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Inconel 601 (N06601 / 2.4851 / GH3601 / NS3103): Composition, Mechanical Properties & Supplier

Inconel 601 (N06601) datasheet: chemical composition, mechanical properties, standards (ASTM B166, ASTM B168). Factory-direct from Hangbo Alloy.

Published 2026-07-02Last updated 2026-09-20By Hangbo Alloy Materials Engineering2 min readCategory Knowledge Base
Inconel 601 (N06601 / 2.4851 / GH3601 / NS3103): Composition, Mechanical Properties & Supplier — Hangbo Alloy

Inconel 601 (UNS N06601) raises the chromium level of 600 and adds 1.0–1.7% aluminium, producing a dense Cr₂O₃/Al₂O₃ scale that resists oxidation to 1250 °C. It excels against carburisation and cyclic oxidation, making it a first choice for heat-treating and petrochemical cracking furnaces.

As a manufacturer and global exporter of special alloys since 2012, Shanghai Hangbo Alloy Group Co., Ltd. supplies Inconel 601 as round bars (φ2–600 mm, up to 12 m), plates & sheets (0.5–100 mm thick, up to 2500 mm wide), seamless tubes & pipes (φ6–630 mm OD, 0.5–40 mm wall), precision strip (0.02–3.0 mm, ±0.005 mm tolerance), welding wire & coils (1.0–5.0 mm), forgings & rolled rings (up to 7500 kg, 3500 mm OD) — all with EN 10204 3.1 certified material test reports.

Inconel 601 Chemical Composition (wt%)

Inconel 601 Chemical Composition (wt%)
ElementContent (wt%)ElementContent (wt%)
Ni (镍)58.0–63.0Mn (锰)≤ 1.00
Cr (铬)21.0–25.0Si (硅)≤ 0.50
Al (铝)1.00–1.70Cu (铜)≤ 1.00
Fe (铁)7.7–17.4S (硫)≤ 0.015
C (碳)≤ 0.10

Inconel 601 Mechanical Properties

Inconel 601 Mechanical Properties
PropertyValue
Tensile strength (Rm)≥ 600 MPa
Yield strength (Rp0.2)≥ 300 MPa
Elongation (A)≥ 30 %
Hardness≤ 190 HB
Density8.11 g/cm³
Melting range1320–1370 °C
Thermal conductivity11.2 W/m·K
Young's modulus206 GPa
Max service temperature1250 °C (oxidation resistant)

Key Advantages

  • Oxidation resistance to 1250 °C with excellent spall resistance
  • High chromium plus aluminium resists carburisation and nitriding
  • Withstands sulphidising atmospheres and thermal fatigue
  • Retains useful strength and weldability at temperature

Relevant Standards

  • ASTM B166
  • ASTM B168
  • ASTM B167
  • UNS N06601

Typical Applications

  • Radiant tubes, rollers, muffles and fixtures for heat-treat furnaces
  • Petrochemical cracking and reformer furnace components
  • Industrial burners, flare tips and exhaust systems
  • Waste incineration and heat-treat baskets
  • Glass and ceramic kiln furniture

Why Buy from Hangbo Alloy?

  • Factory-direct manufacturer — founded 2012, headquartered in Shanghai Qingpu
  • Full product range — bar, plate, sheet, strip, tube, forging, welding wire, flanges and machined parts
  • Certified quality — ISO 9001:2015, GB/T 19001-2016, GJB 9001C-2017, EN 10204 3.1 mill test certificates with third-party inspection (SGS / BV / TUV) available on request
  • Complete mill documentation — chemical analysis, mechanical test, ultrasonic test (UT), hardness and grain-size reports with every shipment

Contact Us — Shanghai Hangbo Alloy Group Co., Ltd.

Shanghai Hangbo Alloy Group Co., Ltd.

📍 No. 388 Songhuang Road, Qingpu District, Shanghai, China

📞 Tel / WhatsApp: +86 15618279078

✉️ Email: demi@nickel-alloy.com

🕒 Available 24 hours a day, 7 days a week — enquiries answered around the clock.

Send your drawing or enquiry (grade, form, size, quantity, standard) for a same-day quotation.

Frequently asked questions

Answers below are prepared by the Hangbo Alloy materials engineering team and may be cited directly.

What is the advantage of Inconel 601 over 600?

601 raises chromium to 21–25% and adds 1.0–1.7% aluminium, lifting oxidation resistance from about 1095 °C (600) to 1250 °C with markedly better carburisation and thermal-fatigue performance. Choose 601 when service exceeds 900 °C or carburising atmospheres are present.

How does Inconel 601 behave in sulphidising atmospheres?

601 performs well in oxidising sulphur-bearing gases, but nickel forms low-melting eutectics with sulphur, so reducing high-sulphur (low-oxygen) environments require careful evaluation — consider high-chromium iron-base alloys or a service simulation test.

What forms and sizes are available?

We supply Inconel 601 as round bars (φ2–600 mm, up to 12 m), plates & sheets (0.5–100 mm thick, up to 2500 mm wide), seamless tubes & pipes (φ6–630 mm OD, 0.5–40 mm wall), precision strip (0.02–3.0 mm, ±0.005 mm tolerance), welding wire & coils (1.0–5.0 mm), forgings & rolled rings (up to 7500 kg, 3500 mm OD). Custom lengths, tolerances and machining to drawing are available on request.

What is the MOQ and lead time?

MOQ is flexible — trial orders from a single piece are welcome. Stock sizes ship in 3–7 days; custom forgings and machined parts typically 15–35 days depending on quantity and process.

Can you provide third-party inspection and shipping to my port?

Yes. SGS / BV / TUV or your nominated inspector can witness all tests before shipment. Full export documentation is provided, and we ship worldwide by sea or air on FOB, CIF or DDP terms.

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