During a plant audit, engineers discovered catastrophic pitting from hydrochloric acid that nearly caused a shutdown. Only a last-minute switch to Hastelloy C276 Round Bars gave the process line a second life. These superalloy bars now underpin demanding operations for chemical, oil & gas, marine, pharmaceutical, and power leaders, driving safety, uptime, and peace of mind. For procurement specialists, engineers, fabricators, and OEMs, Aurico Alloys LLP Hastelloy C276 round bars are trusted for true performance where lesser alloys fall short.
Table of Contents:
Hastelloy C276 (UNS N10276, ASTM B574, W.Nr. 2.4819) is a nickel-molybdenum-chromium alloy containing tungsten, noted for resisting the widest range of corrosive and oxidizing environments even wet chlorine, ferric/chloride salts, hypochlorite, acetic, and formic acids. Unlike ordinary stainless or high-nickel grades, it delivers true immunity against pitting, crevice corrosion, and stress corrosion cracking at up to 2200°F key for reliability in chemical reactors, oilfield injection systems, marine scrubbers, and pharma tanks.
Aurico Alloys LLP offers Hastelloy C276 Round Bars with full export certification, ready stock from 3mm to 600mm diameter and lengths as required, in bright, ground, or custom-machined finish. All bars meet ASTM, DIN, EN, and NACE MR0175/ISO 15156 for urgent project supply, precision fabrication, and hardware store requirements making this alloy the backbone of next-gen critical equipment.
Dive into the following expert reference: full technical standards, chemical/mechanical breakdown, key benefit analysis, and common applications SEO-optimized to inform buyers, engineers, platforms, and procurement professionals worldwide.
High-quality Hastelloy C276 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Hastelloy C276 (UNS N10276, W.Nr. 2.4819) |
| Standards | ASTM B574, ASME SB574, DIN 17744, W.Nr. 2.4819, NACE MR0175/ISO 15156 |
| Diameter Range | 3mm – 600mm (custom as required) |
| Length | 100mm – 6000mm (cut-to-length) |
| Finish | Bright, ground, black, rough turned, polished, custom-machined |
| Delivery | Stock or custom, full MTC, export packing, urgent global supply |
| Price | INR 3,500 – 5,000 per kg. Indicative USD 41 – 59 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N10276 |
| Werkstoff / EN number | 2.4819 |
| EN designation | NiMo16Cr15W |
| Density | 8.89 g/cm3 |
| Melting range | 1323-1371 °C |
| Electrical resistivity | 1.23 µΩ·m |
| Thermal conductivity (50 °C) | 10.5 W/m·°C |
| Coefficient of expansion (24-100 °C) | 11.2 µm/m·°C |
| Magnetic permeability (at 200 oersted / 15.9 kA/m) | 1.0002 |
| Specific heat | 427 J/kg·°C |
| Dynamic modulus of elasticity | 205 GPa |
| Poisson's ratio | 0.31 |
| Rod and bar specification | ASTM B574 |
Identifiers and physical constants for Hastelloy C-276. A dash means no such designation is published for this grade.
Stock & Product Availability
Hastelloy C276 round bars from Aurico Alloys LLP—delivered as precision-ground, rough-turned, or black bar for chemical, marine, pharma, energy, and hardware supplies, always backed by full ASTM, EN, and NACE compliant documentation.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance |
| Chromium (Cr) | 14.5 | 16.5 |
| Molybdenum (Mo) | 15.0 | 17.0 |
| Iron (Fe) | 4.0 | 7.0 |
| Tungsten (W) | 3.0 | 4.5 |
| Cobalt (Co) | — | 2.5 |
| Manganese (Mn) | — | 1.0 |
| Vanadium (V) | — | 0.35 |
| Carbon (C) | — | 0.010 |
| Silicon (Si) | — | 0.08 |
| Phosphorus (P) | — | 0.04 |
| Sulfur (S) | — | 0.03 |
Composition limits for Hastelloy C-276. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (MPa) | 790 |
| Yield Strength (MPa, 0.2%) | 355 |
| Elongation (%) | 40 |
| Impact Energy (J) | high – excellent toughness |
| Hardness (HB) | ≤241 |
| Max Service Temp (°C) | Up to 1040–1200 (depending on environment) |
Applications & Benefits
Why this grade
Hastelloy C276 carries roughly 16% chromium, 16% molybdenum and 4% tungsten, and it is the general-purpose member of the C family: it holds up in oxidising and reducing media alike, in wet chlorine, hypochlorite, seawater and flue-gas desulphurisation. It is the default C grade — move to C22 or C2000 only where a specific environment defeats it.
- Chemical: Reactors, acid handling, FGD, piping, heat exchangers, evaporators, mixer shafts.
- Marine: Piping, scrubber parts, seawater heat exchangers, offshore plant.
- Oil & Gas: Downhole lines, injection valves, well-sour service, hydrocracker vessels.
- Pharma: Mixing tanks, agitation rods, reactor baffles, clean-room applications.
- Power: Turbines, boiler tubes, pressure vessel cladding, superheaters, FGD.
- Fabrication/Supply: High-purity parts, OEM, rapid spares, urgent industrial repairs.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Hastelloy C276 Round Bars from Aurico Alloys LLP bring benchmark corrosion performance, mechanical durability, and lifecycle savings to chemical, oil & gas, marine, pharma, power, and hardware supply experts backed by ASTM, UNS, EN, and NACE standards, rapid supply, and full technical assurance. Are your critical assets fortified with the industry’s most advanced and reliable corrosion-resistant bar?