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Hastelloy C276 Sheets & Plates Supplier in Mumbai, India – ASTM B575 N10276
Nicorex Alloys is an ISO 9001 and ISO 14001 certified Hastelloy C276 sheet supplier, importer, and stockist based in Mumbai, India. The material carries UNS designation N10276 and Werkstoff Nr. 2.4819.
Our Hastelloy C276 sheets and plates comply with ASTM B575 / ASME SB-575. These flat products consist of nickel, molybdenum, chromium, and tungsten, built for service in both oxidising and reducing corrosive media. UNS N10276 (Werkstoff Nr. 2.4819) contains approximately 57% nickel, 15-17% molybdenum, 14.5-16.5% chromium, and 3-4.5% tungsten. This alloy has a tensile strength of nearly 790 MPa and a yield strength of approximately 355 MPa. We stock Alloy C276 plate and sheet in hot-rolled, cold-rolled, strip, coil, shim, and foil forms. Sheet thickness ranges from 0.5 to 6.0 mm; plate from 6.0 to 100 mm, with widths of 1000 to 2500 mm and lengths up to 6000 mm. All material ships in the solution-annealed condition (1121°C / 2050°F, rapid quench) with a tensile strength of 790 MPa and a yield strength of 355 MPa. High molybdenum (15-17%) and chromium (14.5-16.5%) content gives Nickel Alloy C276 resistance to pitting, crevice corrosion, and stress-corrosion cracking. It also has a good resistance to sulfuric acid, hydrochloric acid, hydrobromic acid, and phosphoric acid.
These flat products serve oil and gas, chemical and petrochemical, marine and offshore, power generation, and pharmaceutical sectors. Every shipment includes EN 10204/3.1B mill test certificates.
Hastelloy C276 Sheets & Plates Specifications
| Standards: | ASTM B575 / ASME SB-575 |
|---|---|
| Sheet Thickness: | 0.5 to 6.0 mm |
| Plate Thickness: | 6.0 to 100 mm |
| Width: | 1000–2500 mm |
| Length: | 2000–6000 mm |
| Forms Available: | Hot Rolled Plate, Cold Rolled Sheet, Strip, Coil, Shim, Foil |
| Delivery Condition: | Annealed / Solution Annealed |
Chemical Composition of Hastelloy C276 Sheets & Plates
| Element | Nickel (Ni) | Molybdenum (Mo) | Chromium (Cr) | Iron (Fe) | Tungsten (W) | Cobalt (Co) | Manganese (Mn) | Vanadium (V) | Silicon (Si) | Carbon (C) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Composition (%) | Balance (approx. 57) | 15.0 – 17.0 | 14.5 – 16.5 | 4.0 – 7.0 | 3.0 – 4.5 | 2.5 max | 1.0 max | 0.35 max | 0.08 max | 0.01 max | 0.04 max | 0.03 max |
Molybdenum at 15-17% drives pitting resistance in chloride solutions. Chromium at 14.5-16.5% handles oxidising media. The carbon ceiling of 0.01% max prevents carbide precipitation during welding, so Alloy C276 sheets and plates keep full corrosion resistance in the as-welded state without post-weld heat treatment.
Mechanical Properties of Hastelloy C276 Sheet & Plate
| Property | Tensile Strength (min) | Yield Strength, 0.2% Offset (min) | Elongation in 50 mm (min) | Density | Melting Range |
|---|---|---|---|---|---|
| Value | 790 MPa (115 ksi) | 355 MPa (51 ksi) | 40% | 8.89 g/cm³ (0.321 lb/in³) | 1325–1370°C (2415–2500°F) |
Actual values typically exceed these minimums. Hastelloy C276 is not age-hardenable; strength gains come only through cold work. A 40% elongation minimum confirms strong formability for bending, deep drawing, and vessel head forming.
Hastelloy C276 Equivalent Designations & International Standards
| Standard | UNS | Werkstoff Nr. | EN/DIN | GOST | JIS |
|---|---|---|---|---|---|
| Designation | N10276 | 2.4819 | NiMo16Cr15W (2.4819) | ХН65МВУ | NW 0276 |
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Available Forms of Nickel Alloy C276 Sheet & Plate
Nicorex Alloys stocks Hastelloy C276 flat products in various forms to match varied fabrication and cladding needs.
