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Incoloy Series

Incoloy 800/ UNS NO8800

Incoloy 800H/ UNS NO8810

Incoloy 800HT/ UNS NO8811

Chemical Composition Wt.%:

Ni: 30.0~35.0

Cr :19.0~23.0

Fe :balance

C :≤0.1

Mn: ≤1.5

Si :≤1.0

Cu: ≤0.75

Al :0.15~0.6

S :≤0.015

Ti:0.15~0.06

Al+Ti:0.85~1.2

Physical Constants:

Density: 8.0 g/cm³

Melting Point: 1350~1400 °C

Mechanical Properties (Room Temperature):

Tensile Strength ≥ 500 MPa

Yield Strength ≥ 210 MPa

Elongation ≥ 35%

Advantages of Incoloy 800:

1.Excellent corrosion resistance in aqueous media atultra-hightemperatures up to500°C

2.Excellent resistance to stress corrosion

3.Excellent work ability

Application:

1.Nitric acid condenser-Nitricacid corrosion resistance

2. Steam heating tube-Excellent mechanicalproperties

3.Heating element tube-Excellent mechanical properties

For applications in environments up to 500°C,the alloy is supplied in the annealed condition.

Chemical Composition Wt.%:

Ni: 30.0~35.0

Cr :19.0~23.0

Fe :balance

C :0.05~0.1

Mn: ≤1.5

Si :≤1.0

Cu: ≤0.75

Al :0.15~0.6

S :≤0.015

Ti:0.15~0.06

Al+Ti:0.85~1.2

​​​​

Physical Constants:

Density: 8.0 g/cm³

Melting Point: 1350~1400 °C

Mechanical Properties (Room Temperature):​

Tensile Strength ≥ 450 MPa

Yield Strength ≥ 180 MPa

Elongation ≥ 35%

​​

Advantages of Incoloy 800H:

1.Excellent corrosion resistance in aqueous media atultra-hightemperatures up to500°C

2.Excellent resistance to stress corrosion

3.Excellent work ability

Application:

1.Nitric acid condenser-Nitricacid corrosion resistance

2. Steam heating tube-Excellent mechanicalproperties

3.Heating element tube-Excellent mechanical properties

For applications in environments up to 500°C,the alloy is supplied in the annealed condition.

Chemical Composition Wt.%:

Ni: 30.0~35.0

Cr :19.0~23.0

Fe :balance

C :0.06~0.1

Mn: ≤1.5

Si :≤1.0

Cu: ≤0.75

Al :0.15~0.6

S :≤0.015

Ti:0.15~0.06

Al+Ti:0.85~1.2

​​​​

Physical Constants:

Density: 8.0 g/cm³

Melting Point: 1350~1400 °C

Mechanical Properties (Room Temperature):​

Tensile Strength ≥ 450 MPa

Yield Strength ≥ 180 MPa

Elongation ≥ 30%

​​

Advantages of Incoloy 800HT:

1.Excellent corrosion resistance in aqueous media atultra-hightemperatures up to500°C

2.Excellent resistance to stress corrosion

3.Excellent work ability

Application:

1.Nitric acid condenser-Nitricacid corrosion resistance

2. Steam heating tube-Excellent mechanicalproperties

3.Heating element tube-Excellent mechanical properties

For applications in environments up to 500°C,the alloy is supplied in the annealed condition.

Incoloy 825/ UNS NO8825/ W.Nr.2.4858

Incoloy 925/ UNS NO9925

Incoloy 926/ UNS NO8926/ Mo6CuN

Chemical Composition Wt.%:

Ni :38.0~46.0

Cr :19.5~23.5

Mo :2.5~3.5

Fe :balance

Mn:≤1.0

C :≤0.05

P :≤0.02

Si :≤0.5

S :≤0.015

Ti :0.6~1.2

Cu:1.5~3.0

Al:≤0.2

Physical Constants:

Density: 8.1 g/cm³

Melting Point: 1370~1400 °C

Mechanical Properties (Solution Treatment):

Tensile Strength ≥ 550 MPa

Yield Strength ≥ 250 MPa

Elongation ≥ 35%

Hardness ≤ 200HB

Advantages of Incoloy 825:

1. Excellent resistance to stress corrosion cracking (SCC).

2.Excellent resistance to pitting and crevice corrosion.

