Seamless Stainless Steel Tubes

At Vulroc, we specialize in  seamless stainless steel tubes,which are manufactured from solid billets and formed without welding, delivering excellent mechanical integrity, superior pressure resistance, and consistent corrosion performance. They are widely used in industries where reliability and cleanliness matter—such as heat exchangers, petrochemical systems, hydraulic lines, and precision instrumentation.

  • Higher Safety Margin
  • Strong Corrosion Resistance
  • Consistent Quality Control
  • Flexible Customization

We offer a comprehensive selection of products, including:

  • Heat Exchanger Tubes
    Optimized for thermal efficiency, clean surfaces, and stable dimensions.

  • Instrument & Hydraulic Tubing
    High precision tolerances, clean ID options, and strict testing for leakage prevention.

  • Mechanical / Structural Tubes
    Reliable strength and machinability for parts processing and fabrication.

Where Our Seamless Stainless Steel Tubes Are Used:

  • Heat Exchangers & Condensers (power plants, chemical processing, HVAC industrial systems)

  • Oil & Gas / Petrochemical (process lines, instrumentation tubing, high-pressure service)

  • Automotive & Mechanical Engineering (injector lines, hydraulic circuits, structural parts)

  • Food, Pharma & Clean Systems (sanitary applications with smooth internal finish options)

  • Shipbuilding & Marine (saltwater corrosion resistance solutions)

We adopt standardized packaging practices to ensure product safety:

  • Export-Ready Packing
  • Bundled with steel straps or wooden cases (as required)
  • End caps for protection of tube ID
  • Moisture-proof wrapping for sea shipment
  • Clear labeling: size, grade, heat no., quantity
  • Lead time varies by size/grade/quantity—contact us for a fast schedule estimate

Technical

Item

Specification

Material Grades Austenitic: 304/304L, 316/316L, 321, 347Others: 310S, 904L, Duplex / Super Duplex (upon request)
Standards (Typical) ASTM A213 / A269 / A312 (depending on application)EN 10216-5 / EN 10305 (depending on requirement)Custom standards supported
Finish Options Pickled & passivatedBright annealed (BA)Polished / electro-polished (for high cleanliness requirements)

Quality

Manufacturing & Treatment Cold drawn / cold rolledSolution annealed / bright annealedStraight or U-bent (upon request)
Quality & Documentation

Certificates & Compliance

 

  • Mill Test Certificate (MTC) / EN 10204 3.1
  • Chemical composition & mechanical properties report
  • Inspection reports (UT/ET/HT)
  • Packing list with heat number traceability

 

Inspection & Testing PMI (Positive Material Identification)Eddy current / ultrasonic testHydrostatic / air pressure testDimensional inspection & surface defect control

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