Inconel 825 Tubes Enhanced Corrosion Resistant Tubes With Adequate Strength

Various industrial processes require different kinds of stainless steel alloys. The alloys are used for their unique properties and characteristics that provide them with the unique behavior required for sustaining and running industrial processes. Inconel 825 tubes are the more modern stainless steel alloy tubes that have wide application in various industrial processes and better corrosion resistance. The alloy can handle all kinds of corrosions like crevice, a pittance, general and other corrosions and is also not corroded by the high power acids. Hence, the alloy is a much sought after material that is much in demand in industrial processes that run throughout the world in different industrial segments. Below are listed the unique characteristics of the Inconel 825 tubes and alloy. Go through them to know more about the alloy and to decide whether it suits your industrial process or not.

Composition of Inconel Alloy Grade 825

The Inconel 825 alloy is composed of nickel, iron and chromium, three substances that provide it adequate strength for surviving heat and other kinds of temperature variations. It also contains copper and molybdenum and has better corrosion resistance because of these metal additions. The tubes can resist crevice, a pittance, and stress corrosion and can also resist the acidic forms of corrosion like phosphoric acid corrosion and sulphuric acid corrosion, pickling equipment, acid production plants, etc.

Equivalent materials

Other materials with equal composition and properties include AWS 022, UNS N08825, and W.NR 2-4858. They are also available in pipe and fittings form.

Heat treatment

The alloy can be annealed between temperature ranges 1700 to 1800 degree Fahrenheit. Annealing at 1800 degree Fahrenheit provides a fine grain texture and enhances softness without compromising with the corrosion resistance properties of the metal alloy. 1725 degree Fahrenheit is the temperature for optimal stabilizing of the alloy. The surface contaminants have to be removed before commencing on the annealing process.

Composition of Inconel 825 Grade alloy

The nickel strength of the alloy pipes varies from 38 to 46%. Iron strength is 22% (can be higher). Chromium strength varies from 19.5% to 23.5%, molybdenum from 2.5 to 3.5%, copper from 1.5 to 3% and titanium from 0.6 to 1.2%.

Properties of Inconel 825 Grade Alloy

The density of the alloy is 8.14 gram per centimeter cube. The melting point of the alloy is 1400 degree Celsius, Coefficient of expansion is 14 micrometer per meter degree centigrade. Modulus of rigidity is 75.9 kilo Newton per millimeter square and modulus of elasticity is 190 kilo Newton per millimeter square.

Applications of Inconel Grade 825 tube and alloy

Inconel tubes and alloys have applications in areas like plants for reprocessing of nuclear fuel and in chemical processing. They are used in scrubbers for flue gas, oil well, and sour gas parts and in industries of paper production. The alloy also finds place in equipment that are used for handling coal washing, sludge, and refinery

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