UNS N10276 N06022 Gasket Ball Nickel Alloy Concave-Convex Conical Combined Gasket
Nickel alloy spherical washers have the following advantages in practical applications:
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Excellent corrosion resistance: Nickel alloys have excellent corrosion resistance, especially in environments where they are resistant to oxidizing and reducing acids, chloride ion stress corrosion cracking, and ammonia. This makes nickel alloy spherical washers ideal for chemical industries, marine engineering and other corrosive environments.
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High temperature resistance: Nickel alloy can withstand high temperature environments, maintain strength and stability at high temperatures, and is suitable for applications under high temperature conditions.
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Good mechanical properties: Nickel alloy has high strength and toughness, can withstand large mechanical loads and vibrations, and is suitable for occasions requiring high mechanical properties.
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Adaptability: The design of the spherical gasket allows it to adapt to irregular surfaces, providing even pressure distribution, allowing for certain displacement and deviation while maintaining a seal.
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Easy to install and remove: The structure of the spherical gasket makes it easy to install and remove, especially in equipment that requires frequent maintenance or replacement.
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Reduce stress concentration: The rounded design of spherical washers helps disperse pressure and reduce stress concentration on bolts and joint surfaces, thereby extending the service life of the connection.
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Suitable for a variety of media: Nickel alloy spherical washers are suitable for a variety of media, including gases, liquids and chemicals, making them very practical in a variety of industrial applications.
In summary, nickel alloy spherical washers have been widely used in extreme working conditions in chemical industry, petroleum, marine engineering, aerospace and other fields due to their corrosion resistance, high temperature resistance, and excellent mechanical properties.
Grade | Chemical Composition(%) |
HASTELLOY C-276 | Ni | Co | Cr | Mo | W | P | Fe |
Remainder | 2.5max | 14.5-16.5 | 15.0-17.0 | 3.0-4.5 | 0.04max | 4.0-7.0 |
Si | Mn | C | V | S | | |
0.08max | 1.0max | 0.01max | 0.35max | 0.03max | | |
HASTELLOY C-22 | Ni | Mo | Cr | Fe | Co | P | W |
Remainder | 12.5-14.5 | 20.0-22.5 | 2.0-6.0 | 2.5max | 0.02max | 2.5-3.5 |
V | C | Mn | Si | S | | |
0.35max | 0.015max | 0.5max | 0.08max | 0.02max | | |
Grade | UNS | DENSITY | DIN | GB | Tensile Strength (Mpa min) | Yield Strength (Mpa min) | Reduction of Area, min (%) | Elongation min(%) | Hardness (HRC) |
HASTELLOY C-276 | UNS N10276 | 8.87g/cm³ | W.NR.2.4819 | NS3304 | 690 MPa min | 283 MPa min | …. | 40% min | HRC 35 max |
HASTELLOY C-22 | UNS N06022 | 8.69g/cm³ | W.NR.2.4602 | NS3308 | 690 MPa min | 310 MPa min | …. | 60% min | HRC 41 max |
HASTELLOY C-276/C-22
Form | ASTM |
Rod | B 574 |
Plate, sheet and strip | B 575, B 906 |
Seamless pipe and tube | B 622 |
Welded pipe | B 619, B 775 |
Welded tube | B 626, B 751 |
Fitting | B 366 |
Forged or rolled pipe flange and forged fitting | B 462 |
Billet and bar for reforging | B 472 |
Forging | B 564 |

