Hastelloy C276 UNS N10276 Nickel Alloy Forged Round Bar for Extreme Corrosion-Resistant Marine and Chemical Applications, Conforming to ASTM B574 Standard
Hastelloy C276 UNS N10276 Nickel Alloy Forged Round Bar
Hastelloy C276 (UNS N10276) conforming to ASTM B574 is an extremely corrosion-resistant nickel-molybdenum-chromium alloy round bar, suitable for strong acids, chlorides, and marine environments, and is considered a premium corrosion-resistant material for chemical and offshore engineering applications.
Key Features
- Excellent resistance to oxidizing and reducing environments.
- Outstanding resistance to pitting and crevice corrosion.
- Strong resistance to stress corrosion cracking (SCC) .
- Excellent stability in wet chlorine and hypochlorite.
- Resistant to mixed acids (H₂SO₄, HCl, H₃PO₄, HNO₃) .
- Excellent weldability (no post-weld heat treatment required) .
- Good high-temperature stability (up to ~1000°C short term) .
Typical Applications
- Flue Gas Desulfurization (FGD): Desulfurization towers, spray pipes, mist eliminators, wastewater heat exchangers.
- Chemical & Chlor-Alkali: Reactors, heat exchangers, pickling tanks, electrolytic cells, mixed acid evaporators.
- Pharma & Fluorochemicals: Anti-corrosion high-purity equipment, extraction towers.
- Marine Seawater: Desalination, brine pipelines, offshore platform liners.
- Paper & Metallurgy: Bleaching units, pickling lines, high-temp furnace linings.
- Special Equipment: Corrosion-resistant valves, flanges, bellows, pressure vessel internals.
Chemical Composition (wt%)
| Element | Ni | Cr | Fe | W | Mo | P | S | Co | C | Mn | Si |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | ≥57.0 | 14.5 – 16.5 | 4.0 – 7.0 | 3.0 – 4.5 | 15.0 – 17.0 | ≤ 0.04 | ≤ 0.03 | ≤ 2.5 | ≤ 0.01 | ≤ 1.0 | ≤ 0.08 |
Mechanical Properties (Solution Annealed + Water Quenched)
| Property | Value |
|---|---|
| Tensile Strength (Rm) | ≥ 690 MPa (100 ksi) |
| Yield Strength (Rp0.2) | ≥ 283 MPa (41 ksi) |
| Elongation (A5) | ≥ 40% |
| Density | 8.89 g/cm³ |
| Hardness (HBW) | ≤210(HRB≤100) |
| Max Service Temperature | 677°C (1250°F) |
Quality Assurance
Every DINGSCO Hastelloy C276 (UNS N10276 / W.Nr. 2.4819) nickel alloy forged bar passes stringent quality inspections: ultrasonic testing complying with ASTM A388, mechanical performance testing per ASTM E8/E21, OES chemical composition analysis and dimensional inspection. We guarantee full traceability from ingot melting through final shipment, with full sets of test documentation provided on demand.
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