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SS 304 Seamless Pipe Manufacturers

SS 304 Square Tube Manufacturers in India

Steelage Alloys can be described as one of the best producers of SS 304 Square Tube products in India with its reputation of producing high quality stainless steel products that are used in various industrial purposes. We produce our SS 304 square tubes with raw materials that are of high quality and production technology in order to make them very strong, durable and resistant to corrosion.

Steelage Alloys as a reliable supplier and exporter of steel square tubes provides the customized project requirements of SS 304 square tubes in different sizes, thickness, and specifications. One of the most general and most utilized types of stainless steel SS 304 has great capability in working well, resistance to oxidation, and even in severe conditions. To achieve the international-standard quality, our tubes go through a rigorous quality test, which comprises of mechanical, chemical and non-destructive test.

Introduction to Stainless Steel 304 Square Tube

Our square pipes and tubes are most suitable in places where strength, symmetry, and clean design are crucial. They have applications in railings, supporting structures, automobile frames, furniture, and general engineering services. SteelAge Alloys adheres to quality excellence and delivers custom square tubes of multiple sizes, thicknesses, and surface finishes, such as polished, satin, and other multiple finishes. We deliver SS 304 square tubes with technical support at satisfactory prices due to our reputation and expertise in the manufacturing of pipe and tubes. Our products deliver secure functionality and provide an attractive aesthetic look in both structural as well as decorative-based applications.

Why Choose SS 304 Square Tube?

Our SS 304 square tubes are favored for their superior resistance to oxidation and corrosion, making them ideal for both indoor and outdoor applications. These tubes provide high strength with good formability and weldability. Their hygienic surface and robustness suit food processing, pharmaceutical, chemical, and petrochemical industries.

Technical Specifications of SS 304 Square Tube

Parameter Specification Standard
Size (Square) 12.7 mm to 100 mm ASTM A554 / A312
Wall Thickness 0.5 mm to 10 mm Customizable
Length Up to 12 meters Fixed or per order
Tensile Strength Min. 515 MPa ASTM A554
Yield Strength Min. 205 MPa ASTM A554
Elongation ≥ 40% ASTM A554
Density 8.0 g/cm³ Standard
Surface Finish Polished, Brushed, Mirror Customer specified
Corrosion Resistance Excellent Suitable for chemical, food-grade use

Manufacturing Process Overview

  • Select SS 304 stainless steel coils or sheets.
  • Cut coils into strips or sheets of required width.
  • Roll strips into a square tube shape using rollers.
  • Weld the edges (usually high-frequency welding).
  • Shape and size the tube to precise square dimensions.
  • Anneal to relieve stress (optional).
  • Cut tubes to required lengths.
  • Clean, pickle, and polish for corrosion resistance.
  • Check dimensions, weld quality, and finish.

Key Features and Benefits of SS 304 Square Tube

  • Corrosion Resistance: Excellent resistance to rust and corrosion in various environments.
  • Durability: Strong and tough, suitable for structural applications.
  • Aesthetic Finish: Smooth, shiny surface that can be polished.
  • Weldability: Easy to weld without losing strength or corrosion resistance.
  • Formability: Can be easily formed, bent, or fabricated.
  • Heat Resistance: Maintains strength and shape under high temperatures.
  • Non-Magnetic: Mostly non-magnetic in annealed condition.
  • Hygienic: Easy to clean, ideal for sanitary applications.

SS 304 Square Tube vs Other Stainless Steel Grades

Feature SS 304 SS 316
Corrosion Resistance Good, suitable for most environments Superior, especially in chloride or marine environments
Cost More economical Higher cost
Applications General use, food processing, architecture Marine, chemical, pharmaceutical
Nickel Content 8–10.5% 10–14%

How to Choose the Right SS 304 Square Tube

  • Dimensions: Width, height, wall thickness, and length based on structural requirements.
  • Surface Finish: Polished, brushed, or mill finish depending on aesthetics and application.
  • Welding and Fabrication Needs: Ensure the tube’s grade and finish suit your manufacturing process.
  • Load and Stress Requirements: Mechanical properties should meet your application’s strength needs.
  • Compliance with Standards: Verify certification to relevant ASTM, EN, or other standards.
  • Supplier Reliability: Choose reputable manufacturers or distributors who provide test reports and quality assurance.

Customization Options

  • Custom lengths, wall thicknesses, and diameters possible
  • Options for surface treatments (polished, pickled, annealed) as per project needs
  • Value-added services such as CNC cutting, bending, and packaging to suit installation and logistics requirements

Packaging and Delivery

Steelage Alloys ensures safe and secure delivery of pipes. Each pipe is packed using:

  • Wooden Boxes or Crates
  • Plastic Caps on Both Ends
  • Waterproof Wrapping
  • Marking with Grade, Size, and Batch Number

Main Grades

202

304

304L

316

316L

309

310

317

317L

321

347

904

Duplex Stainless Steel 2205

Duplex Stainless Steel 2507

Manufacturing Process

Square Pipe/Tube

hastelloy round bar

Strip

Cut to Length

Inspection

Analytic

Analytic

Centering

Slitting

Heating

Auto-welding

Perforation

Seam-grinding

Inspection of Size

Cut to Length

Pickling

Lubricating

Cold Drawing

Cold Drawing (Cold Rolling)

Degreasing

Degreasing

Annealing

Annealing

Straightening

Straightening

Annealing

Pickling

Straightening

Flat End

Cut

X-ray Test

Pickling / Passivating

Hydro-statio Test

Inspection

Pickling / Passivating

Inspection

Inspection

Analytic

Analytic

Marking

Marking

Packing & Shipping

Packing & Shipping

Drawing & Formula

Formula : m = (A × 4/3.14- THK) × THK × L (m) × 0.02491
* For 316, 316L, 310S, 309S, etc., ratio=0.02507
A = Side Width, THK = Wall Thickness, L = Length

Package

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Plastic Bag

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Wooden case

Logistics

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By Sea

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By Air