UNS Number N06601

Inconel 601 is a nickel-chromium alloy used for applications that require resistance to corrosion and heat. This nickel alloy stands out due to its resistance to high temperature oxidation, remaining highly resistant to oxidation through 2200° F. Alloy 601 develops a tightly adherent oxide scale which resists spalling even under conditions of severe thermal cycling. This nickel alloy has good high temperature strength, and retains its ductility after long service exposure. It has good resistance to aqueous corrosion, high mechanical strength, and is readily formed, machined and welded. Inconel 601’s properties make it a material of broad utility in fields like thermal processing, chemical processing, pollution control, aerospace, and power generation. However, alloy 601 is not suggested for use in strongly reducing, sulfur bearing environments.

Available Forms of Inconel 601 at Rooplaxmi Steels:

•           Bar
•           Sheet
•           Plate
•           Pipe & Tube (welded and seamless)
•           Pipe Fittings
•           Wire

Characteristics of Inconel 601:

•           Outstanding oxidation resistance to 2200° F
•           Resists spalling even under severe thermal cycling conditions
•           Highly resistant to carburization
•           Good creep rupture strength
•           Metallurgical stability

Inconel 601 Chemical Composition, %:

Ni	Cr	Al	C	Mn	Si	Fe
61.5	22.5	1.4	0.05	0.3	0.2	14

 

Application of Inconel 601:

•           Chemical Processing
•           Aerospace
•           Heat treating industry
•           Power generation
•           Heat treating muffles and retorts
•           Radiant tubes
•           Catalyst support grids in nitric acid production
•           Steam superheater tube supports

Machining and Fabrication with Inconel 601:

Inconel 601 can be machined using conventional machining methods which are used for iron-based alloys.Machining operations are performed using commercial coolants. High-speed operations such as grinding, milling or turning, are performed using water-based coolants. Heavy lubricants are used for tapping, drilling, boring, or broaching.It is formed using all conventional techniques. It is welded using gas-tungsten arc welding, gas metal-arc welding, shielded metal-arc welding, and submerged-arc welding methods. It does not respond to heat treatment. Inconel 600 is forged at 1038 to 1233°C (1900 to 2250°F). It is hot worked at 872 to 1233°C (1600 to 2250°F). It can be cold formed using standard tooling. Inconel 601 is annealed at 1149°C (2100°F). It is then cooled at temperatures ranging from 538 to 760°C (1000 to 1400°F) in order to prevent thermal cracking. It can be hardened only by cold working.

Inconel 601 ASTM Specification:

Pipe Smls	Pipe Welded	Tube Smls	Tube Welded	Sheet / Plate	Bar	Forging	Fitting
B167	B517	B167	-	B168	B166	B564	B366

Welding Wire Designations:
EN ISO 18274 – Ni6601, NiCr23F15Al

Mechanical Properties of Inconel 601:

Typical room temperature Properties

Tensile Strength	80,000 psi
Yield	30,000 psi
Elongation	35 %