Alloy 600 / UNS N06600


Alloy 600 is a nickel-chromium-iron, solid solution strengthened alloy used for applications that require corrosion and high temperature resistance. Service temperatures for Alloy 600 can be from cryogenic to 2000°F. Application of the alloy is useful in the chemical, pulp and paper, aerospace and heat treating industries to name a few.

Fabrication and Heat Treatment

Alloy 600 can both hot formed and cold form using typical processes. Hot working should be performed between 1600°F and 2250°F avoiding any work between 1200°F and 1600°F as the ductility decreases in this temperature range. The cold work hardening rate is less than that of 304 stainless steel yet higher than that of mild steel. Welding Alloy 600 can be achieved via shielded metal-arc welding using AWS ENiCrFe-3 electrode. Filler metal AWS ERNiCr-3 can be used when TIG and MIG welding. Alloy 600 is slightly more machinable compared to 304 stainless steel and should be performed with tools large enough to handle the loads. Typical of other nickel alloys, heavy-duty equipment should be used along with sharp tooling and more than adequate cooling. Annealing of Alloy 600 without excessive grain growth can be performed at 1850°F for 15 minutes at temperature. Fine grain material typically has better corrosion resistance as well as higher tensile, fatigue and impact properties.

Resistance to Corrosion

With 72% minimum nickel, this alloy is resistant
to many organic and inorganic compounds
and provides good resistance in reducing conditions. Another advantage due to its high nickel content is a lower predisposition for stress corrosion cracking in the annealed condition.
The chromium in the alloy offers high temperature resistance to sulfur compounds as well as resistance to oxidizing compounds at elevated temperatures or in corrosive media. Also, Alloy 600 has excellent resistance to alkalies and is one of the few materials suitable for use in strong solutions of magnesium chloride at elevated temperatures. Typical corrosion in MgCl2 is roughly 1 mpy. When applicable, material for severe service should be fully stress relieved prior to use.


N06600, ASTM B517, ASME SB517, ANNEALED, MERCURY FREE, EN 10204-3.1, ASTM B366, ASME SB366, WPNCI-S, ASME B16.11, ASTM B166, ASME SB166, ASTM B564/ASME SB564

 Common Trade Names

INCONEL® alloy 600

INCONEL® is a registered trademark of the Special Metals Corporation group of companies.

Data Sheet

Chemical Composition:

Element Nickel + Cobalt Carbon Silicon Iron Copper Manganese Chromium
Avg. Nominal % 72.0 Min 0.15 Max 0.50 Max 6.0 - 10.0 1.0 Max 1.0 Max 14.0 - 17.0

Standard Products

Alloy 600 Plate

Alloy 600 Fittings

Alloy 600 Tube

Alloy 600 Pipe

Alloy 600  Bar

Alloy 600 Sheet

Alloy 600 Fasteners

Alloy 600 Flanges

Alloy 600 Welding Product

Alloy 600 Coil

Alloy 600 Plate Shapes

Alloy 600 Custom Profiles

Alloy 600 Forgings

Alloy 600 Machined Parts

Alloy 600 Welded Components