Inconel alloy 600/UNSN06600/W.Nr. 2.4816 bar Tube Strip Wire Sheet

Overview

INCONEL (nickel-chromium-iron) alloy 600 (UNSN06600/W.Nr. 2.4816) is a standard engineering material for applications which require resistance to corrosion and heat. The alloy also has excellent mechanical properties and presents the desirable combination of high strength and good workability.

The high nickel content gives the alloy resistance to corrosion by many organic and inorganic compounds and also makes it virtually immune to chloride-ion stress-corrosion cracking.Chromium confers resistance to sulfur compounds and also provides resistance to oxidizing conditions at high temperatures or in corrosive solutions. The alloy is not precipitation hardenable; it is hardened and strengthened only by cold work.

The versatility of INCONEL alloy 600 has led to its use in a variety of applications involving temperatures from cryogenic to above 2000°F (1095°C).

Limiting Chemical Composition, %

Nickel (plus Cobalt)..............................................................................................................................................................72.00 min.

Chromium...........................................................................................................................................................................14.00-17.00

Iron........................................................................................................................................................................................6.00-10.00

Carbon ....................................................................................................................................................................................0.15 max.

Manganese ............................................................................................................................................................................1.00 max.

Sulfur.....................................................................................................................................................................................0.015 max.

Silicon......................................................................................................................................................................................0.50 max.

Copper......................................................................................................................................................................................0.50 max.

Physical Constants

Mechanical properties

In the annealed condition, the alloy exhibits moderate yield strengths of 25,000 to 50,000 psi (172 to 345 MPa). Yield strengths in that range, combined with elongations of 55 to 35%, permit the alloy to be fabricated with little difficulty. Heavily coldworked material, however, can have tensile strengths as high as 220,000 psi (1517 MPa).

Tensile-properties

Corrosion Resistance

Inconel Alloy 600 is a nickel-based superalloy with excellent high temperature strength, corrosion resistance and excellent mechanical properties. The corrosion resistance of this alloy is one of its important characteristics, making it widely used in many highly corrosive environments.

The corrosion resistance of Inconel Alloy 600 is due to its chemical composition and microstructure. The alloy contains high concentrations of nickel (Ni) and chromium (Cr), which play an important role in resisting corrosive media such as oxidizing and reducing acids and chlorides. In addition, the chromium content of the alloy also gives it the ability to form a self-protective oxide film in an oxidizing environment.

Inconel Alloy 600 offers high corrosion resistance in a variety of corrosive media. For example, at room temperature and high temperature, the alloy has good corrosion resistance to nitric acid, sulfuric acid, hydrochloric acid, alkali solution and chloride. In addition, it also shows good corrosion resistance in reducing acids (such as hydrofluoric acid) and strong oxidizing acids (such as nitric acid).

In addition to chemical media, Inconel Alloy 600 also exhibits excellent corrosion resistance in high-temperature and high-pressure water vapor. The alloy also has good corrosion resistance in wet chlorine gas, hypochlorite and seawater. However, in highly oxidizing environments, such as high concentrations of chlorine or mixtures of high-temperature and high-pressure water vapor and chlorine, Inconel Alloy 600 May exhibit localized corrosion.

In general, the corrosion resistance of Inconel Alloy 600 is mainly influenced by its chemical composition, microstructure and environmental factors. By optimizing the composition and structure of the alloy, as well as selecting the appropriate environmental conditions, the corrosion resistance can be further enhanced.

Heat Treatment

Inconel Alloy 600 is a nickel-based superalloy with excellent mechanical properties and high-temperature resistance. Thermal treatment is a critical step in optimizing the alloy's performance, and this article provides an overview of the thermal treatment process of Inconel Alloy 600.

Solution treatment is the first step in the thermal treatment process of Inconel Alloy 600. The goal of this treatment is to dissolve the alloying elements fully into the gamma phase, resulting in a single, homogeneous gamma phase matrix. This homogeneous matrix provides improved mechanical properties and resistance to high-temperature oxidation.

Solution treatment is typically performed at a temperature between 950°C and 1050°C for a duration of 1 to 2 hours. After heating, the alloy is rapidly quenched to room temperature to prevent the formation of detrimental phases.

Ageing treatment is the second step in the thermal treatment process of Inconel Alloy 600. This treatment promotes the precipitation of strengthening phases, such as gamma prime (γ') and carbides, within the gamma phase matrix. The ageing treatment significantly improves the alloy's strength and hardness.

Ageing treatment is typically performed at a temperature between 600°C and 750°C for a duration of 1 to 2 hours. The precise temperature and duration are determined based on the desired mechanical properties and microstructure of the alloy.

Annealing treatment can be used to recover the ductility of Inconel Alloy 600 that might have been lost during the previous thermal treatment steps. Annealing treatment removes residual internal stresses and improves the alloy's overall toughness and fatigue resistance.

Annealing treatment is typically performed at a temperature between 900°C and 1050°C for a duration of 1 to 2 hours. The goal is to balance the need for improved ductility without significantly reducing the strength achieved during the previous thermal treatment steps.

In summary, the thermal treatment process of Inconel Alloy 600 is crucial for optimizing its performance. Through appropriate thermal treatment, the alloy's microstructure can be modified to enhance mechanical properties, toughness, and resistance to high-temperature oxidation. In practical applications, the optimal thermal treatment parameters should be selected based on specific service conditions and requirements to achieve the optimal performance of Inconel Alloy 600.

Available Forms

We provide you with a variety of product forms, including but not limited to

● Bar & Rod

● Pipe & Tube

● Coil & Strip

● Plate & Sheet & Circle

● Wire & Welding

● Fitting (Flange, Elbow, Tee...)

● Customize