Views: 19 Author: Wang Publish Time: 2025-01-27 Origin: Site
Incoloy alloy 825 (UNS N08825) is an austenitic nickel-iron-chromium alloy with additions of molybdenum, copper and titanium. It was developed to provide exceptional corrosion resistance in both oxidizing and reducing environments. This nickel alloy is resistant to chloride stress-corrosion cracking and pitting.
The addition of titanium helps stabilize Incoloy alloy 825. This prevents sensitization in the as-welded state.
As a result, the alloy resists intergranular attack. It can withstand temperatures that would sensitize unstabilized stainless steels. Incoloy alloy 825 is made like other nickel-base alloys. The material is easy to shape and weld using different methods.
Incoloy 825 is highly resistant to corrosion. It has a high nickel content.
This helps it resist chloride ion stress corrosion cracking. It also has a very stable austenite structure. The levels of molybdenum and copper enable the alloy to resist reducing agents and acids.
Chromium gives resistance to oxidizing conditions, such as nitric acid solutions, nitrates and oxidising salts. The alloy is titanium-stabilized to prevent pitting and intergranular attack after it is made. This is very important during welding. Welding involves heating to a critical temperature range of 650°C to 760°C.
Incoloy 825 plate is a module made from nickel, iron, chromium with small additions of copper, molybdenum, and titanium. The Incoloy 825 Plate shows enhanced resistance against corrosion and oxidation across different environmental conditions. The high-end Inconel 825 Plate modules have great resistance to localized damage. This includes crevice corrosion and pitting caused by acids.
Mills process an 825 Inconel Hot Rolled Plate at high temperatures. The Inconel Alloy 825 Cold Rolled Plate is processed after hot-rolling. This gives it great hardness and better properties. It also has a superior surface finish.
Incoloy 825 sheet is flexible at different temperatures. It can handle very low temperatures up to 1000 degrees Celsius. It is easy to work with, so Inconel 825 sheet can be welded and shaped without difficulty.
Inconel 825 plate is an alloy made of 74% nickel, 15.5% chromium, and 8.0% iron. It also has copper, molybdenum, and titanium. This mix gives the alloy strong heat resistance.
The Werkstoff Nr. 2.4858 plate contains chromium, molybdenum, and nickel. These elements make the alloy very resistant to chloride stress cracking and pitting.
For this reason, UNS N08825 plate can be used in high-chloride-containing environments, e.g., seawater. In an annealed condition, the yield strength of UNS N08825 is about 310 MPa, while its hardness value is 35 Rockwell.
On the other hand, Inconel 825 plate has a melting range of 1370℃ - 1400℃. The impact strength of Inconel 825 plate is good at both room and cryogenic temperatures.
However, this strength decreases significantly when the alloy is exposed to high temperatures above 540°C. At high temperatures, Alloy 825 plate changes its structure. This change causes a brittle phase to form.
JN Alloy aims to provide the best quality Incoloy 825 sheet plate on time and with excellent finishing. We use the latest technology and machines to make these plates. This helps us offer high-quality Incoloy 825 sheet plates. With strict quality testing and supervision, we ensure to provide these plates with excellent dimensional accuracy.
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ASME/ASTM Name | ASTM B424 / ASME SB 424 |
Incoloy 825 Plate size in mm | 2000 mm x 4000 mm, 1220 mm x 2440 mm, 1000 mm x 2000 mm, 2000 mm x 2000 mm, 1500 mm x 3000 mm, |
Thickness of Standard Plate | 0.1 to 12 mm Thick |
Most Frequently Used Form | Strip, Flats, Rolls, Ring (Flange), Coils, Foils, Shim Sheet, Blank (Circle), Plain Sheet |
Incoloy 825 Plate Different Finish | Cold rolled sheet (CR), 2B, Hot rolled plate (HR), BA NO(8), SATIN (Met with Plastic Coated), 2D, |
Hardness Range | Half Hard, Soft, Quarter Hard, Spring Hard, Hard etc |
The creation of Incoloy 825 Plate starts with selecting top-quality raw materials, followed by advanced metallurgical processes. The manufacturing typically involves either the electric furnace or the blast furnace method, followed by vacuum oxygen decarburization. This step is crucial for refining the alloy and ensuring its purity, which is vital for achieving the desired properties.
The heat treatment of Incoloy 825 Plate is an important step in its production. This process improves its resistance to corrosion and its mechanical properties.
The alloy is heated to high temperatures for solution annealing. This process dissolves precipitated phases and creates a uniform structure. After that, a stabilization anneal is done at about 940°C.
This step helps prevent intergranular corrosion. This process is essential for maintaining the integrity of the alloy when exposed to corrosive environments.
Once heat-treated, Incoloy 825 Plate is shaped and processed mechanically. This includes hot working, done at temperatures between 870°C and 1180°C.
This process shapes the alloy while keeping its strength and resistance to corrosion. The final hot working is best done between 870°C and 980°C. This keeps the alloy's structure stable. Rapid cooling methods, such as air cooling or quenching, are employed post-hot working to prevent any sensitization.
Incoloy 825 Plate is easy to machine with standard techniques, making it versatile for various applications. Optimal machining characteristics are achieved in the annealed temper. For forming operations, both hot and cold methods are applicable, with specific temperature controls ensuring the desired mechanical properties.
It is best to heat the alloy between 930°C and 980°C. Then, cool it quickly. This process helps keep the alloy strong against corrosion.
Incoloy 825 plate is widely used in the oil and gas industry. It is known for its great resistance to corrosion. The alloy can handle both oxidizing and reducing conditions. This makes it great for many uses in this field.
Incoloy 825 plate is commonly employed in downhole tubing, casing, and wellhead components. These applications require materials that can withstand the extreme conditions of deep wells, such as sour gas and seawater. The alloy resists stress-corrosion cracking, pitting, and crevice corrosion. This helps ensure the downhole equipment lasts longer and works reliably.
The offshore oil and gas industry benefits from Incoloy 825 plate. It has great resistance to marine environments. This makes it perfect for piping systems, risers, and heat exchangers. These components fight against the harmful effects of seawater and tough extraction chemicals.
Incoloy 825 plate is highly valued in the chemical processing industry for its ability to withstand aggressive chemical environments. Its outstanding resistance to sulfuric and phosphoric acids makes Incoloy 825 ideal for acid production and handling.
Incoloy 825 plate is used in pickling tank heaters and other equipment in the pickling process. This process treats metals with acid solutions to remove impurities. The alloy can resist intergranular corrosion. It also keeps its strength under acidic conditions, which is important for these uses.
In the power generation industry, Incoloy 825 plate is used in nuclear and fossil fuel plants. It is chosen for its strength at high temperatures and its ability to resist corrosion. The alloy’s versatility allows it to perform reliably in various demanding environments within power generation facilities.
Incoloy 825 plate is used in marine parts like exhaust systems and propeller shafts. It is also used in aerospace applications.
The alloy is often used in heat exchangers, extraction columns, mixing tanks, pipes, pumps, and valves. It offers reliable performance and lasts a long time in these important industrial parts.
