Inconel 600 ® Nickelvac 600 ®, Ferrochronin 600

Inconel 600 ® is a standard engineering material and has a great resistance to heat and corrosion. Inconel 600 ® also has high strength and can be easily formed. Inconel 600 ® can be hardened and strengthened only by cold work. Inconel 600® can be used in the heat-treating industry for muffles, furnace components, and for heat-treating baskets and trays.

Inconel 600 are oxidation and corrosion resistant materials ideal for extreme environments. Inconel 600 when heated forms a thick, stable, passivating oxide layer protecting the surface from further attack. Inconel 600 retains strength over a wide temperature range, attractive for high temperature applications where aluminum and steel would succumb to creep as a result of thermally-induced crystal vacancies. High temperature strength of Inconel 600 is developed by solid solution strengthening or precipitation strengthening.

Inconel 600 is a difficult metal to shape and machine using traditional techniques due to rapid work hardening. After the first machining pass, work hardening tends to plastically deform either the workpiece or the tool on subsequent passes. For this reason, age-hardened Inconels such as 718 are machined using an aggressive but slow cut with a hard tool, minimizing the number of passes required. Alternatively, the majority of the machining can be performed with the workpiece in a solutionised form, with only the final steps being performed after age-hardening. External threads are machined using a lathe to “single point” the threads, or by rolling the threads using a screw machine. Holes with internal threads are made by welding or brazing threaded inserts made of stainless steel. Cutting of plate is often done with a waterjet cutter. Internal threads can also be cut by single point method on lathe, or by threadmilling on a machining center. New whisker reinforced ceramic cutters are also used to machine nickel alloys. They remove material at a rate typically 8 times faster than carbide cutters.

Welding Inconel 600 is difficult due to cracking and microstructural segregation of alloying elements in the heat affected zone. The most common welding method is gas tungsten arc welding. New innovations in pulsed micro laser welding have also become more popular in recent years.

Inconel 600 is often encountered in extreme environments. It is common in gas turbine blades, seals, and combustors, as well as turbocharger rotors and seals, electric submersible well pump motor shafts, high temperature fasteners, chemical processing and pressure vessels, heat exchanger tubing, steam generators in nuclear pressurized water reactors, natural gas progressing with contaminants such as H2S and CO2, firearm sound suppressor blast baffles, and Formula One and NASCAR exhaust systems. Inconel 600 is increasingly used in the boilers of waste incinerators.

Available forms are Inconel 600 Seamless Pipe,Inconel 600 Welded Pipe,Inconel 600 Seamless Tube,Inconel 600 Welded Tube,Inconel 600 Round Bars,Inconel 600 Wire,Inconel 600 Sheet,Inconel 600 Plate, Inconel 600 Forgings,Inconel 600 Pipe Fittings and Inconel 600 Flanges.

Chemical Analysis of ALLOY 600 (UNS N06600)

0.08 max

0.03 max

0.25 max

0.015 max


0.30 max


 Sheet / Plate  ASME SB-265 / AMS 4902
 Round Bar  ASME SB-348 / ASTM F-67 / AMS 4921
 Pipe  ASME SB-337 / ASME SB-338
 Tube  ASME SB-337 / ASME SB-338 / AMS 4942
 Fittings  ASME SB-363
 Forgings  ASME SB-381

Mechanical Properties-Typical room temperature Tensile Properties of Annealed Material

Product Form Condition Tensile (ksi) .2% Yield (ksi) Elongation (%) Hardness (HRB)
Rod & Bar Cold-Drawn 80-100 25-50 35-55 65-85
Rod & Bar Hot-Finished 80-100 30-50 35-55 65-85
Tube & Pipe Hot-Finished 75-100 25-50 35*55
Tube & Pipe Cold-Drawn 80-100 25-50 35-55 88 max
Plate Hot-Rolled 80-105 30-50 35-55 65-85
Sheet Cold-Drawn 80-105 30-45 35-55 88 max