Inconel 601 (UNS N06601 / W.Nr. 2.4851) Nickel-Chromium-Iron Alloy Ring & Hollow Bar

• Inconel 601 solid‑solution nickel‑chromium‑iron alloy ring & hollow bar, UNS N06601 / W.Nr 2.4851, conforms to ASTM B409 / ASTM B564 standards
• Aluminum‑modified Ni‑Cr‑Fe formulation; forms stable Al₂O₃+Cr₂O₃ dual‑oxide scale, outstanding cyclic oxidation resistance up to 1200 °C
• Excellent resistance to carburizing, nitriding atmospheres and thermal‑cycling spallation for furnace and thermal‑process equipment
• High nickel matrix delivers good chloride stress‑corrosion‑cracking(SCC) resistance for mixed high‑temp & moderate aqueous corrosive environments
• Non‑hardenable via quenching or aging; supplied in solution‑annealed quenched soft state for CNC turning, boring and machining
• Custom OD, ID, wall‑thickness, height / length; full CNC machining for rings and hollow‑bar components per CAD/PDF drawings
• Premium raw stock for industrial furnace rings, radiant tube blanks, heat‑treatment fixtures, petrochemical thermal hardware and thermal‑oxidizer internals

This series of Inconel 601 rings and hollow bars are manufactured by hot forging / hot piercing, followed by solution annealing and rapid water quenching to achieve homogeneous single‑phase austenitic microstructure. Standard delivery is solution‑annealed soft blank ready for rough‑and‑finish CNC machining.

Inconel 601 (UNS N06601 / 2.4851) is aluminum‑bearing nickel‑chromium‑iron solid‑solution alloy. The addition of aluminium promotes formation of adherent dual‑layer alumina‑chromia protective scale, delivering far superior cyclic oxidation‑spallation performance compared to Inconel 600 under repeated heating‑cooling conditions. It also performs well in carburizing and nitriding furnace atmospheres. Note that Inconel 601 is primarily engineered for high‑temperature gaseous service and is not optimized for heavy aqueous acid corrosion. Widely processed into furnace retaining rings, radiant tube segments, heat‑treatment fixture rings, petrochemical thermal‑reactor internals and incinerator hardware for industrial furnaces, petrochemical, waste‑to‑energy and thermal‑processing industries.

• Solid‑solution‑strengthened nickel‑chromium‑iron alloy, cannot gain hardness through quenching or aging heat‑treatment
• Al‑Cr composite system forms tightly‑adhered Al₂O₃+Cr₂O₃ protective scale; excellent cyclic oxidation resistance up to 1200 °C, strong resistance to oxide‑scale spallation under thermal cycling
• Good performance in carburizing and nitriding furnace atmospheres; prevents internal material embrittlement in carbon‑rich high‑temperature environments
• High‑nickel matrix provides reliable chloride SCC resistance for high‑temperature brine‑contact mixed service conditions
• Good ductility and fabricability in solution‑annealed condition; compatible with conventional TIG/MIG welding; post‑weld solution‑annealing is recommended for heavy thermal‑cycling assemblies
• Reminder: Not designed for sustained heavy mineral‑acid immersion corrosion; primary application targets high‑temperature gaseous environments

• Inconel Series: 600, 601, 625, 718, X‑750
• Incoloy Series: 800, 800H, 800HT, 825, 925
• Hastelloy Series: C‑4, C22, C276, B3
• Heat‑Resistant Stainless: 253MA, 310S, 309S
• Super‑Austenitic: 904L, 254SMO
• Duplex / Super Duplex: 2205, S32750, S32760
• PH Stainless Steel: 17‑4PH,15‑5PH
• Alloy Steel:4140, F22, F91, A105

1 Superior Cyclic Oxidation‑Spallation Resistance Aluminum‑chromium dual‑protective‑oxide layer delivers outstanding anti‑spalling performance under repeated heating‑cooling cycles, reliable long‑term service up to 1200 °C, out‑performs Inconel 600 in thermal‑cycling furnace environments.

2 Excellent Anti‑Carburization & Anti‑Nitriding Performance Resists carbon / nitrogen atomic penetration, prevents material embrittlement for carburizing‑furnace and ammonia‑nitriding thermal‑process hardware.

3 Good Chloride SCC Resistance High‑nickel‑base microstructure mitigates chloride‑stress‑corrosion‑cracking risk for components subject to mixed high‑temperature‑gas plus brine‑condensation conditions.

4 Good Fabrication Compatibility Solution‑annealed condition provides good ductility for turning, boring, milling and forming; post‑weld solution‑annealing recommended for components under severe thermal‑cycling load.

5 Cost‑Effective High‑Temperature Furnace Alloy Competitive choice for furnace rings, radiant‑tube blanks compared to higher‑grade superalloys for non‑heavy‑acid high‑temperature‑gas working conditions.

• Industrial Heat‑Treatment Furnace: Furnace retaining rings, fixture support rings, radiant‑tube hollow‑bar blanks, muffle‑component preforms
• Waste‑To‑Energy Incineration: High‑temp flue‑gas exposed ring segments, thermal‑oxidizer internals, incinerator hardware blanks
• Petrochemical Thermal‑Process: Reactor thermal‑zone hollow‑bar liners, high‑temperature process‑equipment ring forgings
• Heat‑Processing Equipment: Carburizing / nitriding furnace hardware, high‑temp atmosphere‑furnace structural ring components
• Power‑Plant Thermal‑System: Boiler high‑temperature support rings, waste‑heat‑recovery hollow‑bar component blanks

We provide integrated hot‑forging / hot‑pierced hollow‑bar & ring production, full custom CNC machining per customer CAD/PDF drawings:

• Cut‑to‑length / ring height sizing, facing, centering, OD turning, ID boring, chamfering
• Precision threading, groove machining, cylindrical grinding & surface polishing for ring / hollow‑bar parts
• Technical consultation for Inconel 601 welding procedure and high‑temperature furnace‑material grade‑selection guidance
• Pickling, passivation anti‑corrosion surface finishing

We supply Inconel 601 ring forgings, hollow‑bar blanks and fully‑machined components for furnace, petrochemical, waste‑incineration and global industrial clients.

• 100% UT ultrasonic + eddy‑current inspection for forging / piercing internal segregation, inclusion and surface crack defects
• Full‑batch tensile, yield, elongation mechanical‑property testing for each heat lot
• Spectrometer full‑spectrum chemical‑composition verification per heat number (strict check for critical Al‑Cr‑Ni elements)
• Metallographic homogeneous austenite‑matrix microstructure inspection, verify absence of harmful precipitated phases
• High‑precision micrometer & CMM inspection for OD, ID, wall‑thickness, height / length and dimensional‑tolerance control

Mill Test Certificate EN 10204 3.1 can be issued and delivered together with shipment documents before delivery.

Packing ‑ Inner: Independent anti‑rust plastic sleeve + waterproof film full wrap for ring / hollow‑bar surface scratch protection ‑ Outer: Reinforced fumigated wooden pallet / wooden case with separation blocks to avoid collision & deformation ‑ Custom heavy‑duty export packaging for large‑diameter rings & heavy‑wall hollow bars available upon request

Lead Time Normally 20‑60 working days after receiving advance payment. Exact lead time depends on ring / hollow‑bar dimension, wall‑thickness, order quantity and custom‑machining demands.

Please specify part type (ring / hollow bar), OD‑ID‑wall‑thickness‑dimension, drawings and whether you require raw forging blank or fully‑machined finished parts. Our nickel‑alloy metallurgy team will provide competitive factory price within 24 hours. Free high‑temperature‑furnace material‑matching technical consultation!