AISI 436L Stainless Steel Plate SUS436L 1.4371

Description

436L stainless steel is a low-carbon, ferritic stainless steel that is designed to offer enhanced resistance to corrosion and oxidation. This alloy is particularly well-suited for applications that require good formability and weldability, combined with improved corrosion resistance, especially in mildly corrosive environments.

Key Characteristics

Corrosion Resistance: 436L stainless steel provides excellent resistance to corrosion, particularly against stress corrosion cracking and pitting in environments that may contain chlorides.

Oxidation Resistance: The alloy offers good resistance to oxidation at elevated temperatures, making it suitable for applications involving moderate heat exposure.

Formability: 436L stainless steel is highly formable, allowing it to be easily shaped and fabricated into complex parts and structures.

Weldability: The low carbon content of 436L stainless steel enhances its weldability, reducing the risk of weld decay and maintaining strength and integrity in welded joints.

Magnetic Properties: Being a ferritic stainless steel, 436L is magnetic, which may be a consideration in applications requiring or avoiding magnetic properties.

Chemical Composition

Chromium (Cr): 16.0-18.0%

Nickel (Ni): 0.75% max

Molybdenum (Mo): 0.75-1.25%

Carbon (C): 0.03% max

Manganese (Mn): 1.00% max

Silicon (Si): 1.00% max

Phosphorus (P): 0.040% max

Sulfur (S): 0.030% max

Iron (Fe): Balance

Others: May include trace amounts of other elements to enhance specific properties.

Common Applications

Automotive Industry: Used in exhaust systems, catalytic converters, and other automotive components that require corrosion resistance and formability.

Chemical Processing Equipment: Suitable for equipment that handles mildly corrosive chemicals, offering durability and resistance to corrosion.

Architectural Applications: Applied in building facades, trim, and other decorative elements due to its aesthetic appearance and corrosion resistance.

Heat Exchangers: Utilized in heat exchangers and other components that operate at elevated temperatures, taking advantage of its oxidation resistance.

Advantages

Enhanced Corrosion Resistance: Offers excellent resistance to corrosion, especially in environments with chloride exposure.

Good Oxidation Resistance: Suitable for use in applications involving moderate heat, thanks to its resistance to oxidation.

High Formability: Easily shaped and formed into complex structures, making it versatile for a wide range of applications.

Excellent Weldability: The low carbon content reduces the risk of weld decay, ensuring strong and reliable welded joints.

Disadvantages

Magnetic Properties: The ferritic nature of 436L stainless steel makes it magnetic, which may or may not be desirable depending on the application.

Moderate Strength: Compared to other stainless steels, 436L may have lower strength, which could limit its use in high-stress applications.

Summary

436L stainless steel plate/sheet is a versatile, low-carbon ferritic stainless steel alloy that combines excellent corrosion and oxidation resistance with good formability and weldability. It is particularly well-suited for applications in the automotive industry, chemical processing, architectural elements, and heat exchangers. While its magnetic properties and moderate strength may be considerations in some applications, its overall performance makes it a reliable choice for environments where corrosion resistance and formability are critical.