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Bright Annealed Tubes

Super-Clean, Precision Stainless Steel Tubes for Instrumentation, Pharma, Food, High-Purity & Clean Processing Lines

Inox Steel India is a leading manufacturer, stockist, and exporter of Bright Annealed Stainless Steel Tubes produced according to ASTM A269 with BA (Bright Annealed) finish. These tubes are processed using a controlled atmosphere bright annealing furnace, delivering a mirror-smooth, scale-free, contamination-free internal & external surface.

BA (Bright Annealed) tubes are essential for industries requiring:

  • Clean, contamination-free media flow
  • Ultra-smooth internal surface
  • High corrosion resistance
  • Precise dimensional tolerance
  • High purity fluid transfer
  • Clean processing lines
  • Compatibility with compression/ferrule fittings

ASTM A269 BA tubes are used in pharma, biotech, instrumentation, semiconductor, food processing, dairy, chemical injection lines, and automotive precision systems.

Table of Contents

What Is Bright Annealed (BA) Finish?

Bright Annealing is a heat treatment process performed inside a high-purity hydrogen atmosphere furnace, ensuring: No oxidation, No scaling, Mirror-bright surface, Low carbon contamination, Extremely smooth ID surface, and High corrosion resistance.

Why BA Finish Is Superior:

  • Ultra-smooth internal bore
  • High purity & sanitary flow
  • Excellent formability & bendability
  • Best for ferrule/compression fittings
  • No pickling required (clean, scaled-free surface)
  • Perfect for high-precision control & instrumentation systems

Grades Supplied in ASTM A269 BA Tubes

  • SS 304 / 304L
  • SS 316 / 316L (most demanded)
  • SS 321 / 347
  • SS 316Ti (special order)

All tubes are manufactured with strict ID cleanliness and OD tolerance suitable for global instrumentation standards.

Where Bright Annealed Tubes Are Used

Clean & High-Purity Sectors

  • Pharmaceutical & Biotech
  • Food & Dairy Processing
  • Breweries & Beverage Lines
  • Semiconductor & Electronics
  • High-Purity Water (HPW/UPW)

Precision & Control Lines

  • Chemical Injection Lines & Analyzer Shelters
  • Gas Distribution Networks
  • Oil & Gas Instrumentation
  • Automotive Fine Fluid Lines
  • Clean Steam Distribution

Manufacturing Process — BA Tubes (ASTM A269)

Manufacturing Steps:

  1. Cold Drawing / Rolling: Ensures precise dimensions and mechanical properties.
  2. Bright Annealing in Controlled Atmosphere: Hydrogen environment → bright, oxidation-free finish.
  3. Pickling + Passivation: Removes any impurities, ensuring sterile internal surfaces.
  4. Polishing (Optional): ID/OD polishing for high-purity & semiconductor-grade applications.
  5. NDT Testing: Ensures tubes are defect-free and suitable for high-purity flows.

Why Inox Steel India BA Tubes Stand Out

  • Ultra-smooth mirror-like ID/OD finish
  • Perfect for sterile & high-purity applications
  • Tight OD/ID tolerance (±0.05 mm)
  • High corrosion resistance
  • Available in straight lengths & coils
  • 316L BA tubes for global compliance
  • Full traceability & certification

Applications & Technical Specifications of Bright Annealed Tubes

ASTM A269 BA (Bright Annealed) tubes are used where cleanliness, smooth internal surface, corrosion resistance, and precision flow control are critical. These tubes undergo hydrogen bright annealing, resulting in a mirror-clean ID/OD, making them suitable for pharma, high-purity water, instrumentation, biotech, food, beverage, and semiconductor applications.

Applications by Sector / Media / Requirement

🔹 Pharmaceutical & Biotech Applications

Application Media Industry
Purified Water (PW/HPW) UPW / RO Water Pharma
Clean Steam Lines Clean steam Biotech
CIP/SIP Circuits Caustic, sterilants Pharma
WFI Transfer WFI (Water for Injection) Bio-pharma
Process Skids Liquids & solvents API Manufacturing

Why BA Tubes? Ultra-clean ID + corrosion resistance + hygienic surface finish.

🔹 Food, Dairy & Beverage Applications

Application Media Industry
Milk & Dairy Lines Milk, whey, cream Dairy
Beverage Processing Juices, syrups FMCG
Brewery Systems Beer, CO₂ lines Beverage
Pasteurizer Lines Hot water, steam Food Processing

Why BA Tubes? No scale, no contamination, no metallic taste transfer.

🔹 Instrumentation & Precision Control Systems

Application Media Industry
Impulse Tubing Steam, air, liquids Oil & Gas
Analyzer Lines Natural gas, chemicals Refinery
Dosing Lines Acids, injection fluids Chemical Plants
Gas Distribution N₂ · O₂ · CO₂ Pharma · Labs
Pneumatic Tubing Instrument air Automation

Why BA Tubes? Perfect with Swagelok/Parker fittings + zero contamination.

🔹 Semiconductor & Electronics Applications

Application Media Industry
UPW Lines Ultrapure water Semiconductor
Clean Gas Lines High-purity gases Electronics
Chemical Delivery Etching & plating chemicals PCB Manufacturing

Why BA Tubes? Smooth ID prevents particle shedding and contamination.

