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The X2CrNi189 steel grade, also known as 1.4307 or AISI 304L, is a versatile and widely used stainless steel. Its key properties, applications, and industries that use this steel grade are as follows:
1. Mechanical Properties:
– Tensile Strength: The minimum tensile strength of X2CrNi189 steel is 520 MPa.
– Yield Strength: The minimum yield strength of this steel grade is 210 MPa.
– Elongation: X2CrNi189 steel has a minimum elongation of 45%.
– Hardness: The maximum hardness for this steel grade is 215 HB.
2. Chemical Composition:
– Chromium (Cr): The main alloying element in X2CrNi189 steel, it provides excellent corrosion resistance and enhanced strength.
– Nickel (Ni): This element improves corrosion resistance, ductility, and toughness of the steel.
– Carbon (C): The carbon content in X2CrNi189 steel is limited to 0.03%, ensuring good weldability while maintaining corrosion resistance.
– Manganese (Mn): Enhances the formation of austenite in the steel structure, improving the overall strength and work-hardening behavior.
3. Applications:
– X2CrNi189 is commonly used in various industries, including chemical processing, food and beverage processing, pharmaceuticals, and petrochemicals.
– Due to its good corrosion resistance, it is suitable for applications in environments containing sulfuric acid, acetic acid, and other corrosive chemicals.
– It is widely used for manufacturing equipment such as heat exchangers, pressure vessels, tanks, pipelines, and fittings for handling corrosive liquids and gases.
– X2CrNi189 is also used in the automotive, construction, and architectural industries for applications such as structural components, decorative trims, and exhaust systems.
In summary, the X2CrNi189 steel grade possesses excellent mechanical properties, including high tensile and yield strengths, along with good elongation and hardness values. With its chemical composition, it offers superior corrosion resistance in various environments. This makes it a preferred choice for industries that require a strong, corrosion-resistant steel for manufacturing equipment and structures exposed to corrosive substances.