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Inconel® Alloy 601 (UNS N06601) Ni 61, Fe Bal, Cr 22, Al 1.4

Nickel, higher chromium content for better resistance to oxidizing and reducing environments; for severely corrosive environments at elevated temperatures. Good oxidation resistance to 2200 ºF. Good formability.

Instrument probes, furnace muffles, electronic components, chemical and food process equipment, heat treating equipment, nuclear steam generator tubing.

Inconel nickel-chromium-iron alloy 601 is a general-purpose engineering material for applications that require resistance to heat and corrosion. The outstanding characteristic of Inconel alloy 601 is its resistance to high-temperature oxidation. The alloy also has good resistance to aqueous corrosion, has high mechanical strength, and is readily formed, machined, and welded.
Unit of Measure

Specifications

Type

 N/A Plate

Size

 N/A 0.375 in

Alloy

 N/A 601

Physical

Density

 N/A 0.293 lb/in³

Specific Heat

 N/A 0.107 Btu/lb ºF

Electrical Resistivity

 N/A 710 ohm/cir-mil-ft

Curie Temperature

 N/A <-320 ºF

Melting Range

 N/A 2374 to 2494 ºF

Thermal Expansion Coefficient at 80 to 200 Degree Fahrenheit (ºF)

 N/A 7.6 x 10-6 in/in/ºF

Mechanical

Mechanical Type

 N/A Annealed

Tensile Strength

 N/A 80 to 100 ksi

Yield Strength

 N/A 30 to 45 ksi

Elongation

 N/A 65 to 45 %

Hardness

 N/A B60 - 75

Nominal Chemistry

Nickel (Ni)

 N/A 61

Iron (Fe)

 N/A Balanced

Chromium (Cr)

 N/A 23

Maximum Copper (Cu)

 N/A 0.5

Aluminum (Al)

 N/A 1.4

Maximum Manganese (Mn)

 N/A 1

Maximum Silicon (Si)

 N/A 0.5

Maximum Titanium (Ti)

 N/A 0.5

Maximum Carbon (C)

 N/A 0.5

General Resistance

General Resistance

 N/A Temperature Oxidation

Unified Numbering System (UNS)

 N/A N06601

Werkstof

 N/A 2.4851

Pipe/Tube USA

 N/A B167

Pipe/Tube Wkstf

 N/A 17751

Sheet/Plate USA

 N/A B168

Sheet/Plate Wkstf

 N/A 17750

Bar/Rod USA

 N/A B166

Bar/Rod Wkstf

 N/A 17752

Forging Wkstf

 N/A 17754

Weld Wire

 N/A FM 82

Weld Electrode

 N/A FM 617

Characteristics

N/A

  • The most important property of Alloy 601 is resistance to oxidation at very high temperatures up to 1250 ºC. Even under severe conditions such as, cyclical heating and cooling. This is possible due to Alloy 601 having a tightly adherent oxide layer which is resistant against spalling.
  • Resistance to carburization is good, also resistant to carbon nitriding conditions.
  • Due to high chromium and some aluminum content, good resistance in oxidizing sulfur bearing atmospheres at elevated temperatures is demonstrated.

Applications

N/A

  • Trays, baskets and fixtures used in various heat treatments such as carburizing and carbon nitriding.
  • Refractory anchors, strand annealing and radiant tubes, high velocity gas burners, wire mesh belts etc.
  • Insulating cans in ammonia reformers and catalyst support grids used in nitric acid production.
  • Thermal reactors in exhaust system of petrol engines.
  • Fabricated combustion chambers.
  • Tube supports and ash trays in the power generation industry.

Additional Information

Additional Information

 N/A The limiting chemical composition of Inconel alloy 601 is listed in table 1. The composition is a face-centered-cubic solid solution with a high degree of metallurgical stability. The alloy's nickel base, in conjunction with substantial chromium content, provides resistance too many corrosive media and high-temperature environments. Oxidation resistance is further enhanced by the aluminum content.

Gas turbine engine components: combustion chambers, and afterburners. Other uses also include: high temperature ball bearing service, springs, and heart valves.

Alloy L-605 is the strongest of the formable cobalt alloys, useful for continuous service to 1800 ºF. Because of long and widespread use, this alloy has been the subject of many investigations to determine its properties over a wide range of conditions, thus making it an unusually well characterized material. Alloy L-605 is also known as alloy 25.

When exposed for prolonged periods at intermediate temperatures, alloy L-605 exhibits a loss of room temperature ductility in much the same fashion as other super alloys, such as X or 625.

Alloy L-605 is welded using gas tungsten arc, gas metal arc, shielded metal arc, electron beam and resistance welding. Submerged arc welding is not recommended. Use good joint fit-up, minimum restraint, low inter-pass temperature and cool rapidly from welding. For maximum ductility fabricated components should be annealed 2150 - 2250 ºF, rapid cool.

Corrosion Resistance

Resistance to high temperature oxidation and carburization is good. The alloy, while not primarily intended for aqueous corrosion, is also resistant to corrosion by acids such as hydrochloric and nitric acid, as well as being resistant to wet chlorine solutions.