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00Cr17Ni14Mo2 Chemical Composition

00Cr17Ni14Mo2 Chemical Composition

Chromium (Cr): Chromium is the main alloying element in stainless steel and plays a vital role in the corrosion resistance of stainless steel. In 00Cr17Ni14Mo2,

Chromium (Cr): Chromium is the main alloying element in stainless steel and plays a vital role in the corrosion resistance of stainless steel. In 00Cr17Ni14Mo2, the chromium content is usually between 16% and 19%. The chromium content in this range can form a dense oxide film, thereby improving the corrosion resistance of stainless steel.
Nickel (Ni): Nickel is another important alloying element that can improve the strength and toughness of stainless steel, while also helping to improve its corrosion resistance. In 00Cr17Ni14Mo2, the nickel content is usually between 8% and 14%.
Molybdenum (Mo): The addition of molybdenum can further improve the corrosion resistance of stainless steel, especially the resistance to pitting and crevice corrosion in chloride environments. In 00Cr17Ni14Mo2, the molybdenum content is usually between 2% and 3%.
In addition, 00Cr17Ni14Mo2 also contains a small amount of other elements, such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), etc., and the content of these elements has strict requirements to ensure the performance and quality of stainless steel.

The specific chemical composition is as follows (please note that different sources may give slightly different numerical ranges):

Element Content Range (%)
Chromium (Cr) 16.0~19.0
Nickel (Ni) 8.0~14.0
Molybdenum (Mo) 2.0~3.5
Carbon (C) ≤0.03
Silicon (Si) ≤1.00
Phosphorus (P) ≤0.20
Sulfur (S) ≤0.15
Selenium (Se) 0.15~0.35 (mentioned in some sources)
Iron (Fe) Remainder

stainless steel processing

The manufacture of stainless steel involves a series of processes. First, the steel is melted, and then it is cast into solid form. After various forming steps, the steel is heat treated and then cleaned and polished to give it the desired finish. Next, it is packaged and sent to manufacturers, who weld and join the steel to produce the desired shapes.

Melting and Casting
Melting and Casting

The raw materials that constitute a stainless steel item are placed together and melted in a giant electric furnace. Intense heat is applied rigorously for a period of 8 to 12 hours during this step. Once the melting is complete, the molten steel is cast into desired semi-finished forms. Some of the most common forms or shapes include slabs, blooms (rectangular shapes), billets (these could either be round or square), rods, and tube rounds.

Forming
Forming

In the second stage, the semi-finished steel shapes undergo a series of forming operations. For instance, the stainless steel is hot rolled (heated and passed through enormous rolls). The blooms and billets mentioned above are converted to bar and wire. The slabs on the other hand are formed into plates, strips or sheets. It is very common to turn semi-finished steel shapes into bars, as it is the most versatile stainless steel form (it comes in all grades and sizes). You have round, square, octagonal, and hexagonal bars, each suitable for a different type of application.

Heat Treatment
Heat Treatment

The various stainless steel forms undergo a thorough annealing process during this step. Annealing is another name for heat treatment where the stainless steel is heated and cooled in a controlled environment. The purpose of this heat treatment is to relieve the pent-up stress inside the stainless steel and soften the material to make it more suitable for a wide variety of applications. The people in charge of carrying out the annealing process have to be very careful about the conditions as even the slightest of changes in the temperature, pressure, duration, or cooling rate could result in a faulty product.

Descaling
Descaling

During the annealing process, a certain amount of scale appears on the surface of the stainless steel. This scale can be removed using a number of different processes that are collectively known as descaling. Pickling is one of the more common methods of carrying out the descaling process.

Cutting
Cutting

The semi-finished, heat-treated, and descaled stainless steel forms are cut into specific shapes in this step. Mechanical cutting is performed with the aid of guillotine knives, blanking, nibbling, and high-speed blades.

Finishing
Finishing

Finishing is applied to help the stainless steel product achieve its signature aesthetically appealing appearance. Finishes are also needed to make the stainless steel product smooth and easier to clean, which is a top requirement in sanitary applications.

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