Hastelloy® C276 (UNS N10276 / W.Nr. 2.4819) is a high-performance nickel-molybdenum-chromium alloy with added tungsten that offers excellent corrosion resistance in a wide range of aggressive environments. It is specifically designed to resist pitting, crevice corrosion, and stress corrosion cracking in both oxidizing and reducing media. Unlike many other alloys, Hastelloy C276 does not form harmful grain-boundary precipitates in the weld heat-affected zone, allowing it to be used in the as-welded condition. Pacific Stainless Alloys, based in Mumbai, India, supplies and exports top-quality Hastelloy C276 products in compliance with global standards.
Due to its superior corrosion resistance, Hastelloy C276 is commonly used in industries that handle harsh chemical processes:
| Product Form | Standards |
| Sheet / Plate | ASTM B575 / ASME SB575 |
| Pipe | ASTM B622 / ASME SB622, B619 / ASME SB619 |
| Tube | ASTM B622 / ASME SB622, B626 / ASME SB626 |
| Bar / Rod | ASTM B574 / ASME SB574 |
| Fittings | ASTM B366 / ASME SB366 |
| Forgings | ASTM B564 / ASME SB564 |
| Temperature | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) |
| Room Temp | 760 | 283 | 50 |
| Element | Composition (%) |
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 15.0 – 17.0 |
| Chromium (Cr) | 14.5 – 16.5 |
| Iron (Fe) | 4.0 – 7.0 |
| Tungsten (W) | 3.0 – 4.5 |
| Cobalt (Co) | Max 2.5 |
| Manganese (Mn) | Max 1.0 |
| Silicon (Si) | Max 0.08 |
| Carbon (C) | Max 0.01 |
| Phosphorus (P) | Max 0.04 |
| Sulfur (S) | Max 0.03 |
| Vanadium (V) | Trace |
Sheet / Plate | ASME SB-575 |
Round Bar | ASME SB-574 |
Pipe | ASME SB-622 / ASME SB-619 |
Tube | ASME SB-622 / ASME SB-626 |
Fittings | ASME SB-366 |
Forgings | ASME SB-564 |
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