Incoloy 800, also known as Alloy 800, N08800, and W.Nr. 1.4876, is a nickel-iron-chromium alloy with high strength and excellent resistance to oxidation and carburization at elevated temperatures. This alloy is designed for applications requiring corrosion resistance in various environments, including those with exposure to high temperatures and aggressive atmospheres. Incoloy 800 is commonly used in industrial furnaces, petrochemical processing, heat-treating equipment, and nitric acid processing due to its exceptional high-temperature properties and resistance to corrosion. Additionally, it finds application in power generation, particularly in steam superheater and reheater tubing systems, where it provides excellent high-temperature strength and resistance to oxidation and carburization.
Whatsapp:
+8615900526263E-mail:
sales@cocessalloys.comChemical Composition
|
Nickel (Ni) |
30.0-35.0 % |
|
Chromium (Cr) |
19.0-23.0 % |
|
Iron (Fe) |
39.5 % min |
|
Carbon (C) |
0.10 % max |
|
Manganese (Mn) |
1.50 % max |
|
Sulfur (S) |
0.015 % max |
|
Silicon (Si) |
1.0 % max |
|
Copper (Cu) |
0.75 % max |
|
Aluminum (Al) |
0.15-0.6 % |
|
Titanium (Ti) |
0.15-0.6 % |
Physical Properties
|
Density |
lb/in3 |
0.287 |
|
|
g/cm3 |
7.94 |
|
Melting Range |
°F |
2475-2525 |
|
|
°C |
1357-1385 |
|
Specific Heat, (32-212°F) |
Btu/lb•°F |
0.11 |
|
|
(0-100°C), J/kg•°C |
460 |
|
Permeability at 70°F (21°C) and 200 oersted (15 |
|
9 kA/m) |
|
|
Annealed |
1.014 |
|
|
Hot-Rolled |
1.009 |
|
Curie Temperature |
°F |
-175 |
|
|
°C |
-115 |
Mechanical Properties
|
Temperature |
Yield strength |
Yield strength |
Tensile strength |
Elongation |
||||
|
Rp 0.2 |
Rp 1.0 |
Rm |
A |
|||||
|
°C |
°F |
MPa |
Ksi |
MPa |
ksi |
MPa |
ksi |
% |
|
20 |
68 |
210 |
30.5 |
240 |
34.8 |
500 |
72.5 |
30 |
Incoloy 800 is utilized in a variety of high-temperature applications, including:
1. Industrial Furnaces: The alloy is commonly used in industrial furnace applications, such as radiant tubes, muffles, and other high-temperature furnace components, due to its exceptional resistance to oxidation and carburization.
2. Petrochemical Processing: Incoloy 800 finds application in the petrochemical industry, particularly in components exposed to high-temperature and corrosive environments, including catalyst grid supports, furnace baffles, and related equipment.
3. Heat-Treating Equipment: The alloy is employed in heat-treating equipment where elevated temperatures and resistance to oxidation and carburization are crucial, making it suitable for applications such as trays, baskets, and fixtures.
4. Nitric Acid Processing: Incoloy 800 is well-suited for use in nitric acid processing due to its resistance to corrosion in such chemical environments.
5. Power Generation: The alloy is also utilized in power generation applications, including steam superheater and reheater tubing systems, where it provides excellent high-temperature strength and resistance to oxidation and carburization.
Specifications for Incoloy 800 include the following:
|
Bar and Rod |
Forgings |
Seamless Pipe and Tube |
Welded Pipe and Tube |
Plate, Sheet, and Strip |
Fittings |
|
ASTM B 408 & ASME SB 408 |
ASTM B 564 & ASME SB 564 |
ASTM B 163/B 407 & ASME SB 163/ SB 407 |
ASTM B 514/B 515 & ASME SB 514/ SB 515 |
ASTM B 409 & ASME SB 409 |
ASTM B 366/ASME SB 366 |
Standard product forms of Incoloy 800 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at sales@cocessalloys.com for full information.