3.Good oxidation resistance and resistance to non-oxidizing hot acids.

4.Good mechanical properties at room temperature and elevated temperatures up to 550°C.

5. Certified for the fabrication of pressure vessels operating at temperatures up to 450°℃.

Application:

1.Heating tubes,vessels, baskets, and chains for sulfuric acid pickling plants.

2.Seawater cooling heat exchangers,marine product piping systems,and pipelines in acidic gas environments.

3.Heat exchangers, evaporators,washing, and immersion tubes in phosphoric acid production.

4.Air heat exchangers in petroleum refining.

5.Foodengineering.

6.Chemical processing.

7.Flame-retardant alloys for high-pressure oxygen applications.

Chemical Composition Wt.%:

Ni :24.0~26

Cr :19.0~21.0

Mo :6.0~7.0

Fe :balance

Mn:≤1.0

C :≤0.02

P :≤0.045

Si :≤0.5

S:≤0.03

N:0.1~0.2

Cu:0.8~1.5

Physical Constants:

Density: 8.14 g/cm³

Melting Point: 1311~1366 °C

Mechanical Properties (Solution Treatment):

Tensile Strength ≥ 650 MPa

Yield Strength ≥ 295 MPa

Elongation ≥ 30%

Advantages of Incoloy 825:

1.Possesses the excellent strength and corrosion resistance of Incoloy 825.

2.Good resistance to sulfide stress cracking (SSC) and stress corrosioncracking(SCC) insulfide environments.

Application:

Components for use in sour environments (containingH2S) downhole and on the surface,such as in crude oil and natural gas production.

Chemical Composition Wt.%:

Ni :24.0~26.0

Cr :19.0~21.0

Mo: 6.0~7.0

Fe :balance

Mn :≤2.0

C :≤0.02

P :≤0.03

Si:≤0.05

S :≤0.01

Ti :≤0.5

Cu:0.5~1.5

N:0.15~0.25

Physical Constants:

Density: 8.1 g/cm³

Melting Point: 1320~1390 °C

Mechanical Properties (Solution Treatment):

Tensile Strength ≥ 650 MPa

Yield Strength ≥ 295 MPa

Elongation ≥ 35%

Advantages of Incoloy 926:

1.Exhibits high resistance to pitting and crevice corrosion in halidemedia andacidic mediacontaining HaS.

2. Effectively resists chlorideion stress corrosion cracking(SCC)inpractical applications.

3. Demonstrates excellent corrosion resistance to variousforms of corrosion in typical oxidizing and reducing environments.

4. Offers sign if cantly improved mechanical properties compared to Cronifer1925LC-Alloy 904L.

5. Provides substantially enhanced metallurgical stability compared to other alloys in the same

series with 18% nickel content.

6. Holds certif cations for pressure vessel fabrication (VdTUV-196~400°C and ASME certif cation).

Application:

1. Hydraulic and filling piping systems in fire protection systems,seawater desalination systems,

and marine engineering.

2.Bleaching tanks in cellulose pulp production.

3.Polished rods incorrosive oil wells.

4.Hosesystems in marineengineering.

5.Pipelines, fittings, and flow systems in sour gas production.

6.Components in flue gas desulfurization (FGD) systems.

7.Evaporators,heat exchangers,filters,and mixers in phosphoric acid production.

8. Sulfuric acid separation and condensation systems.

9.Evaporators for concentrating and crystallizing salts.

10.Condensation and piping systems in power plants using sewage cooling water.

11.Containers for transporting corrosive chemicals.

