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Hastelloy® Alloy X (HX) (UNS N06002) Ni 47.5, Cr 21.8, Fe 18.5, Mo 9.

Excellent high temperature strength and oxidation resistance to 2200 ºF. Excellent forming and welding characteristics. Resistance to oxidizing, reducing, and neutral atmospheres. Resistant to SCC in petrochemical applications. Good ductility after prolonged service temperatures of 1200, through 1600 ºF for 16,000 hours.
Gas turbine combustion cans and ducting, heat-treating equipment, spray bars, flame holders, furnace rolls, furnace baffles, and flash drier components.
Unit of Measure

Specifications

Process

 N/A Forged

Alloy

 N/A HX

Physical

Density

 N/A 0.305 lb/in³

Specific Heat

 N/A 0.100 Btu/lb ºF

Electrical Resistivity

 N/A 680.9 ohm/cir-mil-ft

Melting Range

 N/A 2300 to 2470 ºF

Thermal Expansion Coefficient at 79 to 200 Degree Fahrenheit (ºF)

 N/A 7.7 x 10-6 in/in/ºF

Mechanical

Mechanical Type

 N/A Annealed

Tensile Strength

 N/A 115 ksi

Yield Strength

 N/A 50 ksi

Elongation

 N/A 45.5 %

Hardness

 N/A B90

Nominal Chemistry

Nickel (Ni)

 N/A Balanced

Iron (Fe)

 N/A 18.5

Chromium (Cr)

 N/A 21.8

Cobalt (Co)

 N/A 1.5

Tungsten (W)

 N/A 0.6

Molybdenum (Mo)

 N/A 9

Manganese (Mn)

 N/A 0.5

Silicon (Si)

 N/A 0.5

Carbon (C)

 N/A 0.1

Other

 N/A 0.1

General Resistance

General Resistance

 N/A Temperature Oxidation

Unified Numbering System (UNS)

 N/A N06002

Werkstof

 N/A 2.4665

Sheet/Plate USA

 N/A AMS 5536 B435

Bar/Rod USA

 N/A AMS 5754 B472

Forging USA

 N/A B564

Weld Wire

 N/A A5.14 ERNiCrMo-2

Weld Electrode

 N/A A5.11 ENiCrMo-2

Applications

N/A The alloy finds use in petrochemical process equipment and gas turbines in the hot combustor zone sections. Also used for structural components in industrial furnace applications because of the excellent oxidation resistance.

Hastelloy® alloy X is recommended especially for use in furnace applications because it has unusual resistance to oxidizing, reducing, and neutral atmospheres. Furnace rolls made of this alloy were still in good condition after operating for 8700 hours at 2150 ºF. Furnace trays, used to support heavy loads, have been exposed to temperatures up to 2300 ºF. in an oxidizing atmosphere without bending or warping. Alloy X is equally suitable for use in jet engine tailpipes, afterburner components, turbine blades, nozzle vanes, cabin heaters, and other aircraft parts. Gas turbine combustion cans and ducting, heat-treating equipment.

Alloy X has wide use in gas turbine engines for combustion zone components such as transition duct, combustor cans, spray bars and flame holders as well as in afterburners, tailpipes and cabin heaters. It is recommended for use in industrial furnace applications because it has unusual resistance to oxidizing, reducing and neutral atmospheres. Furnace rolls of this alloy were still in good condition after operating for 8700 hours at 2150 ºF (1177 ºC). Hastelloy® alloy X is also used in the chemical process industry for retorts, muffles, catalyst support grids, furnace baffles, tubing for pyrolysis operations and flash drier components.

Additional Information

Additional Information

 N/A A wrought nickel base alloy with excellent high temperature strength and oxidation resistance. All of the product forms are excellent in terms of forming and welding. Although this alloy is primarily noted for heat and oxidation resistance it also has good resistance to chloride stress-corrosion cracking and has good resistance to carburization, excellent resistance to reducing or carburizing atmospheres. Alloy X is one of the most widely used nickel base super alloys for gas turbine engine components.

AMS 5754 has no yield or tensile strength requirements, but it does require a hardness maximum and stress rupture minimums. Strong and Oxidation Resistant to 2200 ºF (1200 ºC) - Hastelloy® alloy X is a solid solution strengthened grade has good strength and oxidation resistance up to 2200 ºF (1200 ºC).