Jul 4 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
INCOLOY alloy 890 offers high strength with excellent resistance to sulfidation, carburization, oxidation at temperatures up to 1200°C (2200°F). It is the latest addition to the INCOLOY family of heat-treatment alloys.
The following datasheet will discuss in detail about INCOLOY alloy 890.
Chemical Composition
The chemical composition INCOLOY alloy 890 is outlined in the following table.
|
Element |
Content (%) |
|
Nickel, Ni |
42.5 |
|
Iron, Fe |
25.605 - 28.4 |
|
Chromium, Cr |
25 |
|
Silicon, Si |
1.8 |
|
Molybdenum, Mo |
1.5 |
|
Manganese, Mn |
≤1 |
|
Titanium, Ti |
≤1 |
|
Copper, Cu |
≤ 0.75 |
|
Niobium, Nb |
0.4 |
|
Tantalum, Ta |
0.2 |
|
Carbon, C |
0.1 |
|
Aluminum, Al |
0.1 |
Physical Properties
The following table shows the physical properties of INCOLOY alloy 890.
|
Properties |
Metric |
Imperial |
|
Density |
7.94 g/cm3 |
0.287 lb/in3 |
|
Melting point |
1309-1383°C |
2388-2521°F |
Mechanical Properties
The mechanical properties of INCOLOY alloy 890 are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
62 MPa |
8990 psi |
|
Yield strength |
44 MPa |
6380 psi |
|
Elongation at break |
46.50% |
46.50% |
Thermal Properties
The thermal properties of INCOLOY alloy 890 are given in the following table
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@100°C/212°F) |
14.47µm/m°C |
8.039 µin/in°F |
Other Designations
Other designations that are equivalent to INCOLOY alloy 890 include the following:
-
ASTM B 906
-
ASTM B 409
-
ASTM B 408
-
ASTM B 407
Applications
INCOLOY alloy 890 is mainly used for domestic and industrial sheathed heater applications and other high-temperature applications.