Understanding the Composition and Performance of X2CrNiN1810 Steel

1. Specification:

– X2CrNiN1810 is a stainless steel grade that falls under the European standard EN 10088-2. It is also known as AISI 304LN in the American standard.
– The steel is classified as an austenitic stainless steel and is highly corrosion resistant.
– X2CrNiN1810 has a nominal composition of 0.02% carbon, 18-19% chromium, 8-10% nickel, and 0.14-0.20% nitrogen.
– It is commonly used in applications that require good corrosion resistance, such as chemical processing, food industry, and pharmaceutical equipment.
– The mechanical properties of X2CrNiN1810 steel include a tensile strength of 530-750 MPa, yield strength of 280-320 MPa, and elongation of 45-55%.

2. Mechanical Properties:

– Tensile Strength: X2CrNiN1810 steel has a high tensile strength ranging from 530 to 750 MPa. This property makes it suitable for applications that require strength and durability.
– Yield Strength: The yield strength of X2CrNiN1810 steel is between 280 and 320 MPa. This property indicates the point at which the steel begins to deform permanently under applied stress, and it determines the stress levels the steel can withstand without permanent deformation.
– Elongation: X2CrNiN1810 steel has an elongation of 45-55%, which indicates its ability to undergo plastic deformation before fracture. This property is important for applications that require the steel to be bent or shaped without breaking.

3. Chemical Composition:

– Carbon (C): X2CrNiN1810 steel contains a very low carbon content of 0.02%. This low carbon content enhances its resistance to corrosion and reduces the risk of sensitization and intergranular corrosion.
– Chromium (Cr): The steel has a chromium content of 18-19%. Chromium forms a passive oxide layer on the surface of the steel, which provides excellent corrosion resistance and protects the underlying structure from further oxidation and deterioration.
– Nickel (Ni): X2CrNiN1810 steel has a nickel content of 8-10%. Nickel improves the steel’s resistance to corrosion and provides increased strength and toughness. It also helps in maintaining the austenitic structure at low temperatures.
– Nitrogen (N): The steel contains 0.14-0.20% nitrogen. Nitrogen improves the steel’s pitting resistance, creep strength, and toughness. It also helps in stabilizing the austenitic structure and prevents the formation of harmful intermetallic phases.

Overall, X2CrNiN1810 steel is an austenitic stainless steel with excellent corrosion resistance and good mechanical properties. Its composition, including low carbon, high chromium and nickel, and the presence of nitrogen, contributes to its performance in various applications.
X2CrNiN1810 Steel grade
1698867818

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