Jul 4 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Nickel alloy 800 is a nickel-iron-chromium alloy that resists carburization and oxidation at elevated temperatures. High nickel content in its composition makes the alloys highly resistant to both chloride stress-corrosion cracking and to embrittlement from precipitation of sigma phase.
The following section will discuss in detail about nickel alloy 800.
Chemical Composition
The chemical composition nickel alloy 800 is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
39.5 |
|
Nickel, Ni |
35 |
|
Chromium, Cr |
19-23 |
|
Manganese, Mn |
1.5 |
|
Silicon, Si |
1 |
|
Copper, Cu |
0.75 |
|
Titanium, Ti |
0.15-0.6 |
|
Aluminum, Al |
0.15-0.6 |
|
Carbon, C |
0.1 |
|
Sulfur, S |
0.015 |
Physical Properties
The following table shows the physical properties of nickel alloy 800.
|
Properties |
Metric |
Imperial |
|
Density |
8.03 g/cm3 |
0.29 lb/in3 |
Mechanical Properties
The mechanical properties of nickel alloy 800 are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength (@21°C/70°F) |
600 MPa |
87700 psi |
|
Yield strength (@21°C/70°F) |
295 MPa |
43000 psi |
|
Elongation at break (@21°C/70°F) |
44% |
44% |
Thermal Properties
The thermal properties of nickel alloy 800 are given in the following table
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-100°C/68-212°F) |
14.4 µm/m°C |
8 µin/in°F |
|
Thermal conductivity |
11.5 W/mK |
79.735 BTU.in/hrft².°F |
Other Designations
Other designations that are equivalent to nickel alloy 800 include the following:
-
ASTM B 409
-
ASME SB 409
-
AMS 5871
Applications
The following are the list of applications of nickel alloy 800:
-
Steel production
-
Thermal processing fixtures
-
Power generation
-
Chemical and petrochemical processing equipment.