Dimensional Range (General)

  • Outside Diameter (OD): 6 mm – 50.8 mm
  • Wall Thickness: 0.5 mm – 3.0 mm
  • Length: Straight 6M / 12M | Coils available on request
  • Finish: BA (Bright Annealed) – standard | Electropolished (EP) – optional | Pickled & passivated
  • Tube Type: Seamless or Welded | Condition: Annealed

Indicative Price Range — 2025 (INR + USD)

Grade Condition Price (INR/kg) Price (USD/kg) Applications
SS 304/304L (BA) BA Finish ₹260 – ₹360 $3.40 – $4.70 General clean applications
SS 316/316L (BA) BA Finish ₹300 – ₹480 $3.80 – $6.20 Pharma · Instrumentation
SS 321 / 347 (BA) BA Finish ₹350 – ₹550 $4.50 – $7.00 High-temp + corrosive
Electropolished (EP) EP Finish ₹420 – ₹680 $5.50 – $8.90 Semiconductor-grade

Final price depends on OD, WT, BA/EP finish, coil/straight requirement & TPI.

Testing & Quality Assurance

Mechanical Tests

  • Tensile strength
  • Yield strength
  • Hardness

Purity Tests

  • Clean-bore inspection
  • Passivation verification
  • Ra < 0.8 measurement

Non-Destructive Tests

  • Eddy current test
  • Hydrostatic test
  • Pneumatic leak test

Dimensional & Certs

  • OD/WT tolerance
  • Straightness/Ovality
  • EN 10204 3.1 / 3.2

TPI Available: SGS, TUV, BV, DNV, Intertek.

Engineering Notes (For Designers & Process Engineers)

  • When To Choose BA Finish: When media must remain pure, when contamination-free flow is required, for pharmaceutical & biotech skids, and for instrumentation & analyzer lines.
  • BA vs EP: BA Finish: Smooth, bright, clean; EP Finish: Mirror-polished ID/OD for semiconductor/high purity.
  • Fitting Compatibility: BA tubes work perfectly with Swagelok, Parker, Gyrolok, and A-LOK.
  • Purity Requirements: BA tubes are ideal for process critical fluids, high-purity gases, sterile lines, and sensitive chemical applications.
  • Bending Characteristics: BA tubes allow tight-radius bending and double flaring with zero cracking.

Bright Annealed Tube Supplier Near Alankar Cinema, Mumbai — Inox Steel India

Inox Steel India is one of the most trusted suppliers of Bright Annealed (BA) Tubes near Alankar Cinema, Mumbai, providing ultra-clean, mirror-finish stainless steel tubes conforming to ASTM A269 for pharmaceutical, biotech, food & beverage, instrumentation, and high-purity fluid transfer systems.

Our BA Tubes offer: Ultra-smooth, contamination-free ID, High corrosion resistance (316L BA = global pharma standard), Tight tolerance for ferrule/compression fittings, Mirror-bright OD for hygienic applications, Superior flow performance with zero particle shedding, and Perfect for CIP/SIP, steam lines, UPW & instrumentation. We supply both seamless and welded BA tubes with full traceability and documentation, making us a preferred vendor for leading EPCs, pharma OEMs, and automation companies.

Why Choose Inox Steel India for BA Finish Tubes?

  1. Best-in-Class BA (Bright Annealed) Finish: Hydrogen annealed, mirror-clean ID & OD, suitable for sanitary & purity-critical applications.
  2. High-Purity Compliance: Ideal for Pharma (WFI, PW, HPW), Biotech (Clean steam, media lines), and Food/Beverage (CIP/SIP circuits).
  3. Superior Corrosion Resistance: 316L BA tubes resist chlorides, acids, caustics, and steam.
  4. Perfect Fit for Ferrule Fittings: Compatible with Swagelok, Parker, Gyrolok, and A-LOK.
  5. Export Expertise: We export BA tubes to UAE, Saudi, Oman, Qatar, Europe, USA, Canada, Brazil, Singapore, Malaysia, and Vietnam.
  6. Complete Documentation: EN 10204 3.1 / 3.2, BA Furnace Report, Passivation Certificate, NDT & Cleanliness Reports.

Industries & Applications Served

Industry Applications
Pharmaceutical & Biotech WFI, PW, HPW, CIP/SIP lines
Food & Beverage Dairy lines · Brewery pipes
Instrumentation & Automation Impulse lines · Analyzer lines
Semiconductor & Electronics UPW lines · Clean gas distribution
Chemical & Petrochemical High-purity chemical feed lines
Oil & Gas Precision control & dosing
Water Treatment & RO Plants Purified water distribution
Automotive & Clean Fluid Fine bore fluid control

Packaging & Export Handling

Bright Annealed tubes are sensitive to surface contamination and require clean, protective packaging.

Packaging Includes

  • Clean-bore sealing (both tube ends capped).
  • LDPE/HDPE wrapping and Anti-scratch protective film.
  • Wooden pallets / wooden boxes for export.
  • Full traceability labels & heat number tags.

Marking & Shipping

  • Marking: ASTM A269 · Grade · BA Finish · OD × WT · Heat Number.
  • Ports: JNPT Mumbai | Mundra Port | Hazira Port.
  • Modes: FCL / LCL, Air freight (urgent pharma orders).

Get a Quick BA Tube Quote

Need ultra-clean Bright Annealed tubes for pharma, food, instrumentation, or high-purity applications? Speak with our technical team today.

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)

316L BA is globally preferred for pharma, biotech, and high-purity applications.

Yes — although BA is already clean, tubes are passivated to ensure chemical purity.

Yes — tight OD tolerance ensures a perfect leak-free seal.

Yes — coils are supplied on request for long runs.

Yes, we export extensively to GCC, Europe, USA, Africa & Southeast Asia.

Inox Steel India supplies Bright Annealed (BA) tubes as per ASTM A269 in SS 304/316L. Ultra-clean, mirror-finish tubes for pharma, biotech, food, instrumentation & high-purity applications. Exporter to GCC, Europe, Africa & USA.

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