Inconel 718

Type Inconel 718 alloy is one of the widely used nickel-based superalloy grades. With its unique composition of nickel, chromium, and niobium, it provides excellent high-temperature strength, corrosion resistance, and outstanding creep and fatigue properties after heat treatment. Grade Inconel 718 is commonly applied in aerospace, power generation, and chemical processing industries, especially in components exposed to high stress and elevated temperatures.

USA
JP
DE
EUR
CN
ASTM
JIS
DIN
EN
GB
B637
-
X8CrNi25-21
NiCr19Fe19Nb5Mo3
GH4169

Chemical Composition

The typical chemical composition is shown in the table below.

Certification

Grade
Standard
Inconel 718 Chemical Composition
C
Si
Mn
Cr
Ni
S
Mo
Nb
Ti
AI
B
≤ %
≤ %
%
%
%
≤ %
≤ %
≤ %
%
%
%
N07718
ASTM B637
0.08
0.35
0.35
17.0-21.0
50.0-55.0
0.015
2.80-3.30
Nb+Ta 4.75-5.50
0.65-1.15
0.20-0.80
0.006
GH4169
GB/T 14992
0.08
0.35
0.35
17.0-21.0
50.0-55.0
0.015
2.80-3.30
4.75-5.50
0.65-1.15
0.20-0.80
0.006

Other Product

Coil
Sheet
Pipe/Tube
Bar
Wire Rod
Others