Inconel Alloy® 600 is a popular nickel-chromium alloy that is specially designed to be used at cryogenic temperatures and environments that need high-temperature resistance. This nickel alloy is suited for application in elevated temperatures in the range of 1093˚C /2000° F. Alloy 600 is non-magnetic and boasts of having incredible mechanical properties. It is known to feature a good combination of commendable weldability and high strength under a wide range of temperatures.

The addition of chromium in Inconel ® 600 provides it with greater corrosion resistance in acidic environments, in comparison to pure nickel.  It also enables the alloy to maintain corrosion resistance in a reducing state, as well as provide higher corrosion resistance to alkaline solutions.  The high nickel content of Alloy 600, on the other hand, offers incredible resistance to chloride stress corrosion cracking as well as various organic and inorganic compounds. This nickel alloy is used quite commonly in the electrical, aeronautical and nuclear fields, and even in the chemical and heat-treating industries. It essentially is among the standard construction materials when it comes to nuclear reactors, especially in components like steam dryers, control rod inlet stub tubes, as well as reactor vessel elements and seals.

Key characteristics of the Inconel ® 600

  • Resistance to a broad range of corrosive media: The high nickel content of this alloy provides it with superior resistance to reducing condition, while its chromium levels provide it with greater resistance than the Alloy 201 and 200 under oxidizing conditions.
  • Virtually immune to chlorine ion stress corrosion cracking: Alloy 600 is able to demonstrate good resistance to various organic acids,   including stearic, acetic and formic. It is incredible resistance to high purity water that is generally used in secondary and primary circuits of pressurized nuclear reactors.
  • High-temperature resistance: Minimal or no attack takes place at room and elevated temperatures in dry gases, which includes hydrogen chloride and chorine.  The Alloy 600 boasts of being among the most resistant of the common alloys at temperatures up to 500˚C in such media.
  • The annealed and solution annealed Inconel ® 600 additionally shows commendable resistance to scaling and has good strength at elevated temperatures. It is also able to resist nitrogen and carburizing gases, as well as ammonia bearing atmospheres.

Inconel 600 Seamless pipe Mechanical Properties:

Alloy and statetensile strength

Rm N/mm2

Yield Strength




Brinell hardness


annealing treatment55024030=195
solid solution treatment50018035=185

Inconel 600 Seamless pipe Physical Properties

Density (lb / cu. in.)0.306
Specific Gravity8.47
Specific Heat (Btu/lb/Deg F – [32-212 Deg F])0.106
Electrical Resistivity (microhm-cm (at 68 Deg F))620
Melting Point (Deg F)2550
Thermal Conductivity103
Mean Coeff Thermal Expansion5.8
Magnetic Permeability1.01
Modulus of Elasticity Tension31.1
Reduction of Area60

Inconel 600 Pipe Sizes

1/8″ IPS(.405″ O.D.)3 1/2″ IPS( 4.000″ O.D.)
SCH 40, 80SCH 10, 40, 80, 160, XXH
1/4″ IPS(.540″ O.D.)4″ IPS(4.500″ O.D.)
SCH 10, 40, 80SCH 10, 40, 80, 160, XXH
3/8″ IPS(.675″ O.D.)5″ IPS( 5.563″ O.D.)
SCH 10, 40, 80SCH 10, 40, 80, 160, XXH
1/2″ IPS(.840″ O.D.)6″ IPS(6.625″ O.D.)
SCH 5, 10, 40, 80, 160, XXHSCH 5, 10, 40, 80, 120, 160, XXH
3/4″ IPS(1.050″ O.D.)8 ” IPS(8.625″ O.D.)
SCH 10, 40, 80, 160, XXHSCH 5, 10, 40, 80, 120, 160, XXH
1″ IPS:(1.315′ O.D.)10″ IPS(10.750″ O.D.)
SCH 5, 10, 40, 80, 160, XXHSCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4″ IPS(1.660″ O.D.)12″ IPS(12.750″ O.D.)
SCH 10, 40, 80, 160, XXHSCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2″ IPS(1.900″ O.D.)14″ IPS(14.000″ O.D.)
SCH 10, 40, 80, 160, XXHSCH10 (.188), SCH40 (.375)
2″ IPS(2.375″ O.D.)16″ IPS(16.000″ O.D.)
SCH 10, 40, 80, 160, XXHSCH10(.188), SCH40(.375)
2 1/2″ IPS(2.875″ O.D.)18″ IPS (18.000″ O.D.)
SCH 10, 40, 80, 160, XXHSCH-40 (.375)
3″ IPS( 3.500″ O.D.) 
SCH 5, 10, 40, 80, 160, XXH 

Corrosion resistance

Due to the composition of Alloy 600, it has the capacity to resist a great number of corrosives. The high nickel content of this alloy provides it with commendable resistance to alkaline solutions and reducing conditions. While the chromium levels present in this alloy makes it more resistant to oxidizing conditions that the commercially pure nickel.

Hot Working/Forging

 It is recommended to use low surface reducing furnace atmospheres when forging Inconel Alloy® 600 products. Major hot working should be done between the range of 1850-2300°F, while it would be okay to continue light working as low as 1600°F. Owing to the low ductility of Alloy 600, no hot working should be tried out between 1200-1600°F.


Inconel ® 600 is known to be readily machinable in both annealed and hot-worked conditions. It is recommended to use cemented carbide or cast nonferrous when machining Alloy 600 products due to the fact that a significant amount of heat is generated in the process of machining it.  All the tools being used must also be kept sharp.

The lathe turning speeds with nonferrous and high-speed tools tend to be approximately 35/45 sfm (0.18/0.23 m/s), while the speeds in case of cemented carbide tools are around 100/175 sfm (0.51/0.89 m/s).

It is recommended to use sulphur based oils as a lubricant when machining this nickel alloy. It, however, must be removed completely as the machined part is exposed to high temperatures, such as in welding.

Cold Working

To acquire superior properties, Inconel ® 600 may be cold worked below 649°C/1200°F.


The diverse conventional welding processes can be used easily for the purpose of joining Inconel Alloy® 600.  The typical welding materials that are used to join the Alloy 600 are the following:

  • INCOFLUX 4 Submerged Arc Flux and INCONEL Filler Metal 82 for the submerged-arc process
  • INCONEL Filler Metal 82 for gas tungsten arc and gas metal-arc welding processes
  • INCONEL Welding Electrode 182 for the shielded metal-arc welding process


Forms Inconel ® 600 is commonly available 

  • Sheet
  • Plate
  • Bar
  • Pipe and Tube (welded and seamless)
  • Fittings ( which includes crosses, reducers, socket welds, elbows, tees, flanges, slip-ons, blinds, stub-ends and so on)
  • Wire


The major applications of Inconel ® 600

  • Chemical industry
  • Food processing
  • Nuclear Engineering
  • Gas turbine components
  • Aerospace
  • Heat treating industry
  • Pulp and paper industry

Alloy 600 can be quite commonly seen in heat treating and electrical industries as well.

An estimated delivery time location wise for Alloy 600 Pipe

Saudi Arabia15Qatar15
South Africa40Australia40

High praise Inconel 600 Pipe suppliers

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