Introduction
Inconel 718 is a precipitation hardenable nickel-based alloy designed to display exceptionally high yield, tensile and creep-rupture properties at temperatures up to 1300°F. The sluggish age-hardening response of alloy 718 permits annealing and welding without spontaneous hardening during heating and cooling. This alloy has excellent weldability when compared to the nickel-base superalloys hardened by aluminum and titanium.
Typical Uses and Applications
Inconel 718 is widely 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.
Product Details
Chemical composition:
Grade
|
Ni%
|
Cr%
|
Mo%
|
Nb%
|
Fe%
|
Al%
|
Ti%
|
C%
|
Mn%
|
Si%
|
Cu%
|
S%
|
|
Inconel 718
|
50-55
|
17-21
|
2.8-3.3
|
4.75-5.5
|
Bal.
|
0.2-0.8
|
0.7-1.15
|
Max 0.08
|
Max 0.35
|
Max 0.35
|
Max 0.3
|
Max 0.01
|
Specifications:
Grade
|
UNS
|
Werkstoff Nr.
|
|
Inconel 718
|
N07718
|
2.4668
|
Physical Properties:
Grade
|
Density
|
Melting Point
|
|
Inconel 718
|
8.2g/cm3
|
1260°C-1340 °C
|
Mechanical Properties:
Grade
|
Tensile Strength
|
Yield Strength
|
Elongation
|
Brinell Hardness (HB)
|
|
Inconel 718
|
965 N/mm²
|
550 N/mm²
|
30%
|
≤363
|
Available Specifications:
Pipe and Tube
|
Sheet/Plate
|
Bar
|
Welding Metal
|
|
SAE AMS 5589, SAE AMS 5590
|
ASTM B-670
|
ASTM B-637
|
AWS 5.14 / ERNiFeCr-2
|
Available forms:
Inconel 718 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.