Nickel-based super alloy: Inconel 601 (Alloy 601/UNS N06601)

What is Inconel 601?

Inconel 601 (UNS N06601) nickel base alloy with 21.0-25.0% chromium and about 72% nickel content, and Inconel 601 (UNS n06601) nickel base alloy has strong oxidation resistance, high temperature resistance and corrosion resistance. It also has high mechanical properties at high temperature. Inconel 601 (UNS n06601) nickel base alloy has high high temperature strength, excellent oxidation resistance, carburizing resistance and sulfur resistance. Especially in the environment of rapid temperature change and repeated oxidation, it has excellent peel resistance. Therefore, it is widely used in various heat treatment furnace components, diesel vehicle glow plug components and so on.
Designated as UNS N06601 or W.Nr. 2.4851, Inconel 601 (also called “Alloy 601”) is a nickel-chromium-iron alloy with an addition of aluminum for outstanding resistance to oxidation, and other forms of high-temperature corrosion as well as improved nitriding resistance. It also has high mechanical properties at elevated temperatures. Inconel 601 may be used for industrial furnaces, heat-treating equipment such as baskets, muffles, and retorts, strand-annealing tubes, petrochemical and other process equipment, burner nozzles, gas turbine equipment, superheater tube supports & grid barriers of power plant piping, etc.

astm b167 n06601 smls pipe od192 - Nickel-based super alloy: Inconel 601 (Alloy 601/UNS N06601)

ASTM B167 Gr. N06601 seamless pipe. 192 mm(o.d) x 3 mm(w.t) x 6 m(length).

The recent supply of a batch of Inconel 601 seamless pipes made to ASTM B167 UNS N06601 for a chemical project in UAE. Specification: outside diameter = 192 mm, wall thickness = 3 mm, single length = 6 meters.

Characteristics of Inconel 601 (Alloy 601/UNS N06601)

  • (1) Excellent oxidation resistance at high temperature.
  • (2) Good carbonization resistance.
  • (3) Very good resistance to oxidation sulfur atmosphere.
  • (4) Good mechanical properties at room temperature and high temperature.
  • (5) Good resistance to stress corrosion cracking performance,due to the control of the carbon content and grain size,601 has high creep rupture strength,therefore it is recommended to use 601 in the field of above 500℃.

Corrosion resistance of Inconel 601 (Alloy 601/UNS N06601):

  • Oxidation resistance up to 1180℃. Even in very harsh conditions, such as in the process of heating and cooling cycle.
  • Can generate a dense layer of oxide film and get high resistance to spalling.
  • Good resistance to carbonation.
  • Since the high content of chromium, aluminum, alloy has the very good oxidation resistance in high temperature sulfur atmosphere.

Chemical Composition of Inconel 601 (Alloy 601/UNS N06601)

C

Cr

Ni

Fe

Cu

Mn

Al

Si

S

≤0.10

21.0-25.0

58.0-63.0

balance

≤1.0

≤1.0

1.0-1.7

≤0.50

≤0.015

Mechanical Properties of Inconel 601 (Alloy 601/UNS N06601) at room temperature

Condition

Tensile strength ( MPa)

Yield strength
( MPa)

Elongationj
( %)

Brinell Hardness
(HB)

Annealing

650

300

30

Solution treatment

600

240

30

≤220




forged inconel 601 r26 ring gasket - Nickel-based super alloy: Inconel 601 (Alloy 601/UNS N06601)

ASME B16.20 R26 Inconel 601 ring gasket

Physical Properties of Inconel 601 (Alloy 601/UNS N06601)

Density
(g/cm3)

Thermal conductivity
(W(m•℃))

Melting point
(℃)

Elastic modulus
(GPa)

Thermal expansion coefficient
(24-100°C)10-6×m/m °C

Operating temperature
(°C )

Hardness
(HRC)

8.11

12.7

1360~1411 

124.7-206.5 13.75 -200~+400

65-95

Product Forms and Standards

Product Forms Standards
Rod, Bar & Wire ASTM B166
Plate, Sheet & Strip ASTM B168, ASTM B906
Seamless Pipe and Tube ASTM B167, ASTM B829
Welded Pipe ASTM B775
Welded Tube ASTM B751

Processing heat treatment of Inconel 601 (Alloy 601/UNS N06601):

Inconel 601 (UNS n06601) nickel base alloy is not a precipitation hardening alloy, so it can not be age hardened by heat treatment. When the temperature reaches 900 ℃ after cold working, the material will soften. If the material needs high temperature strength, the solution heat treatment at 1100 ~ 1200 ℃ is recommended. At this time, the cooling method is water cooling, and air cooling can also be used according to the plate thickness. However, in order to avoid carbide precipitation, it is recommended to cool as soon as possible in the temperature range of 500 ~ 800 ℃.

Processability of Inconel 601 (Alloy 601/UNS N06601):

Inconel 601 (UNS n06601) nickel base alloy is easy to hot work. The heating temperature is 1150 ~ 1200 ℃, and the hot working temperature is 1050 ~ 1200 ℃. The simple processing can be carried out below 850 ℃. Cracking will occur in the temperature range of 650 ~ 850 ℃, please avoid this temperature range for processing. In order to avoid carbide precipitation, it is suggested to increase the cooling rate in the range of 500 ~ 800 ℃. 601 alloy has excellent cold workability and can be processed as SUS 310S and alloy800.  

Heating pipes, containers, baskets and chains used in sulfuric acid pickling plants.Application areas of nickel-based alloy incoloy 601 (Alloy 601/UNS N06601):

  • Heat treatment factories with tray,basket and fixture.
  • Steel wire annealing and radiant tube, high-speed gas burner,the mesh belt furnace.
  • The ammonia reforming in the isolation tank and the catalytic support grid for production of nitric acid.
  • Exhaust system components.
  • Piping system.
  • The solid waste incinerator combustion chamber.
  • Pipe supports and ash handling part.
  • Exhaust detoxification system components.
  • Oxygen to the heater.
  • Heat exchange tubes
  • Pipe fittings
  • Flanges
  • Valves

Variety specifications and supply status of Nickel-based super alloy: Inconel 601 (Alloy 601/UNS N06601):

Variety classification:

Yaang Pipe Industry can produce various specifications of Inconel601 seamless pipe, Inconel601 steel plate, Inconel601 round bar, Inconel601 forgings, Inconel601 flangeInconel601 pipe fittings, Inconel601 welded pipe, Inconel601 steel strip, Inconel601 wire and supporting welding materials. 

Delivery status:

  • Seamless pipe: solid solution + acid white, length can be set;
  • Plate: solid solution, pickling, trimming;
  • Welded pipe: solid solution acid white + RT% flaw detection;
  • Forging: annealing + car polish; Bars are forged and rolled, surface polished or car polished;
  • Strips are delivered after cold rolling, solid solution soft state, and deoxidized;
  • Wire rods are finely ground in solid solution pickled disk or straight strips, solid solution straight strips Delivery in light state.

Source: China Inconel 601 Flanges Manufcturer – Yaang Pipe Industry (www.steeljrv.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

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Summary
nickel based super alloy incoloy 800 uns n08800 w nr 1 4876 - Nickel-based super alloy: Inconel 601 (Alloy 601/UNS N06601)
Article Name
Nickel-based super alloy: Incoloy 601 (Alloy 601/UNS N06601)
Description
Inconel 601 (UNS N06601) nickel base alloy with 21.0-25.0% chromium and about 72% nickel content, and Inconel 601 (UNS n06601) nickel base alloy has strong oxidation resistance, high temperature resistance and corrosion resistance.
Author
Publisher Name
www.steeljrv.com
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