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Fabricated Welded Tubes

Fabricated Welded Tubes Manufacturer, Supplier & Exporter – INOX STEEL INDIA

INOX STEEL INDIA is a leading manufacturer of Fabricated Welded Tubes designed specifically for projects where standard sizes, shapes, or alloys are not sufficient.

When engineers, OEMs, EPC contractors, and design consultants require custom OD, precision-shaped, or non-standard alloy tubes, INOX STEEL INDIA is chosen for multi-process welding capability, precision tolerances, and full customisation.

From 6 mm micro-tubing to 1200 mm custom OD fabricated sections, INOX STEEL INDIA supports both small-batch specialised requirements and long-run industrial production.

Table of Contents

What Are Fabricated Welded Tubes?

Fabricated Welded Tubes are custom-engineered tubular sections manufactured by welding sheets, strips, or profiled plates to create tubes with non-standard dimensions, shapes, or alloy combinations.

When Fabricated Tubes Are Required

  • Standard ASTM / EN sizes do not fit the design
  • Special corrosion or temperature resistance is required
  • Unique structural support tubes are needed
  • Architectural or HVAC demands special shapes
  • OEM machinery requires precise tube geometry

Standard Welded Tubes vs Fabricated Welded Tubes

Parameter Standard Welded Tube Fabricated Welded Tube
OD / WT Fixed combinations Any OD / WT combination
Alloy Options Limited All alloys including Ni / Ti / Duplex
Shapes Round Round, square, rectangle, oval, custom
Length Standard Custom lengths, bends & assemblies
Delivery Basic tubes Part-fabricated / fully fabricated

How Fabricated Welded Tubes Are Manufactured

  1. Raw material selection based on corrosion and mechanical requirements
  2. Roll forming / press brake / custom tool forming
  3. Precision welding using TIG, Plasma, Laser, MIG or Orbital welding
  4. Weld dressing, grinding and seam blending
  5. Heat treatment where required (solution annealing / stress relieving)
  6. Surface finishing – BA, polished, mirror or passivated
  7. Testing & dimensional verification
  8. Optional fabrication – bends, collars, headers, frames

Industry Applications

Industry Applications Preferred Alloys
Pharmaceutical & Food Hygienic manifolds, equipment parts 304L / 316L
Chemical & Petrochemical Corrosive fluid handling Duplex, Hastelloy, Nickel Alloys
Marine & Offshore Seawater circulation & structures Cu-Ni, Duplex
HVAC & Heat Transfer Headers, coils, manifolds SS 316L, Titanium
Architecture Façade & designer frameworks SS 304 / 316
OEM Machinery Automation frames & assemblies SS / CS / Aluminium

Size Range & Custom Capabilities

Parameter Specification
Outside Diameter 6 mm – 1200 mm (custom)
Wall Thickness 0.5 mm – 12 mm
Length 1 – 12 m (fabricated lengths available)
Shapes Round, square, rectangle, oval, elliptical, custom

Surface Finish Options

Finish Application
2B General purpose
BA Pharma / Food
180–240 Grit Architecture
320–400 Grit Precision machinery
600 Grit High gloss
Mirror Polish Decorative / premium

Indicative Price List (2025)

Alloy INR/Kg USD/Kg
SS 304 / 304L ₹260 – ₹340 $3.25 – $4.20
SS 316 / 316L ₹330 – ₹420 $4.10 – $5.25
Duplex / Super Duplex ₹480 – ₹900 $6.25 – $11.50
Nickel Alloys ₹1,800 – ₹4,200 $22 – $55
Titanium ₹1,600 – ₹2,400 $19 – $30

Testing & Quality Assurance

  • Visual & dimensional inspection
  • Hydro / Pneumatic test
  • UT / RT / DPT / Eddy current testing
  • PMI & IGC testing
  • Tensile & hardness tests

Packaging & Export Readiness

  • HDPE / LDPE wrapping
  • Anti-scratch protective films
  • Tube end caps
  • Wooden crates for export

Contact INOX STEEL INDIA for Custom Fabricated Welded Tubes

Yes — we manufacture ANY OD from 6 mm to 1200 mm, and we work with stainless, duplex, nickel alloys, titanium, copper-nickel & aluminium.

TIG, MIG, Plasma, Laser, and Orbital welding — depending on thickness, alloy, and application.

Yes, up to 600-grit and full mirror finish.

Yes — we offer headers, manifolds, coils, frames, collars, elbows, fabricated bends.

Yes — regular exports to GCC, Europe, USA, Africa, and Southeast Asia.