Hastelloy C276 PlugASTM B462 · ASME B16.11 · Manufacturer, trader & exporter, India
Alloy C-276 · UNS N10276
A Hastelloy C276 plug is a threaded fitting that closes a female connection, made from Hastelloy C276 to ASTM B462 / B564. Hex-head, square-head and round-head plugs close threaded outlets, drains and vents. Made to ASME B16.11.
- ASTM B462
- ASME B16.11
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is a Hastelloy C276 Plug?
- What it is
- A threaded fitting that closes a female connection
- Material
- ASTM B462 / B564
- Dimensions
- ASME B16.11
- Grade
- Hastelloy C276 · UNS N10276
- Best at
- The most aggressive mixed acids, wet chlorine and hypochlorite
Hastelloy C276 Plug Specification
| Product | Hastelloy C276 Plug |
|---|---|
| Material standard | ASTM B462 / B564 |
| Dimensional standard | ASME B16.11 |
| Sizes | ⅛" – 4" (ASME B16.11) |
| Wall / class | Class 2000 / 3000 / 6000 / 9000 |
| Ends | Socket weld · NPT threaded |
| 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 Plug
Hex-head, square-head and round-head plugs close threaded outlets, drains and vents. Made to ASME B16.11.
- Hex, square and round head
- NPT threads
- Forged from bar
More on choosing: Plug guide.
Hastelloy C276 Plug: Why C276 for plugs
Hex-head, square-head and round-head plugs close threaded outlets, drains and vents. Made to ASME B16.11. In Hastelloy C276, 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. Hastelloy C276 is picked for the most aggressive mixed acids, wet chlorine and hypochlorite. |
|---|---|
| Typical service | Chemical processing — Reactors, heat exchangers and piping for mixed acids. |
| 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-4 (AWS A5.14) |
| Sour service | Listed in NACE MR0175 / ISO 15156-3 within its limits — state it on the order |
Hastelloy C276 Plug Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Nickel | As specified |
| Molybdenum | As specified |
| Chromium | As specified |
| Iron | As specified |
| Tungsten | As specified |
| Cobalt | As specified |
| Carbon | As specified |
| Manganese | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM B575 for UNS N10276.
Hastelloy C276 Plug 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 B575 for UNS N10276 — Solution-annealed plate & sheet.
Full chemistry, properties and equivalents are on the Hastelloy C276 grade page.
Other Hastelloy C276 pipe fittings
Hastelloy C276 Plug — questions buyers ask
Which plug head type should I use?
Hex-head plugs are easiest to tighten with a spanner; square-head suits older equipment; round-head is used where the plug should not be removed.
Can Hastelloy C276 plugs 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 Hastelloy C276 plugs?
The material is ASTM B462 / B564; dimensions follow ASME B16.11. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Hastelloy C276 plug?
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 Hastelloy C276 plugs to NACE MR0175?
Yes. Hastelloy C276 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