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The picture of high temperature alloy Inconel 718 sheet
Inconel 718 is a high strength nickel base superalloy used for cryogenic temperatures up to long term service at 1200°F. The alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. Anneal 1700 -1850°F, air cool or faster. Age 1325°F 8 hours, furnace cool to hold at 1150°F, for a total aging time of 18 hours, air cool. Alloy 718 will show a contraction of 0.0008 inch/inch after precipitation hardening.
Chemistry
|
Ni+Co |
Cr |
Cb+Ta |
Mo |
Ti |
Al |
Co |
C |
Mn |
MIN |
50.00 |
17.00 |
4.75 |
2.80 |
0.65 |
0.20 |
-- |
-- |
-- |
MAX |
55.00 |
21.00 |
5.50 |
3.30 |
1.15 |
0.80 |
1.00 |
0.08 |
0.35 |
Si |
P |
S |
B |
Cu |
Fe |
-- |
-- |
-- |
-- |
-- |
-- |
0.35 |
0.015 |
0.015 |
0.006 |
0.30 |
Balance |
Alloy Form
718 plate, round bar, sheet, welding products
Common Trade Names
Alloy 718, Inconel 718, Nickel 718
Features
- Good mechanical properties: tensile, fatigue and creep-rupture
- Excellent welding characteristics, resistant to postweld age cracking
- Oxidation resistant throughout its useful temperature range
Applications
- Gas turbine engine parts
- Liquid fuel rocket motor components
- Springs, fasteners
- Cryogenic tanks
Physical Properties
Density: 0.296 lb/in3 annealed, 0.274 lb/in3 aged
Melting point: 2410 - 2540°F
Temperature, °F |
-320 |
70 |
200 |
400 |
600 |
1000 |
1200 |
1400 |
Coefficient* of thermal expansion, in/in°F x 10-6 |
5.9 |
- |
7.3 |
7.5 |
7.7 |
8.1 |
8.4 |
8.9 |
Thermal Conductivity |
- |
6.4 |
7.2 |
8.2 |
9.3 |
11.3 |
12.3 |
13.3 |
Modulus of Elasticity, dynamic psi x 106 |
- |
29 |
28 |
27 |
26 |
25 |
24 |
22 |
* 70°F to indicated temperature.
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We can provide high quality material, excellent design, precise manufacturing,complete specifications, considerate and integrity serivices.
We can provide all kinds of electric heating alloy material and elements, including customized products.
We can provide a complete solution for you.
OEM service can be provided.
b. Technical services we can provide:
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