Alloy 600 / UNS N06600 / W.Nr. 2.4816

Inconel 600


Inconel 600 (UNS N06600) is a nickel-chromium alloy that offers a unique combination of outstanding corrosion resistance, oxidation resistance, and high-temperature strength. This versatile material is widely used in the chemical, aerospace, and nuclear industries, where reliability and durability are paramount. In addition to Inconel 600, there are other Inconel grades that cater to specific applications, such as Inconel 625 (UNS N06625), Inconel 718 (UNS N07718), and Inconel X-750 (UNS N07750).

Inconel 600, an exceptional high-performance alloy, has earned a reputation for its excellent resistance to corrosion and high-temperature applications. This ultimate guide will provide a comprehensive overview of Inconel 600’s properties, applications, and how it outshines other materials in various industries. Learn everything you need to know about this remarkable alloy and why it’s a top choice for demanding environments, along with insights into other related grades like Inconel 625, Inconel 718, and Inconel X-750.

Alloy 600 Inventory

Product Form Size range from Size range to

Alloy 600 pipe

0.5 in 8 in

Alloy 600 tube

12 mm 260 mm

Alloy 600 pipe fittings

0.5 in 8 in

Alloy 600 flanges

0.5 in 8 in

Industries and Applications

Aerospace Industry: Inconel 600 is widely used in aircraft components, including jet engine exhaust systems, afterburner parts, and high-temperature engine components. Its excellent temperature resistance ensures the longevity and reliability of these critical parts.

Chemical Processing: The alloy’s corrosion resistance makes it ideal for equipment used in chemical processing plants, including heat exchangers, evaporators, and reactors. Inconel 600 can withstand the harsh chemical environments found in these applications.

Power Generation: Inconel 600 is used in nuclear reactors, steam generators, and superheaters for its exceptional resistance to high temperatures and corrosive environments.

Heat-Treating Equipment: This alloy’s ability to maintain its strength at high temperatures makes it perfect for various heat-treating equipment, such as retorts, muffles, and conveyor belts. 

Key Properties of Inconel 600

Exceptional Corrosion Resistance: Inconel 600 is highly resistant to a wide range of corrosive environments, including alkaline solutions, sulfur compounds, and chloride-ion stress-corrosion cracking. Its chromium content imparts superior resistance to both oxidizing and reducing conditions, making it a preferred choice for challenging environments.

Impressive High-Temperature Strength: The alloy can withstand temperatures up to 2000°F (1093°C) while maintaining its mechanical properties. This strength makes it an ideal material for applications where high temperatures are encountered, such as heat-treating equipment, furnace components, and jet engines.

Excellent Weldability: Inconel 600 exhibits excellent weldability and can be readily joined using conventional welding techniques, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and shielded metal arc welding (SMAW).

Superior Oxidation Resistance: This alloy’s high chromium content enables it to form a stable oxide layer, which provides excellent resistance to oxidation at high temperatures. This property is vital in applications like gas turbines and chemical processing equipment.

Fabrication and Heat Treatment 

Inconel 600 is not easy to work with, but with appropriate method and tooling, fabrication can be successful. Some popular method for Inconel 600 fabrication include:

Welding: Inconel 600 can be weld using Tungsten Inert Gas (TIG), Metal Inert Gas (MIG), and shielded metal arc welding (SMAW) techniques. When welding, it important to choose correct filler metal, such as Inconel 82, for best result.

Forming: Forming Inconel 600 can be challenging, as it is strong and hard metal. But, with right temperature and slow speed, cold or hot forming can be done. Annealing must happen after forming to relieve stress and make material more stable.

Machining: Machining Inconel 600 require special tools and technique. Using high-speed steel or cobalt tool, with slow cutting speed and hard lubricant, can help in machining process. It important to control temperature and avoid work hardening.

Heat Treatment of Inconel 600 Heat treatment help improve mechanical property and stability of Inconel 600. Some common heat treatment method include:

Annealing: Annealing Inconel 600 done by heating metal to temperature between 1700-1900°F (925-1040°C). Hold it at this temperature for time, then cool down in furnace or air. This process help to relieve stress and make material more ductile.

Stress Relieving: Stress relieving perform after welding, forming, or machining to reduce residual stress in metal. To do this, heat Inconel 600 to 1100-1500°F (590-815°C) and hold for 1 hour per inch of thickness. Then, cool in air or furnace.

Aging: Aging Inconel 600 can improve hardness and strength. To age, heat material to 1325°F (720°C) and hold for 16 hours, then cool in air.

Inconel 600 – Applicable Specifications

Form ASTM ASME Other

Inconel 600 Plate & Sheet

B168 SB168 NACE MR0175/ISO 15156

Inconel 600 Bar

B166 SB166 NACE MR0175/ISO 15156

Inconel 600 Pipe & Tube

B167 SB167 NACE MR0175/ISO 15156

Inconel 600 Forging

B564 SB564 NACE MR0175/ISO 15156

Inconel 600 Wire

B166 SB166 NACE MR0175/ISO 15156

Common Trade Names

The registered trademark for Inconel 600 is INCONEL® and it’s produced by the Special Metals Corporation group of companies.

Key Properties

(in annealed condition)

Tensile strength: 80.00 – 100.00
Yield strength: 25.00 – 50.00
Elongation: 55.00 – 35.00%
Hardness: 88.00


Chemical Composition (%)

Element Alloy 600
(Ni + Co) 72.0 min
(Cr) 14.0 to 17.0
(Fe) 6.00 to 10.00
(Mn) 1.00 max
(Si) 0.50 max
(Cu) 0.50 max
(C) 0.15 max
(S) 0.015 max


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