Hastelloy C276 Alloy Specifications
Hastelloy C276 (UNS N10276) is a nickel-chromium-molybdenum alloy renowned for its excellent corrosion resistance, particularly against pitting, crevice corrosion, and chloride stress corrosion cracking, making it ideal for harsh chemical, petrochemical, and waste treatment environments. Its key properties include high strength, good weldability, and resistance to a variety of oxidizing and reducing acids, typically specified according to ASTM B575 and ASME SB-575 standards.
What are the uses of Hastelloy C276?
Hastelloy C276 seamless steel pipes have wide applications in the oil and gas industry, especially in harsh environments and corrosive fluid environments. These pipes are commonly used on offshore platforms, in oil refineries, and in petrochemical plants.
Hastelloy C276 Specifications
Plate, Sheet & Strip: ASTM B575, ASME SB575
Rod & Bar: ASTM B574, ASME SB574
Seamless Pipe & Tube: ASTM B622, ASME SB622
Fittings: ASTM B366, ASME SB366
Forgings: ASTM B564, ASME SB564
|
Hastelloy C276 Chemical Composition |
|
| Element | Percent Composition |
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 15% – 17% |
| Chromium (Cr) | 14.5% – 16.5% |
| Iron (Fe) | 4% – 7% |
| Tungsten (W) | 3% – 4.5% |
| Cobalt (Co) | 2.5% |
| Manganese (Mn) | 1% |
| Silicon (Si) | 0.08% |
| Phosphorus (P) | ≤0.04% |
| Sulfur (S) | ≤0.03% |
| Carbon (C) | ≤0.010% |
Hastelloy C276 Physical Properties
|
|
||||
| Temperature | Thermal Conductivity | Coeff. of Expansiona | Electrical Resistivity | Young's Modulus |
|---|---|---|---|---|
| °F | Btu•in./ft2•h°F | 10-6 in/in•°F | ohm•cmil/ft | 103 ksi |
| -270 | 50 | - | - | - |
| -100 | 60 | - | 0 | - |
| 0 | 65 | - | - | - |
| 77 | - | - | 739.2 | 29.8 |
| 100 | 71 | - | - | - |
| 200 | 77 | 6.8 | 734.8 | 29.5 |
| 400 | 90 | 7.0 | 749.3 | 28.6 |
| 600 | 104 | 7.2 | 757.7 | 27.8 |
| 800 | 117 | 7.4 | 760.3 | 26.7 |
| 1000 | 132 | 7.5 | 772.5 | 25.7 |
| 1200 | 145 | 7.7 | 781.5 | 24.8 |
| 1400 | 159 | 8.1 | 773.9 | 23.5 |
| 1600 | 173 | 8.5 | 768.3 | 22.0 |
| 1800 | 185 | - | 766.2 | 20.6 |
| 2000 | 195 | - | 757.7 | 19.1 |
| °C | W/m•°C | µm/m•°C | µΩ•cm | GPa |
| -168 | 7.2 | - | - | - |
| -73 | 8.7 | - | - | - |
| 20 | 69.8 | - | - | - |
| 25 | - | - | 122.9 | 205 |
| 100 | 11.2 | 12.2 | 123.7 | 203 |
| 200 | 12.8 | 12.4 | 124.5 | 198 |
| 300 | 14.7 | 12.9 | 125.7 | 192 |
| 400 | 116.4 | 13.2 | 126.0 | 186 |
| 500 | 18.2 | 13.5 | 127.7 | 180 |
| 600 | 20.0 | 13.6 | 129.9 | 178 |
| 700 | 21.9 | 14.1 | 129.7 | 167 |
| 800 | 23.7 | 14.8 | 128.2 | 159 |
| 900 | 25.4 | - | 127.4 | 150 |
| 1000 | 27.0 | - | 127.1 | 141 |
| 1100 | 28.3 | - | - | - |
Application Areas
Chemical Processing: Heat exchangers, pressure vessels, pipelines, pumps, and valves for corrosive media.
Pollution Control: Flue Gas Desulfurization (FGD) systems, chimney linings, and fans.
Oil & Gas: Acid gas (hydrogen sulfide) treatment.
Pulp & Paper: Distillers and bleaching plants.
Waste Treatment: Toxic waste incinerators.
Standards and Grades
UNS: N10276.
Material Number: 2.4819.
ASTM/ASME: Plate: B575, SB-575; Welded Pipe: B619; Plate/Sheet: B333.
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.