Alloy 718
Introduction
Alloy 718 is a nickel super alloy frequently used for cryogenic storage tanks, turbines, down hole shafting and well head parts. High tolerance to extremely high and low temperatures allow inconel 718 to be welded and annealed into products that will withstand extreme conditions. Other uses include jet rocket, nuclear fuel, and pump body components.
It equivalent to: TAFA 78T, Sulzer Metco 8718.
Surface Preparation
Surface should be clean, white metal, with no oxides (rust), dirt, grease, or oil on the surface to be coated. Note: It is best not to handle surfaces after cleaning. Recommended method of preparation is, to grit blast with 24 mesh aluminum oxide, rough grind, or rough machine in a lathe.
Application
l Coating
l Casings
l Instrumentation components
l Nuclear fuel element spacers
l High-strength bolts
| Type |
Composition(100%) |
| Ni |
Cr |
Fe |
Others |
Ti |
Al |
Co |
| Alloy 718 |
50-55 |
17-21 |
Bal |
4.75-5.5 |
0.65-1.15 |
0.2-0.8 |
Max 1.0 |
| C |
Mn |
Si |
P |
S |
Cu |
B |
|
| Max 0.08 |
Max 0.35 |
Max 0.35 |
Max 0.015 |
Max 0.015 |
Max 0.3 |
Max 0.006 |
|
Chemical composition
Specifications
| Grade |
GE |
| Alloy 718 |
B50TF202 |
Physical Properties
| Grade |
Density |
Melting Point |
| Alloy 718 |
8.2g/cm3 |
1260°C-1340 °C |
Typical Deposit Characteristics
| Typical Hardness |
Bond Strength |
Deposit Rate |
Deposit Efficiency |
Machilityineab |
| HRC 30 |
9000 psi |
10 lbs /hr/100A |
70% |
Good |
Standard Sizes & Packing
| Diameter |
Packing |
Wire Weight |
| 1/16 (1.6mm) |
D 300 Spool |
15kg(33 lb)/spool |
Other sizes can be produced by customers' requirement.
Audited Supplier 
){kind=link}