ASTM B366 N08810 Incoloy 800H 1.4958 180 DEG Elbow Buttweld B16.9
ASTM B366 N08810 Incoloy 800H 1.4958 180°Elbow Long Radius Butt Weld Fitting
ASTM B366 is a standard specification for factory-made wrought nickel and nickel alloy welding fittings. These fittings are primarily used in piping systems for corrosive and high-temperature services. The specification covers fittings such as elbows, reducers, tees, caps, lap joints, and stub ends made from nickel, nickel alloys, and certain nickel-copper alloys.
Incoloy 800H is a nickel-iron-chromium alloy with good strength and excellent resistance to oxidation and carburization at high temperatures. It is a member of the family of Incoloy alloys, which are known for their high-temperature strength and resistance to corrosion and oxidation.
ASTM B366 N08810 fittings are factory-made wrought fittings specifically designed for use in high-temperature and corrosive environments. These fittings are used in various industries such as chemical processing, petrochemical, power generation, and heat treating equipment where resistance to oxidation, carburization, and corrosion at elevated temperatures is essential.
Chemical Composition
| N08810 | C | Ti | Mn | Fe | S | Si | Cr | Ni | Cu | Al |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | – | 0.150 | – | 39.500 | – | 19.000 | 30.000 | – | 0.150 | |
| MAX | 0.100 | 0.600 | 1.500 | 0.015 | 1.000 | 23.000 | 35.000 | 0.750 | 0.600 |
Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 800 / 800H / 800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| UNS N08800 | 1.4876 | N08800 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 | XH32T |
| UNS N08810 | 1.4958 | N08810 | NCF 800H | NA 15(H) | ЭИ670 | Z8NC33-21 | X5NiCrAlTi31-20 | XH32T |
| UNS N08825 | 2.4858 | N08825 | NCF 825 | NA 16 | ЭП703 | NFE30C20DUM | NiCr21Mo | XH38BT |
Applications of Incoloy 800H Pipe Fittings:
Chemical Processing Industry: Incoloy 800H pipe fittings are widely used in chemical processing plants for handling corrosive chemicals and acids at elevated temperatures. They provide excellent resistance to oxidation and corrosion, making them suitable for applications such as reactors, heat exchangers, and piping systems.
Petrochemical Industry: In the petrochemical industry, Incoloy 800H pipe fittings are used in refining and processing operations. They are employed in equipment such as furnaces, heaters, and reactors where they can withstand high temperatures and corrosive environments encountered in refining crude oil and processing petroleum products.
Power Generation: Incoloy 800H pipe fittings find applications in power generation facilities, particularly in boiler systems and steam generation equipment. These fittings are resistant to oxidation and carburization at high temperatures, making them suitable for use in coal-fired, gas-fired, and nuclear power plants.
Heat Treatment Equipment: Incoloy 800H pipe fittings are utilized in heat treatment furnaces and equipment where they can withstand the high temperatures and harsh conditions involved in heat treating metals and alloys. Their excellent creep resistance and high-temperature strength make them ideal for such applications.
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