Hastelloy C276 Hot Rolled Plate
Alloy C-276 Cold Rolled Sheet
Nickel Alloy C276 Strip
Hastelloy C276 Coil
Hastelloy Alloy C276 Foil
Hastelloy C276 Shim Sheet
Hastelloy C276 Clad Plate
Corrosion Performance of Hastelloy C276 in Sheet & Plate Applications
Hastelloy C276 corrosion resistance covers environments where most stainless steels and several nickel alloys fail. The alloy withstands wet chlorine gas, ferric and cupric chlorides, hot contaminated mineral acids, and chlorine-contaminated organic solvents. For vessel lining, tank construction, and structural cladding, this profile translates to fewer shutdowns and longer service life.
In sulfuric acid (all concentrations up to 80°C), Alloy C276 plates perform where 316L and Alloy 625 show accelerated attack. FGD scrubber linings rely on C276 plate because flue gas condensates shift between oxidising and reducing conditions. Hastelloy Alloy C-276 tolerates these swings without pitting or intergranular corrosion.
Industries Using Hastelloy C276 Sheets & Plates
- Alloy C276 plates line process vessels, separators, and heat exchanger tubesheets on sour gas platforms. ASTM B575 plate handles chloride-laden splash zones where duplex grades pit within months.
- Reactor vessel linings, acid storage tanks, agitator blades, and process column internals are common C276 sheet and plate applications.
- Hastelloy C276 sheet is specified for seawater-exposed structural members, shipboard heat exchangers, and desalination equipment.
- FGD system linings, boiler parts, and turbine exhaust ducting use C276 plate to handle mixed flue gas condensates in high-sulfur coal-fired plants.
- Sanitary vessel construction, cleanroom panels, and reactor jackets call for C276 sheet. Low carbon content prevents sensitisation during repeated steam-sterilisation cycles.
How to Order Hastelloy C276 Sheet & Plate from Nicorex Alloys
Provide these following details when placing an order:
- Product Form - Hot Rolled (HR) Plate / Cold Rolled (CR) Sheet / Coil
- Thickness - Sheets: 0.5mm–6.0mm / Plates: 6.0mm–100mm (specify in mm or SWG/BWG gauge)
- Width × Length - Standard: 1000mm×2000mm / 1219mm×2438mm / 1500mm×3000mm — custom cut-to-size on request
- Quantity - Specify in kg or MT (indicate if partial plate / full plate / full coil)
- Condition - Hot Rolled Annealed & Pickled (HRAP) / Cold Rolled Annealed (CRA) / Solution Annealed
- Surface Finish - No.1 (HRAP) / No.2B / No.4 / Bright Annealed (BA) / Mill Finish — specify per application
- Edge type - Mill Edge (ME) / Slit Edge (SE) / Sheared Edge / Plasma Cut Edge — specify if machined edges required
- Standard - ASTM B575 / ASME SB-575 (Hastelloy C276 / UNS N10276 / W.Nr. 2.4819)
- Additional Testing - PMI (XRF/OES), UT per ASTM A435, NACE MR0175 compliance, IGC per ASTM A262 Practice C, TPI (Bureau Veritas / SGS / TÜV)
- Packaging - Interleaved with polyethylene film / wooden pallet with steel strapping / ISPM 15 compliant export crating with VCI wrap
- Delivery Destination - Domestic
Frequently Asked Questions
What ASTM Standard Covers Hastelloy C276 Sheet and Plate?
ASTM B575 (ASME equivalent: SB-575) is the standard that covers Hastelloy C276 sheet, plate, and coil. The UNS designation is N10276.
Can Hastelloy C276 Plates Be Cut to Custom Sizes?
Yes. Nicorex Alloys supplies C276 plates in custom dimensions. CNC plasma, waterjet, and laser cutting are available depending on thickness.
What is the Maximum Service Temperature for Hastelloy C276 Sheet and Plate?
What Filler Metal Should Be Used for Welding Hastelloy C276 Plates?
The matching filler is ERNiCrMo-4 (AWS A5.14) for GTAW/GMAW, and ENiCrMo-4 (AWS A5.11) for SMAW. No post-weld heat treatment is required.