About Alloy
Hastelloy C276 is a nickel-molybdenum-chromium alloy renowned for its exceptional corrosion resistance in a wide range of aggressive environments. This alloy offers high resistance to both oxidizing and reducing media, making it suitable for use in various chemical processing applications, as well as in industries where exposure to corrosive substances is a concern.
The key elements in Hastelloy C276, including nickel, molybdenum, and chromium, contribute to its outstanding corrosion resistance properties. The high molybdenum and chromium content provides resistance to a wide range of corrosive substances, including oxidizing and reducing acids, as well as chloride-containing media. Additionally, the low carbon content in Hastelloy C276 minimizes carbide precipitation during welding, ensuring the material’s corrosion resistance in the welded condition.
Hastelloy C276 is widely used in applications involving sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, and other aggressive chemicals. It is also suitable for use in environments containing oxidizing salts and seawater. The alloy’s resistance to stress corrosion cracking, pitting, and crevice corrosion makes it a preferred material for critical components in various industries.
The alloy’s excellent fabricability allows for easy forming, welding, and machining, further enhancing its versatility in various industrial applications. Its reliability and resistance to corrosion make it a preferred choice for critical components in aggressive chemical environments, including reactors, heat exchangers, and piping systems.
In summary, Hastelloy C276 is a high-performance alloy known for its exceptional resistance to a wide range of corrosive environments, making it well-suited for applications in chemical processing, pollution control, pulp and paper production, and other industries where exposure to aggressive chemical conditions is a concern. Its versatility, reliability, and resistance to corrosion make it a valuable material for critical components in
Product Form
UNS N10276
AMS 5750 Bar, Forgings
WS 2.4819
ASTM B574, ASME SB574 Bar Products
ASTM B575, ASME SB575 Plate, Sheet and Strip
ASTM B619, ASME SB619 Welded Pipe
ASTM B622, ASME SB622 Seamless Tubing
ASTM B626, ASME SB 626 Welded Tubing
ASTM B366, ASME SB 366 Wrought Corrosion Resistant Fittings CR HC 276, Wrought ANSI Pressure Fitting-WPHC276
ASTM B564 Forgings
AWS A 5.14, ASME SA 5.14 Welding Wire (ER NiCrMo-4)
AWS A 5.11, ASME SA 5.11 Covered Electrodes (E NiCRMo-4)
NACE MR-01-75
Inconel C276 (trademark)
Chemical Composition
| Composition | Ni | Cr | Fe | Mo | W | Co | C | Mn | Si | S | V | P | Ti | |
| Content (%) | Min. | Bal. | 20 | 2 | 2.5 | |||||||||
| Max. | 22.5 | 6 | 3.5 | 2.5 | 0.015 | 0.5 | 0.08 | 0.02 | 0.35 | 0.02 | ||||
Property
| Form | Tensile (Ksi) | 0.2% Yield (Ksi) | Elongation % |
| Bar | 110 | 52.6 | 62 |
| Plate | 107.4 | 50.3 | 67 |
| Sheet | 115.5 | 54.6 | 60 |
| Tube/ Pipe | 105.4 | 45.4 | 70 |
Application
Pollution control stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans and fan housings
Flue gas desulfurization systems
Chemical processing components like heat exchangers, reaction vessels, evaporators, and transfer piping
Sour gas wells
Pulp and paper production
Waste treatment
Pharmaceutical and food processing equipment
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