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Stainless Steel Instrumentation Tubing

Stainless steel instrumentation tubing is precision manufactured thin-walled tubing used in measurement, control, and impulse line systems to safely convey fluids and gases under high pressure, temperature, and corrosive conditions.

Manufactured to ASTM A269 and ASTM A213 standards, it is commonly supplied in 316/L stainless steel with EN10204 3.2 certification supplied as Fluidline’s standard for full material traceability and independent third-party verification. It is designed for leak-free performance when used with compatible compression tube fittings in critical instrumentation and process control systems.

Stainless Steel Seamless Tube

Stainless Steel Coiled Seamless Tube

Single-Jacketed Tubing

Special Alloy Tubing

Stainless Steel 316Ti /1.4571 Tube

13CRM044 Tube

Seamless Tubes AP/BA/EP

Key Features of  Stainless Steel Instrumentation Tubing:

  • Seamless cold-drawn stainless-steel tubing for high-pressure instrumentation and hydraulic service
  • Manufactured in accordance with ASTM A269 and ASTM A213 standards
  • Standard material grades include 316/L, 304/L stainless steel
  • Metric sizes available from 3 mm to 50 mm OD
  • Imperial sizes available from 1/8” to 1” OD
  • Multiple wall thickness options available based on ASME pressure ratings and application requirements
  • Excellent corrosion resistance, temperature resistance, and pressure integrity
  • Suitable for bending, flaring, orbital welding, and use with compression tube fittings
  • Easier installation compared to traditional piping systems, reducing connections and potential leak points
  • Lightweight and less bulky than pipe, eliminating the need for threading in many applications
  • EN10204 3.2 certification supplied as Fluidline’s standard for independent third-party verification
  • Full heat number traceability on every tube length for quality assurance and compliance
  • Surface finishes available in Annealed & Pickled (A&P) ex stock, with Bright Annealed (BA) available on request
  • Tubes supplied free of scale for critical instrumentation and process applications
  • Fully certified and traceable for use in process control, analytical, hydraulic, and high-purity systems
  • Plugged ends supplied as standard to protect internal cleanliness during transport and storage
  • Oxygen cleaning and individual tube wrapping available on request for special service requirements
  • Compatible with instrumentation tube fittings and systems used across mining, petrochemical, power, oil & gas, and process industries across Africa

Applications of Stainless Steel Instrumentation Tubing:

  • Process measurement and impulse lines
  • Instrument air and pneumatic control systems
  • Oil & gas production, refining, and offshore installations
  • Petrochemical and chemical processing plants
  • Power generation, boiler, and steam systems
  • Analyzer houses and sampling systems
  • Hydraulic and high-pressure control systems
  • Hydrogen, oxygen, nitrogen, and high-purity gas applications
  • Process skids and OEM instrumentation assemblies
  • Mining, mineral processing, and metallurgical plants
  • Water treatment and desalination systems
  • Laboratory, calibration, and test systems

 

Frequently Asked Questions

Stainless steel instrumentation tubing is used in control, measurement, and impulse line systems to safely transport fluids and gases between process equipment, valves, sensors, and instruments under high pressure, temperature, and corrosive operating conditions.

316L stainless steel is the most commonly specified grade for instrumentation tubing due to its excellent corrosion resistance, strength, weldability, and compatibility with compression tube fittings.

Instrumentation tubing is commonly manufactured to ASTM A269 and ASTM A213 specifications, ensuring tight dimensional tolerances, controlled surface finish, and mechanical properties suitable for instrumentation and process control systems.

EN10204 3.2 certification provides independent third-party verification of material chemistry and mechanical properties, offering critical assurance for safety-critical, regulated, and high-pressure applications.

The most commonly used instrumentation tubing sizes are 1/4”, 3/8”, and 1/2” OD, although full metric and imperial size ranges are used depending on system design, flow requirements, and pressure ratings.

Yes. It is strongly preferred for high-pressure and critical process applications due to its uniform wall thickness, strength, corrosion resistance, and long-term reliability.

It is commonly supplied in Annealed & Pickled (A&P) finish ex stock, with Bright Annealed (BA) finish available on request for high-purity and specialist applications.

Yes. Fluidline supplies EN10204 3.2 certification as standard, providing full material traceability and independent third-party verification.

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