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INOX STEEL INDIA is one of India’s leading manufacturers of Stainless-Steel Welded Tubes engineered for mechanical, architectural, sanitary, automotive, heat exchanger, and general engineering applications.
Manufactured using TIG / Plasma / Laser welding, and finished with precise weld bead removal, annealing, pickling, and polishing, our SS Welded Tubes are known for:
We supply stainless steel welded tubes in Grades 304, 304L, 316, 316L, 321, 347, 310, meeting global standards like ASTM A249 / A269 / A270 / A554, DIN, JIS, and EN norms.
With a strong presence across India, GCC, Europe, Africa, and Southeast Asia, INOX STEEL INDIA has become a preferred supplier for OEMs, architects, fabricators, EPC contractors, food & beverage companies, and chemical plants.
Stainless Steel Welded Tubes are manufactured by forming stainless steel strips into a tubular shape and welding the seam using TIG/Plasma/Laser welding, followed by bead removal and finishing.
Also known as:
Available Shapes:
| Feature | Welded Tube | Seamless Tube |
|---|---|---|
| Cost | More economical | Higher |
| OD/WT Consistency | Excellent | Moderate |
| Availability | Easily available | Limited |
| Weld Integrity | TIG/Laser welded → Strong | No weld |
| Applications | Mechanical, sanitary | High-pressure |
Welded tubes are ideal for 70–80% of SS applications due to precision, finish & cost efficiency.
Grades: 304 / 304L • 316 / 316L • 310 • 321 • 347
Standards: ASTM A249 • A269 • A270 • A554 • EN 10217-7 • DIN 17457
Brand: INOX STEEL INDIA
| Section | Parameter | Technical Specification |
|---|---|---|
| General | Product | Stainless Steel Welded Tubes |
| Alternate Names | SS Welded Tubes • SS ERW Tubes • Welded SS Tubing | |
| Manufacturing Method | TIG / Plasma / Laser Welded + OD/ID bead removal + Heat treatment | |
| Category | Mechanical • Instrumentation • Sanitary • Architectural • Heat Exchanger | |
| Material Grades | Austenitic | 304, 304L, 316, 316L, 310, 321, 347 |
| Special | 316Ti, 317L available on request | |
| Dimensional Range | OD Range | 6 mm to 508 mm |
| Thickness | 0.5 mm to 6.0 mm | |
| Length | 6m (standard), custom cut lengths | |
| Shape Options | Round • Square • Rectangular • Oval • Custom | |
| Mechanical Properties | Grade 304 | YS ≥ 205 MPa • TS ≥ 515 MPa • Elongation ≥ 40% |
| Grade 316 | YS ≥ 205 MPa • TS ≥ 515 MPa • Elongation ≥ 40% | |
| Grade 321 | Stabilised for heat resistance | |
| Grade 347 | Nb-stabilised against carbide precipitation | |
| Grade 310 | High-temperature oxidation resistance | |
| Chemical Composition | 304 | C≤0.08 • Cr 18–20 • Ni 8–11 |
| 316 | C≤0.08 • Cr 16–18 • Ni 10–14 • Mo 2–3 | |
| 321 | Ti-stabilised SS | |
| 347 | Nb-stabilised SS | |
| 310 | Cr 24–26 • Ni 19–22 | |
| Welding Characteristics | Weld Type | Autogenous TIG / Laser / Plasma |
| Weld Finish | Internal bead rolling • External polishing | |
| Post-Weld | Solution annealing • Pickling • Passivation | |
| Testing & QA | Mandatory Tests | Hydro test • Eddy Current • Visual • Dimensional |
| Optional | RT • UT • PMI • IGC test • Hardness • Flattening/Flaring | |
| Standards | Welded Tubing | ASTM A249, A269, A270, A554 |
| Structural | EN 10217-7 • DIN 17457 | |
| Square/Rectangular | ASTM A554 | |
| Surface Finish | Mechanical | 180/240/320/400/600 grit |
| Other | BA • 2B • Mirror Polish | |
| Applications | Mechanical | SS tubular parts • OEM |
| Sanitary | Food & pharma (A270) | |
| Architectural | Square/rectangular polished tubes | |
| Heat Exchangers | A249 / A269 tubes | |
| End Conditions | Ends | Plain, Bevelled, Deburred |
| HSN Code | 7306.40.00 (SS Welded Tubes) |
Smooth, High-Quality Weld Seams
TIG/Laser welds produce fine, accurate, and strong seams suitable even for sanitary applications.
