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Product Introduction: High-Performance Stainless Steel Tubing - 304/304L/304LN/304H Alloys

In today's industrial landscape, the demand for high-quality stainless steel tubing has never been greater. Our 304, 304L, 304LN, and 304H stainless steel products are engineered to meet a variety of specifications, ensuring reliability and performance across diverse applications. These alloys are manufactured in compliance with ASTM and ASME standards, making them suitable for demanding environments such as food processing, pharmaceuticals, and heat exchange systems.

Physical Properties

The physical properties of our 304 series alloys are optimized for performance, ensuring they meet the high standards required in industrial applications. Here’s a closer look at the key mechanical properties in their annealed condition at temperatures from -20°F to +100°F:

• Tensile Strength:

  • 304: 75,000 psi (515 MPa)
  • 304L: 70,000 psi (485 MPa)
  • 304LN: 75,000 psi (515 MPa)
  • 304H: 75,000 psi (515 MPa)

• Yield Strength:

  • 304: 30,000 psi (205 MPa)
  • 304L: 25,000 psi (170 MPa)
  • 304LN: 30,000 psi (205 MPa)
  • 304H: 30,000 psi (205 MPa)

• Elongation: All grades offer a minimum elongation of 35% over a 2-inch length, providing excellent ductility for formability.

• Grain Size: Requirement for grain size varies, with a maximum of 7 or coarser for 304H.

Chemical Composition

The unique properties of our alloys are a result of their precise chemical composition:

• Chromium (Cr): 18.0–20.0%, which is essential for corrosion resistance.
• Nickel (Ni): 8.0–11.0%, enhancing strength and ductility.
• Carbon (C): Controlled levels with a maximum of 0.08% for 304 and 0.030% for 304L, minimizing brittleness.
• Other Elements: Manganese, Phosphorous, and Sulphur are kept at minimal levels to ensure mechanical performance and corrosion resistance.

Specifications and Range

Our stainless steel tubing complies with several international specifications, making them versatile in various applications. The product range includes:

• 304 Tubing: UNS Designation S30400, meets A249, A312 specifications.
• 304L Tubing: UNS Designation S30403, meets A270, A312 specifications.
• 304LN Tubing: UNS Designation S30453, conforms to A249, A688 standards.
• 304H Tubing: UNS Designation S30409, adheres to A249, A312 specifications.

These specifications guarantee the suitability of our tubing for applications ranging from construction to chemical processing.

Applications

Our 304 series stainless steel tubing is exceptionally versatile, making it ideal for numerous applications, including:

• Heat Exchangers and Condensers: The high-temperature resistance and strength provide optimal thermal performance.
• Food and Beverage Processing: The sanitary design and corrosion resistance ensure compliance with health regulations.
• Pharmaceuticals and BioPharmaceuticals: High purity tubing for sterile applications, critical for ensuring product integrity.
• Industrial Machinery: Suitable for hydraulic and pneumatic systems requiring robust, corrosion-resistant tubing.

Conclusion

Our 304, 304L, 304LN, and 304H stainless steel tubing products represent the pinnacle of engineering excellence and material performance. With proven physical and chemical properties, these alloys are designed to meet the stringent demands of various industries. We invite you to partner with us for your tubing needs, ensuring quality, reliability, and compliance with industry standards. Explore our product offerings today to discover the right solutions for your operational requirements.