X2CrNi19-11 is a stainless steel grade known for its excellent corrosion resistance and good mechanical properties. This grade is often used in applications where high corrosion resistance and good mechanical properties are required. Here is a detailed introduction to X2CrNi19-11:
Chemical Composition
The chemical composition of X2CrNi19-11 is as follows:
- Carbon (C): ≤ 0.03%
- Silicon (Si): ≤ 1.00%
- Manganese (Mn): ≤ 2.00%
- Phosphorus (P): ≤ 0.045%
- Sulfur (S): ≤ 0.015%
- Chromium (Cr): 17.00 – 19.00%
- Nickel (Ni): 9.00 – 12.00%
Mechanical Properties
- Yield Strength (Rp0.2): ≥ 190 MPa
- Tensile Strength (Rm): 500 – 700 MPa
- Elongation (A): ≥ 40%
- Hardness: ≤ 215 HB
Characteristics
- Corrosion Resistance:
- X2CrNi19-11 has excellent corrosion resistance in a wide variety of environments, including atmospheric and aqueous conditions. Its low carbon content reduces the risk of carbide precipitation during welding, which can enhance its resistance to intergranular corrosion.
- Mechanical Properties:
- This grade offers good mechanical properties, including high tensile strength and good elongation, making it suitable for forming and welding.
- Weldability:
- X2CrNi19-11 is easily weldable by most standard welding methods, including TIG, MIG, and resistance welding. The low carbon content helps in maintaining corrosion resistance in welded joints.
- Formability:
- The material has good formability and can be easily formed into various shapes and sizes without significant work hardening.
- Temperature Resistance:
- It maintains good mechanical properties and corrosion resistance up to moderately high temperatures.
Applications
X2CrNi19-11 is widely used in various industries due to its excellent properties. Common applications include:
- Chemical and Pharmaceutical Industry: Used in the manufacture of equipment and containers that handle corrosive substances.
- Food and Beverage Industry: Used for processing equipment and storage tanks where hygiene and corrosion resistance are critical.
- Automotive Industry: Employed in the production of exhaust systems and catalytic converters.
- Medical Industry: Used for surgical instruments and medical implants due to its biocompatibility and corrosion resistance.
- Architectural Applications: Utilized in building facades, railings, and other decorative elements where aesthetic appearance and durability are important.
Standards and Designations
X2CrNi19-11 is known by several standards and designations, including:
- EN 1.4306: European standard designation.
- AISI 304L: Similar to the American standard designation, though with slight variations in chemical composition.
- UNS S30403: Unified Numbering System designation.
Summary
X2CrNi19-11 is a versatile stainless steel grade offering excellent corrosion resistance, good mechanical properties, and ease of fabrication and welding. Its applications span across multiple industries where these properties are essential.
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