Hastelloy C276 is a high-performance nickel-based alloy known for its exceptional corrosion resistance, high-temperature strength, and excellent weldability, making it ideal for demanding applications in harsh environments.
Hastelloy C276
High Quality Hastelloy C276 Alloy
Hastelloy C276 is a nickel-based alloy with excellent corrosion resistance and high-temperature performance. It mainly consists of nickel, chromium, molybdenum, and small amounts of iron and carbon, making it suitable for applications in extreme environments.
SSM can provide Hastelloy C276 through pipes, fittings, flanges, fasteners, plates, bars, etc.
Features of Hastelloy C276
Hastelloy C276 is a high-performance nickel-based alloy with the following characteristics:
- Excellent Corrosion Resistance: It can withstand a variety of corrosive media, including strong acids (such as sulfuric and hydrochloric acid) and chlorides.
- Good High-Temperature Performance: It maintains good mechanical properties in high-temperature environments, making it suitable for extreme temperatures.
- Good Weldability: With low carbon content and excellent welding performance, it does not become brittle after welding.
- High Strength: Even at elevated temperatures, Hastelloy C276 retains high strength and toughness.
- Oxidation Resistance: In high-temperature oxidation environments, it can form a protective oxide layer that further enhances its corrosion resistance.
Application of Hastelloy C276
Typical applications of Hastelloy C276 include:
- Chemical Processing Industry: Used in reactors, heat exchangers, and piping systems, capable of resisting solid acids and corrosive media.
- Oil and Gas Industry: Used as a corrosion-resistant material in offshore platforms and downstream refining processes.
- Power Industry: Used in flue gas desulfurization equipment in coal and gas-fired power plants.
- Aerospace: Used in engine components exposed to high temperatures and corrosive environments.
- Pharmaceutical and Food Processing: Utilized in equipment that requires high cleanliness and corrosion resistance.
- Waste Treatment: Employed in systems that handle corrosive waste to ensure the durability of equipment.
If you have the above application needs, please get in touch with us to purchase Hastelloy C276 products.
One-Stop Hastelloy C276 Provider for All Your Needs
SSM has significant product advantages in manufacturing Hastelloy C276, Whether it’s quality or price, we will meet your needs.
More Information About Hastelloy C276
Hastelloy C276 Chemical Compostion
| Element | Nickel (Ni) | Chromium (Cr) | Molybdenum (Mo) | Iron (Fe) | Tungsten (W) | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Vanadium (V) |
| Composition Range % | Balance | 14.5-16.5 | 15.0-17.0 | 4.0 -7.0 | 3.0-4.5 | ≤0.01 | ≤0.08 | ≤1.0 | ≤0.04 | ≤0.03 | ≤0.35 |
Hastelloy C276 Equivalent Material
| UNS | EN | WERKSTOFF NR. (WNR) | AFNOR | JIS | BS | GOST |
| N10276 | NiMo16Cr15W | 2.4819 | – | NW 0276 | – | ХН65МВУ |
Hastelloy C276 Mechanical Properties
| Alloy | N10276 |
| Tensile Strength, min, psi (MPa) | 100 000 (690) |
| Yield Strength (0.2 % Offset), min, psi (MPa) | 41 000 (283) |
| Elongation in 2 in. (50.8 mm) or 4D min, % | 40 |
| Rockwell Hardness, max | 100 HRB |
| Density lb/in.3 (g/cm3) | 0.321 (8.87) |
Hastelloy C276 Specifications
HASTELLOY® C-276 alloy (N10276, W10276)
| Sheet, Plate & Strip | SB 575/B 575 |
| Billet, Rod & Bar | SB 574/B 574 |
| Coated Electrodes | SFA 5.11/ A 5.11 (ENiCrMo-4)DIN 2.4887(EL-NiMo15Cr15W) |
| Bare Welding Rods & Wire | SFA 5.14/ A 5.14 (ERNiCrMo-4)DIN 2.4886(SG-NiMo16Cr16W) |
| Seamless Pipe & Tube | SB 622/B 622 |
| Welded Pipe & Tube | SB 619/B 619 |
| Fittings | SB 366/B 366 |
| Forgings | SB 564/B 564 |
| DIN | 17744 No. 2.4819 NiMo16Cr15W |
| TÜV | Werkstoffblatt 400Kennblatt 320Kennblatt 319 |
| Others | NACE MR0175 ISO 15156 |
Hastelloy C276 Compatibility Chart
Notes:
- Concentration and Temperature: The compatibility of Hastelloy C276 can vary with the concentration of the chemicals and the operating temperature. It’s crucial to consider these factors in applications.
- Mechanical Stress: While Hastelloy C276 is highly resistant to many chemicals, mechanical stress and environmental factors (like temperature and pressure) can affect its performance.
- Testing: Always perform compatibility tests in actual operating conditions when feasible.
Refer to detailed chemical resistance charts or consult with material engineers to ensure optimal performance for specific applications.
Welding Hastelloy C276
C276 is the first forged nickel-chromium-molybdenum alloy that mitigates welding issues with extremely low carbon and silicon content, which provides the following advantages during welding:
- Low Carbon Content: Reduces the risk of intergranular corrosion during welding and avoids brittleness caused by carbon precipitation.
- Low Silicon Content: Decreases welding defects such as cracks and porosity in the weld joint.
Hastelloy C276 strongly recommends using pulsed GTAW technology in self-fusion welding and when using filler metal. Pulsed current provides low heat input and faster cooling rates, helping to optimize the distribution of elements in the matrix, suppress micro-segregation, and avoid the formation of TCP phases. Additionally, pulsed current refines the microstructure, enhancing the toughness and corrosion resistance of the weld joint.
When using filler metal, the selection of filler metal is very important. It is recommended to choose filler metals with a molybdenum content higher than that of the base material, such as ERNiCrMo-4 (approximately 17% Mo) and ERNiCrMo-10 (approximately 13% Mo). The high Mo content can compensate for any potential defects in the weld metal, ensuring that there are no corrosion issues when used in seawater (naval/marine applications).
Relevant Hastelloy Grades
- Hastelloy C22
- Hastelloy B2
- Hastelloy B3
- Hastelloy X
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