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Equivalent designations
UNS N06035
DIN W. Nr. 2.4643
|
Form |
ASTM |
|
Rod |
B 574 |
|
Plate, sheet and strip |
B 575 |
|
Seamless pipe and tube |
B 622 |
|
Welded pipe |
B 619, B 775 |
|
Welded tube |
B 626, B 751 |
|
Welding fitting |
B 366 |
|
Forged or rolled pipe flange and forged fitting |
B 462 |
|
Billet and bar for reforging |
B 472 |
|
Forging |
B 564 |
Chemical composition
|
% |
Ni |
Cr |
Mo |
Fe |
Co |
W |
C |
Mn |
Si |
P |
S |
Al |
Cu |
V |
|
min |
balance |
32.25 |
7.6 |
|
|
|
|
|
|
|
|
|
|
|
|
max |
34.25 |
9.0 |
2.0 |
1.00 |
0.60 |
0.050 |
0.50 |
0.60 |
0.030 |
0.015 |
0.40 |
0.30 |
0.20 |
Physical properties
|
Density |
8.18 g/cm3 |
|
Melting range |
1332-1361¡æ |
Features: Hastelloy G-35 is an upgrade version of Hastelloy G-30. It has extraordinary resistance in the wet process phosphoric acid production environment, which is widely used in fertilizer production. Its performance in this environment is far superior to Hastelloy G-30 and stainless steels. It can also resist localized corrosion and chloride-induced stress corrosion cracking in chlorides containing media. Because of its high chromium content, Hastelloy G-35 is extremely resistant to other oxidizing acids, such as nitric acid and mixtures containing nitric acid. As a result of its appreciable molybdenum content, it possesses moderate resistance to reducing acids, and unlike other nickel-chromium-molybdenum alloys, it is very resistant to caustic dealloying in hot sodium hydroxide.
Applications: Wet process phosphoric acid production evaporators, pickling equipment using nitric acid and hydrofluoric acid, caustic neutralizing systems, and chemical process industry systems involving nitric acid and chlorides.
