Explore the different finishes of 904L stainless steel sheet and their industrial applications. Learn how stainless steel 904L plates are used in chemical, oil & gas, food, and architectural industries.

The 904L stainless steel sheet is a high-alloy austenitic stainless steel known for its excellent corrosion resistance. It is especially useful in environments where strong acids and high chloride levels are present. One of the key features of this steel is its surface finish, which can vary depending on the application. Each finish has its own benefits and is selected based on the industrial need.

Common Finishes of 904L Stainless Steel Sheet

1. No. 1 Finish (Hot Rolled, Annealed, Pickled)

   • This is a rough, dull surface finish.

   • It is mainly used where appearance is not important.

   • Common in industrial tanks and piping systems.

2. 2B Finish (Cold Rolled, Annealed, Pickled, Skin Passed)

   • This finish is smooth and reflective.

   • It is commonly used for general-purpose applications.

   • Ideal for chemical equipment and storage tanks.

3. BA Finish (Bright Annealed)

   • It has a bright, mirror-like surface.

   • Used when appearance is important.

   • Found in cleanroom equipment, food industry, and medical tools.

4. No. 4 Finish (Brushed Finish)

   • This finish has a fine polishing pattern.

   • Often used in decorative and architectural applications.

   • It also works well in food processing and pharmaceutical setups.

Industrial Applications of Stainless Steel 904L Plates

• Chemical Processing Industry
  Stainless steel 904L plates are widely used in chemical plants due to their resistance to strong acids like sulfuric acid and hydrochloric acid.

• Oil and Gas Industry
  These sheets and plates are ideal for offshore platforms and refineries because they can handle salty and corrosive environments.

• Pharmaceutical and Food Industry
  The smooth surface finish ensures hygiene and easy cleaning, making them suitable for cleanrooms, processing machines, and storage units.

• Power Plants and Heat Exchangers
  The high strength and corrosion resistance of 904L stainless steel sheet make it perfect for boilers, condensers, and heat exchangers.

• Architectural and Decorative Use
  Some finishes like No. 4 or BA are chosen for their good appearance and are used in wall cladding, elevators, and other decorative elements.

Conclusion
Choosing the right finish for a 904L stainless steel sheet is important for getting the best performance and appearance in different industries. Whether you need corrosion resistance, hygiene, or a clean look, there’s a finish that fits your need. The strength and quality of stainless steel 904L plates make them a reliable choice for many industrial applications.