Contact us now!

+91 9930796690

Home > Seamless Tube > Electropolished Tubes

Electropolished (EP) Tubes – Pharma & Food-Grade Manufacturer in India

Ultra-Smooth, Sanitary Stainless Steel Tubes for High-Purity Processing Lines

Inox Steel India is a leading manufacturer and exporter of Pharma-grade & Food-grade Electropolished (EP) Tubes, engineered to meet the highest requirements of purity, hygiene, and corrosion resistance. These tubes undergo mechanical polishing + electrochemical electropolishing, producing an extremely smooth, reflective, micro-clean internal and external surface.

Electropolished tubes are essential for industries where zero contamination, microbial resistance, high purity, and sterile processing are mandatory. Our EP tubes meet pharmaceutical & food-grade expectations such as:

  • ASME BPE compliance (finish class SF1/SF4)
  • ASTM A270 / A269 base material
  • Ra ≤ 0.4 – 0.8 µm interior surface
  • Cleanroom-grade packaging

EP tubes are the backbone of biotech, pharmaceutical, clean steam, CIP/SIP lines, purified water (PW), WFI, food, dairy, and beverage systems.

Table of Contents

What Is Electropolishing? Why It Matters for Pharma & Food?

Electropolishing (EP) is an advanced electrochemical process that removes a microscopic layer from the tube’s interior & exterior surfaces.

The result:

  • Mirror-like smoothness
  • Zero scale, burrs, or contaminants
  • Ultra-low surface roughness (Ra)
  • Minimal microbial retention
  •  Perfect for sterilization (CIP/SIP)
  • High resistance to pitting & chemicals

Why Industries Prefer EP Tubes:

  • No micro-cracks → No bacterial entrapment
  • No weld discoloration or roughness
  • Extremely hygienic & easy to clean
  • Maintains integrity under steam
  • Compliant with sanitary standards

Grades Supplied for EP Tubes

  • SS 316L (most preferred in pharma/biotech)
  • SS 304/304L (general food-grade usage)
  • SS 316Ti (high-temperature stability)
  • SS 317L (higher corrosion resistance)

All tubes are supplied with full traceability, Ra values, and polishing data sheets.

Where Electropolished Tubes Are Used

Pharmaceutical & Biotech

  • WFI (Water for Injection)
  • PW / HPW / UPW lines
  • CIP/SIP distribution lines
  • Sterile reactors & fermenters
  • Clean steam piping & skids

Food, Dairy & Beverage

  • Milk, yogurt, cream transfer
  • Brewery systems
  • Processed food lines
  • Sugar syrup lines
  • Juice & beverage transfer

Applications & Technical Specifications of Electropolished (EP) Tubes

Electropolished tubes are used in ultra-hygienic, sterile, and high-purity processing environments, where the internal surface must remain smooth, microbe-resistant, and chemically inert. EP tubes achieve: Ra ≤ 0.4–0.8 µm, zero contamination, and excellent CIP/SIP sterilization performance.

Applications by Sector / Media / Regulatory Requirement

🔹 Pharma & Biotech Applications (ASME BPE Compatible)

Application Media Industry
WFI Distribution Water for Injection Pharma
UPW/HPW/PW Lines Ultra-Pure Water Biotech
CIP/SIP Systems Caustic · Sterilants · Steam Pharma
Clean Steam Lines Clean saturated steam Sterile Plants
API Process Skids Solvents · Solutions Biotech
Fermentation Lines Media feed Vaccines/Bio-Processing

Why EP Tubes? Micro-smooth surfaces → no biofilm formation → highest hygiene level.

🔹 Food, Dairy & Beverage Applications (Sanitary Grade)

Application Media Industry
Dairy Transfer Lines Milk, whey, cream Dairy
Beverage Processing Juices, syrups FMCG
Carbonation Lines CO₂, beverage mix Beverage
Brewery Systems Beer, yeast, water Breweries
Pasteurizer Piping Hot water, steam Food Processing

Why EP Tubes? No scaling, no metallic taste, no microbial growth.

🔹 Semiconductor & High-Purity Electronic Industry

Application Media Industry
UPW Lines Ultrapure water Semiconductor
Clean Gas Lines High-purity N₂, O₂, Ar Electronics
Chemical Delivery HF, HCl, solvents PCB Manufacturing

Why EP Tubes? Mirror-clean ID prevents particle release — critical for IC manufacturing.

Dimensional Range (General)

  • Outside Diameter (OD): 6 mm – 101.6 mm (¼” to 4”)
  • Wall Thickness: 0.5 mm – 3.0 mm
  • Length: 6M / 12M straight
  • Finish Options: EP (Electropolished), BA (Bright Annealed base), Mechanical Polish (MP)
  • Surface Roughness: Ra ≤ 0.8 µm (Standard), Ra ≤ 0.4 µm (ASME BPE SF4)
  • Material Grade: 316L (Primary), 304/304L, 316Ti / 317L (special order)

Indicative Price Range — 2025 (INR + USD)

Grade Finish Price (INR/kg) Price (USD/kg) Application
SS 304/304L EP Ra ≤ 0.8 µm ₹420 – ₹650 $5.30 – $8.20 Food/Beverage
SS 316L EP Ra ≤ 0.8 µm ₹480 – ₹780 $6.10 – $9.85 Pharma/Biotech
SS 316L EP (SF4) Ra ≤ 0.4 µm ₹650 – ₹1,200 $8.40 – $15.50 Semiconductor
316Ti/317L EP Premium grade ₹550 – ₹900 $7.10 – $11.20 Chemicals/Clean steam

Prices vary based on Ra value, OD/WT, BA base, weld/seamless type & TPI.