Available in All Global Standards
A249 • A269 • A270 • A554 • EN 10217-7 • DIN 17457
Superior Finishes:
2B, BA, 180/240/320/400/600 Grit, Mirror Polish (Architectural), and Sanitary Polish (A270).
Range of Shapes:
Round, square, rectangular, oval, elliptical & custom sections.
Corrosion Resistance:
316/316L → Chloride resistance
321/347 → Heat resistance & stabilization
310 → High-temperature oxidation resistance
Ideal for OEMs & Fabricators:
Used in:
• Heat exchangers
• Furniture
• Pharma equipment
• Exhaust systems
• Architectural applications
Mechanical & Engineering:
Food & Pharma (A270):
Heat Exchangers / Condensers:
Architectural & Structural
Chemical & Petrochemical:
General Fabrication:
🇮🇳 India: Huge demand in Ahmedabad (tube cluster), Mumbai, Gujarat industrial belt, and Pune OEM hubs.
🌍 Middle East:Food & beverage, desalination plants, and oil & petrochemical skids.
🇺🇸 Europe & USA:Architectural tubes, process equipment, and high-finish tubing.
INOX STEEL INDIA regularly supplies SS welded tubes to UAE, Saudi Arabia, Oman, Kuwait, South Africa, UK, USA, Germany, Italy, Singapore, Malaysia.
A. PHARMA & FOOD INDUSTRY (A270 Sanitary Tubes)
| Application | Description | Recommended Grades | Finish |
|---|---|---|---|
| Dairy Lines | Milk, cream, beverage pipelines | 316L | 320–600 grit, BA |
| Purified Water / WFI | Clean processing | 316L | BA / Sanitary polish |
| Process Equipment | Mixing / dosing tubes | 304L / 316L | BA |
| High Cleanliness Tubing | Zero contamination | 316L | A270 Polish |
B. MECHANICAL & ENGINEERING
| Application | Description | Grades |
|---|---|---|
| OEM Machine Tubing | General machinery | 304/304L |
| Automotive Components | Exhaust tubing | 321 / 347 / 310 |
| Conveyor Frames | Lightweight structures | 304/316 |
C. ARCHITECTURAL & STRUCTURAL (A554 Tubes)
| Application | Description | Shape | Finish |
|---|---|---|---|
| Handrails | Decorative structures | Round | Mirror / 600 grit |
| Façade Tubes | Structural members | Square/Rectangular | Satin/Mirror |
| Furniture Tubes | Aesthetic frames | Round/Square | Polished |
D. HEAT EXCHANGERS / HVAC (A249 / A269)
| Application | Description | Grades |
|---|---|---|
| Heat Exchanger Tubes | Condenser / evaporator | 304/316 |
| Chillers & Heaters | Thin-wall welded tubes | 304L / 316L |
| Industrial Coolers | Corrosion resistance | 316L |
E. CHEMICAL & PETROCHEMICAL
| Application | Description | Grades |
|---|---|---|
| Corrosive Lines | Acid & chloride resistance | 316L / 317L |
| High-Temperature Piping | Thermal stability | 310 / 321 / 347 |
| OD (mm) | WT (mm) | Length |
| 6 – 19 mm | 0.5 – 1.2 | 6m |
| 19 – 50.8 mm | 0.6 – 2.0 | 6m |
| 50.8 – 114 mm | 0.8 – 3.0 | 6m |
| 114 – 168 mm | 1.0 – 4.0 | 6m |
| 168 – 508 mm | 1.5 – 6.0 | 6m |
| Shape | Size Range | WT |
| Square | 12×12 to 150×150 mm | 1.0 – 6.0 mm |
| Rectangular | 20×10 to 200×100 mm | 1.0 – 6.0 mm |
| Oval / Elliptical | Custom | 1.0 – 3.0 mm |
SPECIAL SIZES IN DEMAND
