Chemical Composition and Mechanical Properties of Austenitic 201LN (S20153) Stainless Steel

Chemical Composition:

Mechanical Properties:

Applications and Industries Using 201LN Stainless Steel Plates and Coils

201LN stainless steel is commonly used in:

1. Transportation industry: Railroad freight cars, truck trailers, and coal handling equipment
2. Cryogenic applications: Storage tanks, pressure vessels, and piping for liquefied gases
3. Structural components: High-performance welded structures, especially for sub-zero temperatures
4. Food processing equipment
5. Automotive industry: Exhaust systems and trim pieces

Manufacturing Process and Available Dimensions

Manufacturing Process: Hot rolled or cold rolled, followed by annealingAvailable Dimensions:

Corrosion Resistance and Low-Temperature Performance

201LN stainless steel offers:

• Good resistance to general corrosion, comparable to Type 304
• Excellent toughness at low temperatures, with increasing yield and tensile strengths as temperatures decrease
• Suitable for service temperatures ranging from -80°F to -320°F (-62°C to -196°C)

Welding and Fabrication Considerations

201LN stainless steel can be welded using standard fusion and resistance welding methods. However, it may be at risk for cracking at weld joints and sensitization on mechanical properties in certain environments.

Comparison of 201LN with Other Austenitic Stainless Steel Grades

201LN offers similar performance to 304 grade in low corrosion applications, with some advantages:

• Higher strength than 304, allowing for potential weight reduction through thinner material use
• Lower nickel content, providing more stable pricing

• Superior mechanical properties, especially at low temperatures

At HL Steel Company, we provide high-quality Austenitic 201LN (S20153) stainless steel plates and coils, ensuring optimal performance and cost-effectiveness for your industrial applications.