Overview

Stainless steel tubing is a critical component of HPLC and UHPLC systems, providing a durable, chemically resistant flow path capable of operating under elevated pressures. Proper tubing selection helps maintain system performance, minimize downtime, and ensure safe operation.

Among the most common considerations when selecting tubing are internal diameter, wall thickness, pressure capability, and compatibility with the intended application.

Pressure Rating

Stainless steel tubing with a 0.020 inch internal diameter (ID) has a maximum pressure rating of:

15,800 psi

This pressure rating makes the tubing suitable for demanding HPLC and many high-pressure chromatographic applications where system pressures can vary significantly depending on column dimensions, particle size, solvent composition, and flow rate.

Factors Affecting Pressure Performance

Actual operating pressure depends on several variables, including:

• Tubing internal diameter
• Tubing outer diameter
• Wall thickness
• Tubing material
• Solvent viscosity
• Operating temperature
• Flow rate
• Column backpressure

Pressure ratings should not be interpreted as recommended operating pressures. Routine operation below the maximum rating is typically preferred to maximize safety and component longevity.

Applications

0.020" ID stainless steel tubing is commonly used for:

• HPLC systems
• UHPLC systems
• Detector connections
• Pump-to-injector plumbing
• Column connections
• High-pressure fluid transfer applications

The tubing provides excellent mechanical strength and resistance to deformation under elevated pressure conditions.

Selecting the Proper Tubing

When choosing stainless steel tubing, consider:

• Required operating pressure
• Flow requirements
• Dead volume considerations
• Chemical compatibility
• Instrument configuration

Selecting tubing with an appropriate pressure rating helps maintain reliable system operation and reduces the risk of leaks or component failures.

Key Takeaways

• 0.020" ID stainless steel tubing has a maximum pressure rating of 15,800 psi.
• Pressure capability depends on tubing dimensions and operating conditions.
• Stainless steel tubing is suitable for high-pressure chromatography applications.
• Proper tubing selection helps maintain system reliability and safety.
• Operating conditions should always remain within component specifications.

Additional Resources

• For additional pressure ratings and tubing specifications, refer to the Maximum Pressure Tolerance Chart for HPLC Tubing Products.
• For Stainless Steel HPLC Tubing Specifications, Available Dimensions, Pressure Ratings, Product Images, and Ordering Information, view Stainless Steel HPLC Tubing Specifications, Available Dimensions, Pressure Ratings, Product Images, and Ordering Information.