Hastelloy C276 CoilASTM B575 UNS N10276 · Manufacturer, trader & exporter, India
Also sold as Alloy C-276 · UNS N10276 · W.Nr 2.4819 · Nicrofer 5716
Hastelloy C276 coil is supplied as full-width mother coil, slit coil or precision strip to ASTM B575. It is a nickel–molybdenum–chromium alloy with tungsten, chosen for the most aggressive mixed acids, wet chlorine and hypochlorite. Kanak Steel & Engineering Co. manufactures, trades and exports it from Mumbai; EN 10204 3.1 or 3.2 certificates are available on request / as specified in the PO. Markets we have supplied to include Oman, UAE, Saudi Arabia, Brazil, Argentina, Spain and Chile (India is the home market).
- Stock & mill supply
- EN 10204 3.1 / 3.2
- PMI on request
- NACE MR0175 on request
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is Hastelloy C276 Coil?
Hastelloy C276 coil is a nickel–molybdenum–chromium alloy with tungsten supplied as coil to ASTM B575 (UNS N10276). Buyers specify it for the most aggressive mixed acids, wet chlorine and hypochlorite. It is also sold as Alloy C-276, UNS N10276, W.Nr 2.4819.
- What it is
- Nickel–molybdenum–chromium alloy with tungsten
- Standard
- ASTM B575
- Forms
- Mother coil · slit coil · strip
- Density
- 8.89 g/cm³
- Finish
- Cold rolled, annealed & descaled
- Best at
- The most aggressive mixed acids, wet chlorine and hypochlorite
Hastelloy C276 Coil Specification & Sizes
| Material standard | ASTM B575 |
|---|---|
| Grade | Hastelloy C276 |
| Thickness | 0.1 mm to 6 mm, depending on mill route |
| Width | Mill width, or slit from 10 mm upwards |
| Coil weight & ID | To order — state maximum coil weight and inner diameter |
| Finish | Cold rolled, annealed & descaled; bright annealed on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
Hastelloy C276 Coil: Slitting & Cut-to-Length Specification
C276 coil is bought for a production line, so state thickness, slit width, inner diameter and maximum coil weight with the grade.
| Standard | ASTM B575 |
|---|---|
| Thickness tolerance | Per ASTM B906 |
| Finish | Cold rolled, annealed & descaled · bright annealed on request |
| Temper | Annealed as standard; cold-rolled tempers by agreement |
ID, coil weight, edge, camber and interleaving: see the coil guide.
Hastelloy C276 Coil 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 |
| Vanadium | 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 B575 for UNS N10276.
Hastelloy C276 Coil 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.
Density & Physical Properties
| Property | Value |
|---|---|
| Density | 8.89 g/cm³ |
| Melting range | 1323 – 1371 °C |
| Magnetic | Non-magnetic |
| PREN (approx.) | ≈ 68 |
Hastelloy C276 Equivalent Grades
Six-digit Harmonized System heading (nickel alloy, chapter 75). Your country adds its own digits — confirm with your customs broker. All HS codes.
How to Verify Hastelloy C276 Coil with PMI
Positive material identification with a handheld XRF gun confirms the alloy on the piece itself, in seconds, before it is cut or welded. Hastelloy C276 is most often mixed up with Hastelloy C22 — the table shows which elements tell them apart.
Handheld XRF does not measure carbon or nitrogen; those come from the mill certificate or optical emission (OES) testing. PMI can be arranged on request — state it on your enquiry.
Under technical review for TDS.
| Element | Hastelloy C276 | Hastelloy C22 |
|---|---|---|
| Nickel | As specified | As specified |
| Chromium | As specified | As specified |
| Molybdenum | As specified | As specified |
| Tungsten | As specified | As specified |
| Iron | As specified | As specified |
| Manganese | As specified | As specified |
Hastelloy C276 Coil Applications
Hastelloy C276 is specified when the cheaper grade will not survive the service but a higher alloy would be more than the job needs. These are the jobs our buyers use it for.
