We are Riddhi Siddhi Impex, a Mumbai-based supplier and exporter of Hastelloy C276 Coils, established in 2002. We hold ready stock of nickel-molybdenum-chromium alloy coils to ASTM B575 / ASME SB-575 from 0.03 mm to 5 mm, custom-slit to ±0.1 mm. Our ISO 9001, ISO 14001, and ISO 45001-certified company has a supply capacity of 400 to 500 tons monthly, with EN 10204 Type 3.1 / 3.2 mill test certificates available on request.
Hastelloy C276 coils are flat-rolled nickel-molybdenum-chromium alloy products containing tungsten, making them one of the most versatile corrosion-resistant materials in industrial service. Nickel and molybdenum resist reducing acids, chromium improves resistance to oxidising media, and tungsten enhances protection against localised chloride corrosion. The very low carbon content of Alloy C-276 Coils limits carbide precipitation, so welded assemblies hold their corrosion resistance without further heat treatment.
As a reliable Hastelloy C276 coil supplier, we stock these coils rather than melt them, sourcing parent coils from reputed primary mills and slitting to width in-house. UNS N10276 coils ship in the annealed mill condition, in BA, and 2B finish.
We provide ASTM B575 Hastelloy C276 Coils in the annealed condition, across several finishes and edges, slit to width from ready stock in hot rolled and cold rolled forms.
| Parameter | Details |
|---|---|
| Standard | ASTM B575 / ASME SB-575 |
| Thickness | 0.03 mm to 5 mm |
| Width | 3 mm to 2000 mm |
| Width Tolerance | ±0.1 mm |
| Coil ID | 150 mm to 610 mm |
| Coil OD | Up to 1800 mm |
| Condition | Annealed (standard mill) |
| Surface Finish | BA (Bright Annealed), 2B |
| Supply Form | Hot Rolled (HR), Cold Rolled (CR) |
| Edge | Slit edge, Mill edge, Deburred edge, Round edge |
Molybdenum at 15 to 17% is the defining element, driving the resistance of these coils to reducing acids and chloride pitting. Chromium adds oxidising-side protection, and the tight 0.01% carbon limit keeps welds sound, per the ASTM B575 composition below.
| Element | Composition (% by weight) |
|---|---|
| Nickel (Ni) | Balance (approx. 57) |
| Molybdenum (Mo) | 15.0 to 17.0 |
| Chromium (Cr) | 14.5 to 16.5 |
| Iron (Fe) | 4.0 to 7.0 |
| Tungsten (W) | 3.0 to 4.5 |
| Cobalt (Co) | 2.5 max |
| Manganese (Mn) | 1.0 max |
| Vanadium (V) | 0.35 max |
| Silicon (Si) | 0.08 max |
| Phosphorus (P) | 0.04 max |
| Sulphur (S) | 0.03 max |
| Carbon (C) | 0.01 max |
Annealed Alloy C-276 Coils reach a minimum tensile strength of 690 MPa with 40% elongation, so they form, roll, and deep-draw without cracking. Coils ship in the annealed mill condition only, as ASME SB-575 requires.
| Property | Value (Annealed) |
|---|---|
|
Tensile Strength, minimum
|
690 MPa (100 ksi) |
|
Yield Strength (0.2% offset), minimum
|
283 MPa (41 ksi) |
|
Elongation in 50 mm, minimum
|
40% |
International buyers can cross-reference UNS N10276 Coils against their regional standard below. Our coils match every designation, and the welding filler is ERNiCrMo-4.
| Country / Standard | Designation |
|---|---|
| Europe (EN) | NiMo16Cr15W |
| Germany (W.Nr) | 2.4819 |
| Japan (JIS) | NW0276 |
| China (GB) | NS3304 |
These 5 industries utilise most of the Nickel Alloy C-276 Coils we supply. Buyers select the grade for resistance to mixed acids, immunity to chloride stress corrosion cracking, and reliable as-welded performance.
Chemical plants form Alloy C276 Coils into reactors, heat exchangers, and columns that handle mixed acids, chlorides, and solvents. The nickel-molybdenum base maintains in reducing service where austenitic stainless grades pit, which is why engineers replace 316L with C-276 in aggressive acid duty.
Flue gas desulphurisation plants press these coils into scrubbers, stack liners, and duct components exposed to hot acidic condensate. The tungsten and molybdenum content resists chloride attack in wet acid gas, providing a longer service life than coated carbon steel in these environments.
Pharmaceutical makers choose Hastelloy C276 Coils for reaction vessels, transfer lines, and high-purity process equipment. The grade keeps product streams free of metal contamination and withstands the acids and halides used in synthesis.
Sour-service operators specify C276 coils for wellhead parts, separators, and offshore components exposed to hydrogen sulphide and chloride brines. The alloy resists sulphide stress cracking and pitting, keeping welded joints sound in hot corrosive service.
Mills use Alloy C-276 Coils in bleach washers, digesters, and chlorine dioxide generators. Bleaching chemistry is strongly oxidising and chloride-rich, and the grade resists the pitting that attacks lesser stainless grades.
Orders leave from our Mumbai and Taloja warehouses in wooden cases or on pallets.
| Parameter | Details |
|---|---|
| Packaging | Wooden cases, pallet packing |
| Incoterms | FOB, CIF, CFR, EXW Mumbai |
| Dispatch Points | Mumbai and Taloja warehouses |
| Standard Lead Time | 4 to 5 days |
| Urgent Dispatch | 2 to 3 days |
| Payment Terms | Advance, credit, LC |
| Certification | EN 10204 Type 3.1 / 3.2 on request |
Hastelloy C276 Coils price in India is around ₹2800 to ₹4500 per kg, roughly $30 to $47 per kg for international buyers. The rate tracks nickel and molybdenum benchmarks, and thickness, width, finish, and volume all move the figure. Volume discounts apply, so send us your requirement for the best rate.
We supply Hastelloy C276 coils in thicknesses from 0.03 mm to 5 mm, slit to width with a tolerance of ±0.1 mm.
Hastelloy C276 coils are covered by ASTM B575 / ASME SB-575, the specification covering low-carbon nickel-molybdenum-chromium alloy plate, sheet, and strip.
Yes, we slit Hastelloy C276 coils to widths from 3 mm to 2000 mm (post-slitting) with a tolerance of ±0.1 mm, cut to your exact specification. Precision slitting from ready stock is one of our core capabilities as a stockist.
The price of Hastelloy C-276 coils is around ₹2800 to ₹4500 per kg, roughly $30 to $47 per kg for export buyers. Thickness, width, finish, quantity, and prevailing nickel rates all shift the figure, so contact us for a firm quote.
You can source Hastelloy C276 coils in India from us at Riddhi Siddhi Impex. Our Mumbai warehouse holds C276 coil stock for prompt dispatch. As a supplier, stockist, and exporter, we serve buyers across India and overseas, with quotes within 24 hours.
