Hastelloy Series
Hastelloy C-4/ UNS N06455/ W.Nr.2.4610
Hastelloy B/B-2 UNS N10665 /W.Nr.2.4617
Hastelloy B-3 / UNS N10675 / W.Nr.2.4600
Chemical Composition Wt.%:
Ni: Balance,
Cr:14.0~18.0，
Mo: 14.0~17.0，
Fe:≤3.0，
Mn:≤1.0,
C:≤0.015，
Ti:≤0.7,
Si:≤0.08，
S:≤0.03,
P:≤0.04
Physical Constants:
Density: 9.24 g/cm³
Melting Point: 1330~1380 °C
Mechanical Properties (Solution Annealing):
Tensile Strength ≥ 690 MPa
Yield Strength ≥ 276 MPa
Elongation ≥ 40%
Hardness ≤ 200HB
Advantages of Inconel C-4:
It is resistant to combined oxidation-reduction corrosion in chloride-containing environments and exhibits good microstructural thermal stability.
Application:
1.Flue Gas Desulfurization (FGD) Systems
2.Pickling and Acid Regeneration Plants
3.Acetic Acid and Agrochemical Production
4.Titanium Dioxide(TiO₂)Production(Chloride Process)
5.Electroplating and Electrolysis,etc.
Chemical Composition Wt.%:
Ni:Balance，
Cr:≤1.00，
Fe:≤2.00，
Mo:26.00~30.00，
C:≤0.02，
Mn:≤1，
Si:≤0.1，
S:≤0.03,
P:≤0.04，
Co:≤1.00
Physical Constants:
Density: 9.24 g/cm³
Melting Point: 1330~1380 °C
Mechanical Properties (Solution Annealing):
Tensile Strength ≥ 690 MPa
Yield Strength ≥ 310 MPa
Elongation ≥ 40%
Advantages of Inconel B/B-2:
1.The minimum contents of iron and chromium are controlled to prevent the formation of the β-phase Ni₄Mo.
2.Excellent corrosion resistancein reducing environments.
3.Outstanding resistance to moderately concentrated sulfuric acid and many non-oxidizing acids.
4.Very good resistance to chloride ion-induced stress corrosion cracking (SCC) in reducing conditions.
5.Excellent resistance to corrosion by various organic acids.
Application:
Hastelloy B-2 finds wide application in the chemical,petrochemical,energy production,and pollution control industries,particularly in processes involving sulfuric acid,hydrochloric acid,phosphoricacid,acetic acid,etc.
Chemical Composition Wt.%:
Ni: ≥65.0,
Cr: 1.0~3.0,
Fe: 1.0~3.0,
Mo: 27.0~32.0,
W: ≤3.0,
Cu: ≤0.2,
Co: ≤3.0,
Al: ≤0.5,
Ti: ≤0.2,
Mn: ≤3.0,
Si: ≤0.1,
S: ≤0.01,
P: ≤0.03,
V: ≤0.2
Physical Constants:
Density: 9.22 g/cm³
Melting Point: 1370~1418 °C
Mechanical Properties (Solution Annealing):
Tensile Strength ≥ 820 MPa
Yield Strength ≥ 420 MPa
Elongation ≥ 53.4%
Advantages of Inconel B-3:
1.This alloy exhibits good forgeability. The forging heating temperature is 1140°C,and thefinalforgingtemperatureis900°C.
2. The average grain size of this alloy is closely related to the degree of deformation of the forging and the final forging temperature.
3.The alloy has satisfactory weldability.Welding is performed in the solution-treated condition,followed by aging treatment after welding.
Application:
