Incoloy 800H alloy has corresponding similar grades in different countries and regions, as follows:
-USA: Incoloy 800H, UNS N08810
-China: GH3044
Europe: 1.4958
-Japan: NCF 800H
Incoloy 800H
Incoloy 800H Alloy Properties
Incoloy 800H is a nickel-iron-chromium alloy Incoloy an improved version of 800 high temperature performance, with excellent corrosion resistance and oxidation resistance, especially suitable for high temperature applications. The alloy is widely used in chemical, petroleum and heat treatment equipment.
Ingredients
|
element |
Content (%) |
|
Nickel (Ni) |
30.0-35.0 |
|
Chromium (Cr) |
19.0-23.0 |
|
Iron (Fe) |
margin |
|
carbon (C) |
0.05-0.1 |
|
Aluminum (Al) |
0.15-0.6 |
|
Titanium (Ti) |
0.15-0.6 |
|
Manganese (Mn) |
≤ 1.5 |
|
Silicon (Si) |
≤ 1.0 |
|
Copper (Cu) |
≤ 0.75 |
|
Phosphorus (P) |
≤ 0.03 |
|
Sulfur (S) |
≤ 0.015 |
physical properties
|
performance index |
value |
|
density |
7.94 g/cm³ |
|
melting point |
1357-1385°C |
|
Coefficient of thermal expansion (20-1000°C) |
13.3 x 10⁻⁶ /°C |
|
thermal conductivity |
11.2 W/(m·K) |
|
modulus of elasticity |
200 GPa |
heat treatment
|
Processing Steps |
Description |
|
solution treatment |
is heated at 1100-1150°C and then rapidly cooled to improve the high temperature properties of the alloy. |
machining and welding
·Cold working: suitable for cold drawing and cold rolling, which can increase strength.
·Hot processing: It should be carried out between 900-1200°C.
·welding: suitable for TIG and MIG welding, no special heat treatment after welding.
Application
·Chemical equipment: suitable for heat exchangers and reactors in high-temperature corrosive environments.
·Petroleum industry: used in high temperature distillation columns and heaters.
·heat treatment equipment: high temperature furnace lining and crucible.
·Power industry: used for high-temperature parts of boiler parts and turbines.
Incoloy 800H alloy is available in different shapes and sizes, including plates, bars, wires and forgings.
