Alloy X
Equivalent designations
UNS N06002
DIN W. Nr. 2.4665
Form
ASTM
Rod
B 572
Plate, sheet and strip
B 435, B 906
Seamless pipe and tube
B 622
Welded pipe
B 619, B 775
Welded tube
B 626, B 751
Welding fitting
B 366
Billet and bar for reforging
B 472
Chemical composition
%
Ni
Cr
Fe
Mo
Co
W
C
Mn
Si
P
S
min
balance
20.5
17.0
8.0
0.5
0.20
0.05
max
23.0
20.0
10.0
2.5
1.00
0.15
1.00
1.00
0.040
0.030
Physical properties
Density
8.23 g/cm3
Melting range
1260-1355℃
Features: Hastelloy X is a nickel-chromium-iron-molybdenum alloy with an exceptional combination of high temperature strength, oxidation resistance and fabricability. It shows good ductility after prolonged exposure at temperatures up to 870℃ for 16000 hours. It also has excellent resistance to stress corrosion cracking in petrochemical applications.
Applications: Gas turbine engine combustion zone components, industrial furnaces, chemical process industry.