Hastelloy C276 Coil vs 625, C22 and 2507
| Grade | Coil standard | PREN (approx.) | Pick it when |
|---|---|---|---|
| Super Duplex 2507 | ASTM A240 | ≈ 42 | Seawater and high-chloride service where strength also matters |
| Inconel 625 | ASTM B443 | ≈ 51 | Seawater, high strength and high temperature in one alloy |
| Hastelloy C22 | ASTM B575 | ≈ 65 | Mixed oxidising and reducing acids, and weld overlays |
| Hastelloy C276 | ASTM B575 | ≈ 68 | The most aggressive mixed acids, wet chlorine and hypochlorite |
PREN = Cr + 3.3 Mo + 16 N, from mid-range chemistry. A screening guide, not a substitute for corrosion data on your medium.
Hastelloy C276 Corrosion Resistance — Element by Element
Each alloying addition has a job. Knowing which one protects against your medium is the quickest way to judge whether C276 fits.
Very high molybdenum handles hydrochloric and sulphuric acid where other alloys fail.
Chromium adds resistance to oxidising acids, wet chlorine and hypochlorite.
Tungsten further improves pitting and crevice resistance.
Very low carbon and silicon let C276 be used as-welded.
How your C276 coil order runs
- 01Enquiry review — we confirm size, standard edition and documents against your MR or drawing.
- 02Heat selection & PMI — the mill certificate is checked against your order; PMI can be arranged depending on product and requirements, as specified in the PO.
- 03Processing — cutting, machining or bevelling to your specification, with heat numbers marked as specified in the PO.
- 04Inspection — your third-party inspector witnesses, or we share photos and test reports.
- 05Packing & dispatch — seaworthy packing from Nhava Sheva (JNPT), Mumbai, FOB or CIF, documents sent before the vessel sails.
Welding & Fabricating Hastelloy C276 Coil
Hastelloy C276 welds by all common arc processes. A few points our buyers ask about:
| Matching filler | ERNiCrMo-4 (AWS A5.14) |
|---|---|
| Over-alloyed filler | ENiCrMo-4 electrode |
| Preheat | Not required; keep interpass temperature low |
| Cutting | Thermal or abrasive cutting; grind off heat-tinted edges before welding |
Follow your approved WPS; this is general guidance. See also C276 fittings and C276 flanges for the matching pipe-system parts.
How to Order Hastelloy C276 Coil: RFQ Checklist
Get an accurate quote the first time. Copy this list into your enquiry:
- Thickness and width
- Coil weight and inner diameter
- Finish and edge (mill or slit)
- Certificate type
- Delivery port and date
Hastelloy C276 coil — questions buyers ask
Is Hastelloy C276 the same as Alloy C-276?
Alloy C-276, UNS N10276, W.Nr 2.4819 are names used for Hastelloy C276 (W.Nr / EN numbers and older UNS variants are the closest designations; their limits can differ slightly, so specify the UNS number and ASTM grade on the order), and coil is ordered to ASTM B575 whichever name is on the enquiry.
Can Hastelloy C276 coil be slit to width?
Yes. Coils can be slit to narrow widths for stamping, tube making and spring work; state width tolerance and coil weight on the enquiry.
What inner diameter do Hastelloy C276 coils have?
508 mm (20") and 610 mm (24") are the common IDs. Tell us your decoiler ID and maximum coil weight and we slit to suit.
Can I order Hastelloy C276 cut-to-length sheets from coil?
Yes. Coil can be levelled and cut to length; state length tolerance and flatness.
Can Hastelloy C276 coil be supplied to NACE MR0175?
Hastelloy C276 (UNS N10276) can be supplied for sour service when the PO specifies NACE MR0175 / ISO 15156; acceptability depends on the material condition, hardness and the environmental limits in that standard, which the purchaser must confirm for the application.
Hastelloy C276 or Super Duplex 2507 — which should I choose?
Hastelloy C276 is chosen for the most aggressive mixed acids, wet chlorine and hypochlorite. Super Duplex 2507 is the step up when you need more pitting resistance or strength. See the comparison table on this page, or ask us with your process conditions.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026