Inconel 690, also known as Alloy 690, with the UNS designation N06690 and W. Nr. 2.4642, is a a nickel-chromium-iron alloy with excellent resistance to corrosion and oxidation at high temperatures. It is commonly used in applications that involve heat treatment, thermal processing, and corrosive environments, such as in the production of nuclear fuel processing components, steam generators in nuclear power plants, and other high-temperature industrial processes. Inconel 690 offers good mechanical properties and thermal stability, making it suitable for use in extreme conditions.
Whatsapp:
+8615900526263E-mail:
sales@cocessalloys.comChemical Composition
|
Nickel (Ni) |
58% min |
|
Chromium (Cr) |
27-31% |
|
Iron (Fe) |
7-11% |
|
Silicon (Si) |
0.5% max |
|
Carbon (C) |
0.05% max |
|
Manganese (Mn) |
0.5% max |
|
Sulfur (S) |
0.015 max |
|
Copper (Cu) |
0.5% max |
Physical Properties
|
Density |
lb/in3 |
0.296 |
|
g/cm3 |
8.19 |
|
|
Melting Range |
°F |
2450-2510 |
|
°C |
1343-1377 |
|
|
Specific Heat |
Btu/lb•°F |
0.107 |
|
J/kg•°C |
450 |
|
|
Electrical Resistivity |
ohm-circ mil/ft |
691 |
|
μΩ-m |
1.148 |
|
|
Permeability at 200 oersteds (15.9 kA/m |
|
1.001 |
|
oung’s Modulus |
103 ksi |
30.6 |
|
GPa |
211 |
|
|
Poisson’s Ratio |
0.289 |
Mechanical Properties
|
Temperature |
Yield strength |
Tensile strength |
Elongation |
|||
|
Rp 0.2 |
Rm |
A |
||||
|
°C |
°F |
MPa |
ksi |
MPa |
ksi |
% |
|
20 |
68 |
240 |
34.8 |
590 |
85.6 |
30 |
Inconel 690 is commonly used in various high-temperature applications, including:
1. Nuclear power generation: Inconel 690 is utilized in the construction of steam generators, reactor core components, and other critical parts in nuclear power plants due to its resistance to corrosion and high-temperature environments.
2. Thermal processing equipment: It is employed in the manufacturing of heat-treating fixtures, furnace components, and other equipment used in high-temperature thermal processing applications.
3. Chemical processing: Inconel 690 is used in equipment for chemical processing, such as in the production of nitric acid, where resistance to corrosion and oxidation at elevated temperatures is crucial.
4. Aerospace industry: It finds applications in components for gas turbine engines, combustion chambers, and afterburners due to its ability to withstand high temperatures and corrosive environments.
5. Other industrial applications: Inconel 690 is also used in various industrial processes requiring resistance to high temperatures, such as in the production of petrochemicals, waste incineration plants, and other high-temperature environments.
Specifications for Inconel 690 include the following:
|
Bar, Rod and Wire |
Seamless Pipe and Tube |
Welded Tube |
Plate, Sheet, and Strip |
Forgings |
|
ASTM B 166/ASME SB 166 |
ASTM B 163 / ASME SB 163, ASTM B 167 / ASME SB 167 |
AASTM B 516/ASME SB 516 |
ASTM B 168/ASME SB 168 |
ASTM B 564/ASME SB 564 |
Standard product forms of Inconel 690 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.
