Hastelloy C-276 Alloy Chemical Composition
Hastelloy C-276 Alloy Chemical Composition
Hastelloy C-276 is a nickel-based superalloy renowned for its excellent corrosion resistance. It is primarily composed of nickel (balance), chromium (14.5-16.5%), molybdenum (15-17%), and iron (4-7%), with significant amounts of tungsten (3-4.5%), as well as carbon (0.01%), silicon (0.08%), sulfur (0.03%), phosphorus (0.04%), manganese (1.0%), cobalt (2.5%), and vanadium (0.35%), making it ideal for use in harsh reducing and oxidizing environments, particularly resistant to chloride and acid corrosion.
What is the maximum operating temperature of Hastelloy C276?
Hastelloy C-276 is a nickel-molybdenum-chromium alloy with excellent corrosion resistance. This alloy is resistant to pitting corrosion, crevice corrosion, and stress corrosion cracking. Hastelloy C-276 can only be hardened through cold working. Its operating temperature range is from low temperatures to 750°F (400°C).
Hastelloy C276 Chemical Composition
| Element | Content (%) |
| Nickel, Ni | 57 |
| Molybdenum, Mo | 15-17 |
| Chromium, Cr | 14.5-16.5 |
| Iron, Fe | 4-7 |
| Tungsten, W | 3-4.50 |
| Cobalt, Co | 2.50 |
| Manganese, Mn | 1 |
| Vanadium, V | 0.35 |
| Silicon, Si | 0.080 |
| Phosphorous, P | 0.025 |
| Carbon, C | 0.010 |
| Sulfur, S | 0.010 |
Hastelloy C276 Physical Properties
| Properties | Metric | Imperial |
| Density | 8.89 g/cm³ | 0.321 lb/in³ |
| Melting point | 1371°C | 2500°F |
Hastelloy C276 Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength (thickness 4.80-25.4 mm, 538°C/thickness 0.189-1.00 in, 1000°F) | 601.2 MPa | 87200 psi |
| Yield strength (0.2% offset, thickness 2.40 mm, 427°C/thickness 0.0945 in, 801°F) | 204.8 MPa | 29700 psi |
| Elastic modulus (RT) | 205 GPa | 29700 ksi |
| Elongation at break (in 50.8 mm, thickness 1.60-4.70 mm, 204°C/thickness 0.0630-0.185 in, 399°F) | 56% | 56% |
| Hardness, Rockwell B (plate) | 87 | 87 |
Hastelloy C276 Thermal Properties
| Properties | Metric | Imperial |
| Thermal expansion co-efficient (24-93°C/75.2-199°F) | 11.2 µm/m°C | 6.22 µin/in°F |
| Thermal conductivity (-168 °C) | 7.20 W/mK | 50.0 BTU in/hr.ft².°F |
Equivalent materials to Hastelloy C276
| ASTM B366 | ASTM B574 | ASTM B622 | ASTM F467 | DIN 2.4819 |
| ASTM B575 | ASTM B626 | ASTM B619 | ASTM F468 |
Applications: Due to its superior performance, Hastelloy C276 is widely used in numerous industries, including:
Chemical Processing: Widely used for handling corrosive chemicals and acidic solutions.
Petrochemicals: This alloy is used in reaction vessels, heat exchangers, and other equipment exposed to corrosive media.
Oil and Gas: Hastelloy C276 ensures reliable performance in offshore drilling environments and acidic gas wells.
Pollution Control: Plays a crucial role in the construction of flue gas desulfurization systems and other pollution control equipment.
Pharmaceuticals and Pulp & Paper: Its excellent corrosion resistance makes it valuable in pharmaceutical production and pulp and paper processing.
Gnee Steel is a professional manufacturer of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ru@gneesteelgroup.com for a quote.