Incoloy 800H, also known as Alloy 800H, N08810, and W.Nr. 1.4958, is a nickel-iron-chromium alloy with good strength and excellent resistance to high-temperature corrosion and oxidation. This alloy is designed for high-temperature applications where creep and rupture properties are required. Incoloy 800H offers superior resistance to carburization, nitridation, and other high-temperature atmospheres. It is commonly used in applications such as industrial furnaces, petrochemical processing, and heat-treating equipment, where elevated temperatures and corrosive environments are present. Additionally, this alloy is suitable for use in nitric acid and organic acid processing.
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) |
0.05-0.10 % |
|
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 |
|
|
Curie Temperature |
(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 |
|
|
A°C |
-115 |
Mechanical Properties
|
Temperature |
Yield strength |
Tensile strength |
Elongation |
|||
|
Rp 0.2 |
Rm |
A |
||||
|
°C |
°F |
MPa |
Ksi |
MPa |
ksi |
% |
|
20 |
68 |
170 |
24.7 |
450-700 |
65.3-101.5 |
Longit. 35 Transverse 30 |
Incoloy 800H 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 excellent resistance to oxidation and carburization.
2. Petrochemical Processing: Incoloy 800H finds application in the petrochemical industry, particularly in components exposed to high-temperature and corrosive environments, including catalyst grid supports, furnace baffles, and other related equipment.
3. Heat-Treating Equipment: The alloy is employed in heat-treating equipment where elevated temperatures and resistance to oxidation and carburization are essential, making it suitable for applications such as trays, baskets, and fixtures.
4. Nitric Acid and Organic Acid Processing: Incoloy 800H is used in environments involving nitric acid and organic 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 800H 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 800H 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.
