Polished Stainless Steel Tubes

Electropolished Tubing for Semiconductor & Pharmaceutical Applications

Polished stainless steel tubes, also known as electropolished stainless steel tubes, are designed for ultra-clean applications requiring high purity, smooth surface finish, and excellent corrosion resistance.

Vulroc Tube supplies high-quality electropolished tubing with roughness less than 0.1μm widely used in semiconductor manufacturing, pharmaceutical processing, biotechnology, and high-purity gas systems.

 

 

Product Types

  • Electropolished Stainless Steel Tubes (EP Tubes)
  • Bright Annealed & Electropolished Tubes (BA + EP)
  • Mechanical Polished Tubes (MP)
  • ID Polished Stainless Steel Tubes
  • OD Polished Stainless Steel Tubes
  • High Purity Stainless Steel Tubes
  • Cleaned & Passivated Tubes
  • Semiconductor Grade Stainless Steel Tubes

Key Features

Ultra Clean. Ultra Smooth. High Purity.

  • Ultra-low surface roughness (Ra ≤ 0.4 μm / 0.25 μm optional)
  • Excellent corrosion resistance
  • Reduced particle adhesion
  • Improved cleanability and sterilization
  • High purity for gas & fluid systems
  • Controlled ID surface finish
  • Oil-free and degreased surface
  • Suitable for orbital welding

Technical Specifications

Parameter Range
Outer Diameter 6 mm – 63.5 mm
Wall Thickness 0.5 mm – 5 mm
Length Up to 6,000 mm
Surface Finish Electropolished (EP)
Optional Finish BA + EP / MP + EP
Roughness Ra ≤ 0.8 μm / 0.6 μm / 0.4 μm / 0.25 μm
Standards ASTM A269 / A213 / A270
Materials 304L / 316L (Other grades as per clients’ needs)
Cleanliness Degreased & Cleanroom packed optional

Manufacturing Process

Cold Drawing → Solution Annealing → Pickling → Mechanical Polishing →
Electropolishing → Ultrasonic Cleaning → Pure Water Rinse →
Drying → Cleanroom Packing


Applications

Polished stainless steel tubes are widely used in high purity industries:

Semiconductor Industry

  • Gas delivery systems
  • Process piping
  • Ultra high purity lines
  • Vacuum systems
  • Cleanroom equipment

Pharmaceutical Industry

  • CIP/SIP systems
  • Sterile process piping
  • Bioreactors
  • WFI systems
  • Clean fluid transfer

Biotechnology

  • High purity liquid systems
  • Fermentation equipment
  • Sterile transfer lines

Food & Beverage (High Purity)

  • Hygienic piping
  • Clean processing systems

Surface Roughness Options

Finish Roughness
MP Ra ≤ 0.8 μm
EP Ra ≤ 0.6 μm
High Purity EP Ra ≤ 0.4 μm
Ultra High Purity EP Ra ≤ 0.25 μm

Packaging

  • Individually capped
  • PE sleeve protection
  • Cleanroom double bag packing (optional)
  • Wooden case packing
  • Nitrogen protection (optional)

FAQ

What is electropolished stainless steel tubing?
Electropolished tubing is stainless steel tubing treated with an electrochemical process that removes surface impurities and reduces roughness, resulting in a smoother and cleaner surface.

What roughness can you provide?
We can supply Ra ≤ 0.8 μm, 0.6 μm, 0.4 μm, and 0.25 μm depending on application requirements.

Which material is most commonly used?
316L stainless steel is the most commonly used material for semiconductor and pharmaceutical applications.

Do you provide cleanroom packaging?
Yes, we provide double bag cleanroom packaging for high purity applications.

Is orbital welding supported?
Yes, our electropolished tubes are suitable for orbital welding systems.

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