SS GRADE 321 / EN 1.4541 / DIN X6CRNITI18-10 / UNS S32100

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Introduction

Stainless Steel Grade 321 is a versatile and widely used material known for its excellent properties and performance in various industrial applications. As an advanced version of the 304 grade, SS 321 incorporates added elements that enhance its characteristics, making it suitable for more demanding environments. In this article, we will explore the key features of SS 321, its benefits, and the industries where it plays a critical role.

Key Features of SS Grade 321

1. Enhanced Corrosion Resistance

One of the standout features of SS 321 is its superior resistance to intergranular corrosion. The addition of titanium stabilizes the alloy, preventing chromium carbide formation at high temperatures, which is a common issue in SS 304.

2. Excellent High-Temperature Performance

SS 321 maintains its mechanical properties and resists oxidation at temperatures up to 900°C (1652°F). This makes it an ideal choice for applications involving high heat.

3. Improved Weldability

The titanium addition also reduces the risk of weld decay, enhancing the material’s weldability and making it easier to work with in fabrication processes.

4. Good Mechanical Properties

SS 321 offers a good balance of strength and ductility, ensuring that it can withstand the mechanical stresses encountered in various applications.

5. Chemical Stability

This grade exhibits stability in a wide range of chemical environments, including acidic and alkaline solutions, enhancing its durability and lifespan in aggressive conditions.

Applications of SS Grade 321

1. Aerospace Industry

In the aerospace sector, SS 321 is used for manufacturing exhaust systems, manifolds, and other high-temperature components due to its excellent thermal resistance and strength.

2. Petrochemical Industry

The material’s resistance to corrosion and high temperatures makes it suitable for use in the petrochemical industry, particularly in heat exchangers, pressure vessels, and chemical processing equipment.

3. Automotive Industry

SS 321 is employed in the automotive industry for exhaust components and catalytic converters, where it can withstand the corrosive and high-temperature conditions typical of engine systems.

OUR SCOPE:

METCORE ALLOYS keep stock in SS grade 321 as raw material in sheet, plate, coil/slit coil, round bar, pipe, etc. Service to PAN INDIA AND EXPORT to most of the countries with competitive rate and great service and quality products.

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