| Finish Type | Ra / Grit | Application |
| 2B | Mill finish | General tubing |
| BA (Bright Annealed) | Smooth, reflective | Pharma / Food |
| 180–240 Grit | Satin | Architecture |
| 320 Grit | OEM Machinery | Engineering |
| 400–600 Grit | High polish | Decorative |
| Mirror Polish | <0.2 Ra | Premium architectural |
| Grade | Property | Applications |
| 304 / 304L | General corrosion | Architecture, mechanical |
| 316 / 316L | Chloride resistance | Food/pharma, chemical |
| 310 | High-temp oxidation | Furnaces, exhaust |
| 321 | Titanium stabilized | Heat cycles, automotive |
| 347 | Nb-stabilized | Weld heat resistance |
| Grade | Finish | Price (INR/kg) | Price (USD/kg) |
| 304/304L Welded | 2B/Polish | ₹ 260 – ₹ 330 | $3.20 – $4.00 |
| 316/316L Welded | BA/Polished | ₹ 330 – ₹ 420 | $4.10 – $5.30 |
| 310 Welded Tubes | Mill | ₹ 600 – ₹ 800 | $7.50 – $10.00 |
| 321 / 347 Welded | Polished | ₹ 450 – ₹ 650 | $5.50 – $8.25 |
| A554 Sq / Rect | Mirror | ₹ 300 – ₹ 450 | $3.70 – $5.40 |
| Heavy Wall | Mill | ₹ 380 – ₹ 550 | $4.80 – $7.00 |
Final price depends on OD/WT, finish, test certificates & delivery location.
Mandatory Tests
Advanced Tests
Finish & Sanitary Tests
Documentation
INOX STEEL INDIA is trusted by OEMs, fabricators, EPC contractors, pharmaceutical equipment companies, food processors, architects, and heat exchanger manufacturers because we deliver precision-welded stainless tubes with international-standard finishing and dimensional accuracy.
Customers searching for:
Choose INOX STEEL INDIA because:
| Industry | Applications | Grades |
|---|---|---|
| Pharma & Food | Sanitary tubing, manifolds | 316L |
| Chemical / Petrochemical | Corrosive fluid lines | 316L, 317L |
| Automotive | Exhaust, EGR, fuel lines | 321, 347, 310 |
| Heat Exchangers | A249/A269 tubes | 304/316 |
| HVAC & Refrigeration | Chillers, condensers | 304/316 |
| Architecture / Fabrication | Square/rectangular polished tubes | 304/316 |
| Furniture & Interiors | Decorative tubes | 304 mirror polish |
| OEM Machinery | Frames, handles, brackets | 304/316 |
STANDARD PACKAGING
EXPORT PACKAGING
DOCUMENTATION
For SS Welded Tubes in 304/316/321/347/310 — round, square, rectangular & polished tubes — contact INOX STEEL INDIA.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
steel@inoxsteelindia.in
+91 9930796690
Yes — A270 tubes in 316L are used in dairy, food, pharma, and WFI lines.
From 1/8 inch to 10 inch, including round, square, rectangular, oval, and schedule 80 heavy-wall tubes.
7306.40.00
316L due to molybdenum for pitting resistance.
Yes — we cover Ahmedabad, Surat, Vadodara, Rajkot & all industrial belts.
TIG / Laser / Plasma welding depending on thickness & finish requirement.
Leading manufacturer of Stainless Steel Welded Tubes in 304/304L/316/316L/321/347/310. Round, square, rectangular tubes for pharma, food, chemical, architectural & mechanical use. Standards A249/A269/A270/A554. Supplier in Mumbai & Gujarat. Exporter to GCC, EU & USA.