Alloy 625 · UNS N06625
An Inconel 625 tee is a fitting with a 90° branch that splits or combines flow, made from Inconel 625 to ASTM B366 WPNCMC (buttweld) · ASTM B564 (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 B366
- 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 Inconel 625 Tee?
- What it is
- A fitting with a 90° branch that splits or combines flow
- Material
- ASTM B366 WPNCMC (buttweld) · ASTM B564 (forged)
- Dimensions
- ASME B16.9 · B16.11
- Grade
- Inconel 625 · UNS N06625
- Best at
- Seawater, high strength and high temperature in one alloy
Inconel 625 Tee Specification
| Product | Inconel 625 Tee |
|---|---|
| Material standard | ASTM B366 WPNCMC (buttweld) · ASTM B564 (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 (as specified in the PO) · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 or 3.2 on request / as specified in the PO |
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.
Inconel 625 Tee: Why 625 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 Inconel 625, 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 | Nickel-alloy fittings match nickel-alloy pipe in aggressive media. Inconel 625 is picked for seawater, high strength and high temperature in one alloy. |
|---|---|
| Typical service | Offshore & subsea — Risers, flowlines and clad pipe. |
| Welding to carbon steel | A nickel-base filler such as ERNiCr-3 (or ERNiCrMo-3) is used when joining it to carbon steel |
| Matching filler | ERNiCrMo-3 (AWS A5.14) |
| Sour service | Listed in NACE MR0175 / ISO 15156-3 within its limits — state it on the order |
Inconel 625 Tee Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Nickel | As specified |
| Chromium | As specified |
| Molybdenum | As specified |
| Niobium + Tantalum | As specified |
| Iron | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM B443 for UNS N06625.
Inconel 625 Tee Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | 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 B443 for UNS N06625 — Grade 1 annealed plate.
Full chemistry, properties and equivalents are on the Inconel 625 grade page.
Other Inconel 625 pipe fittings
Inconel 625 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.
Inconel 625 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 Inconel 625 tees be welded to carbon steel?
Yes — a nickel-base filler such as ERNiCr-3 (or ERNiCrMo-3) is used when joining it to carbon steel.
Which standard covers Inconel 625 tees?
The material is ASTM B366 WPNCMC (buttweld) · ASTM B564 (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 Inconel 625 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.
Can you supply Inconel 625 tees to NACE MR0175?
Yes. Inconel 625 is listed in NACE MR0175 / ISO 15156-3 within its limits; state NACE compliance on the order and it is confirmed on the certificate.
What documents do you supply?
EN 10204 3.1 or 3.2 certificates available on request / as specified in the PO; dimensional reports as required. PMI can be arranged depending on product and requirements, as specified in the PO.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026