12. Production oforganic derivatives using acidic chloridecatalysts.

13. Reverse osmosis (RO) desalination plants.

IncoloyA-286/ UNS S66286/ GH2132

Incoloy20/ Alloy20/ UNS N08020

Incoloy28/ Alloy28/ UNS N08020

Chemical Composition Wt.%:

Ni:20.0~27.0

Cr :13.5~16.0

Fe :balance

Mo:0.1~0.5

P:≤0.08

V :0.1~0.5

C :≤0.08

Mn :1.0~2.0

Si:≤1.0

S :≤0.02

B :0.001~0.01

Al :≤0.4

Ti :1.75~2.35

Cu:≤0.25

Physical Constants:

Density: 7.93 g/cm³

Melting Point: 1364~1424 °C

Mechanical Properties (Solution Treatment):

Tensile Strength ≥ 930 MPa

Yield Strength ≥ 590 MPa

Elongation ≥ 15%

Hardness ≤ 341HB

Advantages of Incoloy A-286:

1. This alloy exhibits good for geability. The forging heating temperature is 1140C,and the final forging temperatureis 900°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 agingtreatmentafterwelding.

Application:

Thisalloy isan Fe-25Ni-15Cr-based superalloy, comprehensively strengthened by the addition of molybdenum,titanium,aluminum,vanadium,and a trace amount of boron. It exhibits highyield strength, creepstrength, and rupture strength below650°C, along with good workability and satisfactory weldability. It is suitablefor manufacturing high-temperatureload-bearing components of aero-enginesthat operate continuously below650C,such asturbine disks,compressor disks,rotor blades, and fasteners.

Chemical Composition Wt.%:

Ni:32.0~38.0

Cr :19.0~21.0

Cu :3.0~4.0

Fe :balance

Mn :≤2.0

C :≤0.07

P :≤0.045

Si :≤1.0

S :≤0.035

Mo:2.0~3.0

Nb+Ta:8*C~1.0

Physical Constants:

Density: 8.08 g/cm³

Melting Point: 1357~1430 °C

Mechanical Properties (Solution Treatment):

Tensile Strength ≥ 620 MPa

Yield Strength ≥ 300 MPa

Elongation ≥ 40%

Advantages of Incoloy 20:

Incoloy20 is a corrosion-resistantalloy with many excellent properties. It offers good resistance to oxidizing and moderately reducing corrosion,and possesses excellent resistance to stress corrosioncracking(SCC) and good resistance to localized corrosion. It demonstrates satisfactory corrosionresistance in manychemical process media.

Application:

1.Storage tanks, reactors, heat exchangers, pipes, valves, pump bodies, agitator impellers

2.Reaction kettles, crystallizers, sterilization tanks, conveying pipelines, filter assemblies

3.Spray tower liners, absorbers, wastewater heat exchangers, valves and pipe fittings for desalination systems

4.Platform pipelines, heat exchangers, downhole tools, components of seawater cooling systems

5.Polymerization reaction equipment, pickling tanks, solvent storage tanks, conveying pipe fittings

Chemical Composition Wt.%:

Ni:30.0~34.0

Cr :26.0~28.0

Cu :0.6~1.4

Fe :balance

Mn: ≤2.5

C :≤0.03

Mo: 3.0~4.0

Si :≤1.0

S:≤0.03

Physical Constants:

Density: 8.00 g/cm³

Melting Point: 1370~1425 °C

Mechanical Properties (Solution Treatment):

Tensile Strength ≥ 620 MPa

Yield Strength ≥ 300 MPa

Elongation ≥ 40%

Advantages of Incoloy 28:

Incoloy 28 is a nickel-iron-chromium alloy with additions of molybdenumand copper. It exhibits excellent resistance to reducing and oxidizingacids,stress corrosion cracking (SCC),pitting,andcrevice corrosion.

 It is used inchemical processing,pollutioncon trolequipment,oilandgaspipelines,nuclearfuel reprocessing,and acid production and picklingequipment.

Application:

1.Storage tanks, reactors, heat exchangers, pipes, valves, pump bodies, agitator impellers

2.Reaction kettles, crystallizers, sterilization tanks, conveying pipelines, filter assemblies

3.Spray tower liners, absorbers, wastewater heat exchangers, valves and pipe fittings for desalination systems

4.Platform pipelines, heat exchangers, downhole tools, components of seawater cooling systems

5.Polymerization reaction equipment, pickling tanks, solvent storage tanks, conveying pipe fittings

© COPYRIGHT 2026 BY DAGU.

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