1. All applications of Hastelloy B2;
2. Not recommended for environments containing ferric (Fe³⁺) or cupric (Cu²⁺) salts.
Hastelloy C-22 /UNS N06022/ W.Nr.2.4602
Hastelloy X /UNS N06002 / GH3536
Chemical Composition Wt.%:
Ni: Balance,
Cr: 20.0~22.5
Fe: 2.0~6.0
Mo: 12.5~14.5
W: 2.5~3.5
C: ≤0.015
Co: ≤2.5
P: ≤0.02
V: ≤0.35
Mn: ≤0.5
Si: ≤0.08
S: ≤0.02
Physical Constants:
Density: 8.9 g/cm³
Melting Point: 1325~1370 °C
Mechanical Properties (Annealing):
Tensile Strength ≥ 690 MPa
Yield Strength ≥ 283 MPa
Elongation ≥ 40%
Advantages of Hastelloy C-22:
1. Superior overall corrosion resistance compared to C276, C4, 625 alloys;
2. Excellent resistance to pitting, crevice corrosion and stress corrosion cracking;
3. Outstanding resistance to oxidizing aqueous media and various chemical process environments;
4. Resists grain boundary precipitation in weld heat affected zone, usable in as welded condition.
Application:
1.Acetic acid/acetic anhydride;
2. Acid leaching;
3. Cellophane manufacturing;
4. Chlorination systems;
5. Complex mixed acids;
6. Rollers for electroplating zinc baths;
7. Expansion bellows;
8. Flue gas scrubber systems;
9. Geothermal wells;
10. Hydrogen fluoride furnace scrubbers;
11. Incinerator scrubber systems;
12. Nuclear fuel reprocessing;
13. Pesticide production;
14. Phosphoric acid production;
15. Pickling systems;
16. Plate heat exchangers;
17. Selective filtration systems;
18. Sulfur dioxide cooling towers;
19. Sulfonation systems;
20. Shell and tube heat exchangers;
21. Weld overlay valves.
Chemical Composition Wt.%:
Ni: Balance,
Cr: 20.5~23.0,
Mo: 8.0~10.0,
Fe:17.0~20.0,
W: 0.2~1.00,
Co: 0.5~2.5,
C: 0.05~0.15,
Mn: ≤1.0,
Si: ≤1.0,
Al: ≤0.5,
Ti: ≤0.15,
P: ≤0.025,
S: ≤0.015,
Cu: ≤0.5
Physical Constants:
Density: 8.28 g/cm³
Melting Point: 1295~1381 °C
Mechanical Properties (Solution RT):
Tensile Strength ≥ 690 MPa
Yield Strength ≥ 310 MPa
Elongation ≥ 30%
Advantages of Hastelloy X:
1.Exhibits moderate creep and rupture strength below 900℃.
2.Excellent oxidation and corrosion resistance,good hot and cold workability and weldability.
3.Suitable for manufacturing components such as aero-engine combustors that operate for extended periods at temperatures below 900℃.
4.High-temperature parts that experience short-term service at temperatures up to 1080℃.
Application:
1. Aeroengine combustors, after burners, hot section parts;
2. Honeycomb structures, diffusers, civil industry high temperature components.
Hastelloy C-2000 /UNS N06200 /W.Nr.2.4675
Chemical Composition Wt.%:
Ni: Balance,
Cr: 22.0~24.0,
Mo: 15.0~17.0,
Fe:≤3.0,
Mn: ≤0.5,
C: ≤0.01,
Cu: 1.3~1.9,
Si: ≤0.08,
S: ≤0.01,
P: ≤0.025,
Al: ≤0.5,
Co: ≤2.0
Physical Constants:
Density: 8.9 g/cm³
Melting Point: 1335~1380 °C
Mechanical Properties (Solution RT):
Tensile Strength ≥ 1300 MPa
Yield Strength ≥ 760 MPa
Elongation ≥ 45%
Advantages of Hastelloy C-2000:
This alloy is designed to resist a wide range of corrosive chemicals, including hydrochloric acid,sulfuric acid,and hydroftuoric acid. Unlike previous Ni-Cr-Mo alloys, which were typically optimized for either oxidation or reducing acids, C-2000 exhibits corrosion resistancein both environments.The combination of molybdenum and copper(at levels of approximately 16% and 1.6%, respectively) provides excellent resistance to corrosion by reducing media.Simultaneously, the high chromium content (23% wt) ensures resistance to corrosion by oxidizing media.
Application:
1. Acetic acid/acetic anhydride production, acid pickling, chlorination systems;
2. Expansion joints, bellows, flue gas scrubbers, geothermal wells;
3. Nuclear fuel reprocessing, phosphoric acid production, plate heat exchangers;
4. Sulfur dioxide cooling towers, shell and tube heat exchangers, hydrogen fluoride furnace cleaning.