Electro polished Pipe & Tube

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At Steelage Alloys, we offer top-quality Stainless Steel Electropolished (EP) Pipes & Tubes, manufactured with ultra-smooth, mirror-like internal and external surfaces. Through a precise electrochemical process, surface impurities are removed, resulting in reduced surface roughness (Ra), enhanced corrosion resistance, and improved cleanability — making them perfect for ultra-high purity and sanitary applications.

Our EP tubes are produced under strict quality control and are often used where sterility, hygiene, and minimal contamination risk are critical. Available in various dimensions and grades, these tubes conform to global standards for pharmaceutical, food-grade, and semiconductor piping systems.

Corrosion Resistant

Trusted Supplier

Bulk Orders

Features

  • Ultra-Smooth Finish (Low Ra Value ≤ 0.4 µm)
  • Improved Corrosion & Chemical Resistance
  • Reduced Product Adhesion & Bacterial Growth
  • High Dimensional Accuracy
  • Cleanroom Packed (Optional)
  • Ideal for Orbital Welding & Critical Fittings

Specifications

Property Details
Outer Diameter (OD) 1/4" to 6" (6 mm to 152 mm)
Wall Thickness 0.5 mm to 3 mm
Finish Electropolished (ID & OD), Ra ≤ 0.4 µm
Lengths Standard up to 6 meters (custom on request)
Packaging Cleanroom-ready, capped, double bagged (optional)
Testing Surface Roughness, PMI, Ferrite, Hydro, Visual, and Dimension Checks

Standards

Standard Description / Use
ASTM A269 Welded/seamless tubing for general & high-purity service
ASTM A270 Sanitary tubing for food and pharma use
ASME BPE Bioprocessing Equipment Standard (pharma/biotech)
DIN 11850 Stainless tubes for hygiene applications
ISO 1127 International standard for seamless stainless tubing

Applications

  • Pharmaceutical & Biotech Fluid Systems
  • Food & Beverage Processing Lines
  • Laboratory & Cleanroom Piping
  • Semiconductor Manufacturing Equipment
  • Chemical Processing & Distribution Lines
  • Dairy & Brewery Installations

Manufacturing Process

Electro polished Pipe/Tube

hastelloy round bar

Round Bar

Analytic

Analytic

Cut to Length

Cut to Length

Centering

Centering

Heating

Heating

Perforation

Perforation

Inspection of Size

Inspection of Size

Pickling

Pickling

Inspection of Surface

Inspection of Surface

Lubricating

Lubricating

Cold Drawing (Cold Rolling)

Cold Drawing

Degreasing

Degreasing

Annealing

Annealing

Straightening

Straightening

Cut

Cut

Pickling / Passivating

Pickling / Passivating

Inspection

Inspection

Analytic

Analytic

Marking

Marking

Packing & Shipping

Packing & Shipping

Drawing & Formula

Formula: m = (OD - THK) × THK (mm) × L (m) × 0.02491
* For 316, 316L, 310S, 309S, etc., ratio=0.02507 OD = Outer diameter, THK = Wall Thickness, L = Length

Package

Plastic Bag

Wooden case

Logistics

By Sea

By Air