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Inconel 601(UNS N06601,2.4851) is a nickel-chromium alloy, it is highly resistant to oxidation through 2200°F. Alloy 601 alloy gives outstanding resistance to hot corrosion resistance under oxidizing conditions. The most important property of Inconel 601 is resistance to oxidation at very high temperatures up to 1250°C.
Even under severe conditions such as, cyclical heating and cooling. This is possible due to Inconel 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.
Grade | C≤ | Mn≤ | Si≤ | S≤ | Cu≤ | Fe | Ni | Cr | Al |
Inconel 601 | 0.10 | 1.0 | 0.5 | 0.015 | 1.0 | Remainder | 58.0-63.0 | 21.0-25.0 | 1.0-1.7 |
Mechanical properties | Tensile, min, ksi[MPa] | Yield, min, ksi[MPa] | Elongation, %(min) |
Alloy 601 | 80[550] | 30[205] | 30 |
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
Inconel 601 | 2.4851 | N06601 | NCF 601 | NA 49 | XH60BT | NC23FeA | NiCr23Fe |
Product | Standard | Show |
Inconel 601 Bars | ASTM B166 AMS 5665 Din 17752 |  |
Inconel 601 Sheets | ASTM B168 AMS 5540 Din 17750 |  |
Inconel 601 Plates | ASTM B168 AMS 5540 Din 17750 |  |
Inconel 601 Tubes | ASTM B163 |  |
Inconel 601 Pipes | ASTM B474 |  |
Inconel 601 Fittings | ASTM B366 |  |
Inconel 601 Forgings | ASTM B564 Din 17754 |  |
Alloy 601 in Aerospace
Used for blades and safety rings of gas turbines, lining of combustion tanks, igniters, seals and burners and diffuser assemblies for jet engines.
Alloy 601 in the field of power generation
Inconel alloy 601 is also used in ash treatment systems, power grid barriers and superheater tube brackets in the power generation industry.
Application of Alloy 601 in Petrochemical Industry
Inconel alloy 601 is used in the manufacture of air preheater and catalyst regenerator for polyethylene in petrochemical processing plants.
Alloy 601 in hot working equipment
In industrial furnaces, Cr-Ni-Fe 601 is used for a variety of applications, such as radiation tubes, flame shields, retorts, chain curtains, burner nozzles, stranded annealing tubes, braided wire conveyors and resistance heating elements. They can also be used in thermal applications such as furnace generators, infrared radiation screens and thermocouple protection tubes. Industrial thermal applications, such as pallets and fixtures, can also make use of Inconel alloy 601.
Alloy 601 in pollution control device
Inconel alloy 601 can also play a role in exhaust systems and thermal reactors of gasoline engines.
Q1: How to weld Inconel 601 effectively?
A: Inconel 601 / UNS N06601 requires welding procedures to maintain its oxidation resistance:
GTAW/TIG welding with ERNiCrMo-3 filler (AWS A5.14) for optimal pitting resistance.
JN welding alloy 601 is supplied from the same melt batch to prevent galvanic corrosion. The interpass temperature is ≤150℃ and argon shielding gas is used to prevent carbide precipitation.
Q2: Is Inconel 601 magnetic?
A: Inconel 601 is non-magnetic in the annealed condition, per ASTM B168/B167. But, cold working may induce slight magnetic permeability due to strain hardening.
Full non-magnetic properties are restored after solution annealing at 1150°C.
Q3: What P-Number is Inconel 601 for welding qualification?
A: Inconel 601 is classified under P-Number 43 in ASME Section IX.
We supply ASME-compliant materials with PQR support.