Testing & Quality Assurance

Mechanical Tests

  • Tensile test
  • Yield test
  • Hardness test

Surface & Purity

  • Ra roughness test
  • Passivation cert
  • Hydrocarbon-free

Non-Destructive Tests

  • Eddy current (EC)
  • Hydrostatic test
  • Pneumatic test

Dimensional & Certs

  • OD/WT tolerance
  • EN 10204 3.1 / 3.2
  • EP process cert

TPI Approved By: SGS, TUV, BV, DNV, Intertek.

Engineering Notes (For Pharma/Food Process Designers)

  • Electropolished vs Bright Annealed: EP provides ultra-high purity (Ra 0.4–0.8 µm) and sterile-level hygiene compared to standard BA.
  • Material Choice: 316L EP is the global pharma standard; 304/304L EP is used for food, dairy, and beverage; 316Ti/317L EP for aggressive chemicals.
  • Sanitization: EP tubes withstand clean steam, caustic CIP, and hot WFI lines.
  • Microbial Safety: Mirror-smooth ID prevents Pit formation and bacterial harboring, ensuring easy sterilization.

Electropolished Tube Supplier Near Alankar Cinema, Mumbai — Inox Steel India

Inox Steel India is a trusted supplier and manufacturer of Electropolished (EP) Pharma-Grade & Food-Grade Tubes near Alankar Cinema, Mumbai, delivering ultra-hygienic stainless steel tubing used in pharmaceutical, biotech, dairy, food & beverage, semiconductor, and high-purity water systems.

Our EP tubes are processed through mechanical polishing + electrochemical electropolishing, achieving: Ra ≤ 0.4–0.8 µm (ASME BPE compliant), mirror-smooth interior & exterior finish, zero micro-cracks, burrs, or contamination, perfect sterilization performance (CIP/SIP), and extremely high corrosion resistance. We supply both seamless & welded EP tubes with full documentation.

Why Choose Inox Steel India for EP Finish Tubes?

  1. Ultra-Smooth Surface: Mirror-polished ID/OD with no scaling or roughness, best for WFI, PW, HPW, UPW systems.
  2. Global Pharma Compliance: ASME BPE (SF1/SF4 finish), Ra value test reports, and cleanroom-grade packaging.
  3. Bio-Processing Ready: Designed for high-temperature steam, caustic scrubbing, and zero bacterial residue.
  4. High Corrosion Resistance: 316L EP is primary for fermentation, drug formulation, and dairy lines.
  5. Worldwide Export: Regular exports to UAE, Saudi, Qatar, Oman, Germany, USA, Malaysia, Singapore, and Vietnam.
  6. Complete Documentation: EN 10204 3.1/3.2, EP surface Treatment, Ra report, and Passivation certs.

Industries & Applications Served

Industry Applications
Pharmaceuticals WFI, PW, HPW lines · CIP/SIP circuits
Biotechnology Bio-reactor piping · Media transfer
Food & Dairy Milk, yogurt & beverage lines
Beverage Processing Brewery piping · Sugar syrup lines
Semiconductor UPW & clean gas distribution
Cosmetics & Healthcare Pure solvent & formulation piping
Chemical Processing High-purity chemical transfer

Packaging & Export Handling

EP tubes require ultra-clean, contamination-free packaging to protect the mirror finish.

Packaging Includes

  • Cleanroom-grade sealed ends and individual poly sleeves.
  • LDPE/HDPE multi-layer and Desiccant packs.
  • Wooden pallets or fumigated boxes.
  • Ra value sticker, heat tags, and batch info.

Marking & Shipping

  • Marking: Grade · “EP Finish / Ra Value” · ASTM A270 · OD × WT · Heat number.
  • Modes: FCL / LCL, Air freight for urgent pharma projects.

Ports: JNPT Mumbai | Mundra Port | Hazira Port.

Get a Quick EP Tube Quote

Need pharma-grade or food-grade Electropolished Tubes for a project? Contact our technical team today for premium mirror-finish tubing.

Inox Steel India

52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004

Email

alloy@inoxsteelindia.in, steel@inoxsteelindia.in

Phone

+91 9930796690

Frequently Asked Questions (FAQs)

BA tubes are bright annealed for clean service, while EP tubes undergo electropolishing for ultra-smooth, hygienic surfaces.

Yes, especially for product contact, WFI, and critical hygienic systems.

Yes. BA tubes are often used for support lines, while EP tubes are used for critical product contact systems.

Inox Steel India supplies pharma-grade & food-grade electropolished tubes (Ra ≤ 0.4–0.8 µm) in SS 316L/304L for WFI, PW, CIP/SIP, dairy, beverage & biotechnology. ASME BPE compliant. Exporter to GCC, Europe, USA & Asia.