ss 304 seamless pipe manufacturers in india

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SS 304 Seamless Pipe Manufacturers

SS 304 Seamless Pipe Suppliers in India - Steelage Alloys

Steelage Alloys is a well-known name in the field of SS 304 Seamless Pipe manufacturing and supply in India. With years of experience and advanced technology, the company has become a reliable source for stainless steel seamless and welded pipes, tubes, fittings, and flanges. we use top-grade raw materials and advanced manufacturing processes to ensure the highest standards of quality. Our SS 304 seamless pipes are known for their durability, corrosion resistance, high strength, and excellent surface finish, making them ideal for critical applications in industries like oil & gas, petrochemicals, pharmaceuticals, food processing, and construction.

Introduction to Stainless Steel 304 Seamless Pipes

SS 304 seamless pipes represent the backbone of modern industrial piping due to their corrosion resistance, strength, and versatility. These pipes are manufactured from austenitic stainless steel containing 18% chromium and 8% nickel, making them ideal for high-temperature and high-pressure conditions as well as environments requiring high hygiene and reliability. Seamless pipes are manufactured without any welding or joints, ensuring consistent mechanical properties and leak-proof performance.

Why Choose SS 304 Seamless Pipes?

  • Excellent corrosion resistance in various environments
  • High mechanical strength and toughness
  • Superior weldability and formability
  • Hygienic properties suitable for food and pharmaceutical industries
  • Leak-proof construction essential for critical high-pressure applications

Technical Specifications of SS 304 Seamless Pipes

Property Details (SS 304)
Outer Diameter (OD) 6.35 to 114.3 mm
Wall Thickness 0.8 to 12.7 mm
Length Up to 26 meters
Density 8.0 g/cm³
Tensile Strength 515 MPa (min.)
Yield Strength 205 MPa (min.)
Elongation 35%
Melting Point 1400°C
Standards ASTM A312 / A213 / A358 etc.
Finishes Polished, Matt, Annealed
Schedule 10, 40, 80 (varied as per spec)

Manufacturing Process Overview

  • Pipes are produced using extrusion and pilgering from stainless steel billets.
  • Solution annealing process is adopted to relieve stresses and provide uniform mechanical properties.
  • Non-destructive testing (NDT), hydrostatic testing, and ultrasonic inspection are performed to assure quality.
  • Dimensional checks including wall thickness, diameter, and length are meticulously verified.

Key Features and Benefits of SS 304 Seamless Pipes

  • High Corrosion Resistance – Performs exceptionally well in acidic and oxidizing environments.
  • Excellent Weldability – Easy to fabricate and join using standard welding methods.
  • Temperature Resistance – Retains strength and stability at high temperatures.
  • Smooth Finish – Seamless design offers a clean, polished surface ideal for hygiene-critical industries.
  • Long Service Life – With minimal maintenance, these pipes offer extended durability.

Chemical Composition of SS 304

The strength and corrosion resistance of SS 304 pipes come from their unique composition:

Element Content (%)
Chromium (Cr) 18.0 – 20.0
Nickel (Ni) 8.0 – 10.5
Carbon (C) ≤ 0.08
Manganese (Mn) ≤ 2.00
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.03

Dimensional Range & Standards

Manufacturers supply SS 304 seamless pipes in an extensive range of sizes and schedules, consistently adhering to international quality specifications:

Property Range
Outer Diameter (OD) 6.35 to 114.3 mm
Wall Thickness 0.8 to 12.7 mm
Length Up to 26 m
Pipe Sizes 1/8” to 26” OD

Mechanical Properties of SS 304 Seamless Pipes

Property Value
Tensile Strength (min) 515 MPa
Yield Strength 0.2% Proof (min) 205 MPa
Elongation (% in 50 mm, min) 40
Hardness (Rockwell B, max) 92
Hardness (Brinell, max) 201
Density 8.0 g/cm³
Modulus of Elasticity 193 GPa
Melting Point ~1400°C

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

Seamless Pipe/Tube

hastelloy round bar

Round Bar

Analytic

Analytic

Cut to Length

Cut to Length

Centering

Centering

Heating

Heating

hastelloy round bar

Perforation

Inspection of Size

Inspection of Size

Pickling

Pickling

Inspection of Surface

Inspection of Surface

Lubricating

Lubricating

Cold Drawing (Cold Rolling)

Cold Drawing

Degreasing

Degreasing

Annealing

Annealing

Cut

Cut

Straightening

Straightening

Pickling / Passivating

Pickling / Passivating

Inspection

Inspection

Analytic

Analytic

Marking

Marking

Packing & Shipping

Packing & Shipping

Drawing & Formula

SS 304 seamless tube suppliers, manufacturer

Formula: m = (OD - THK) × THK (mm) × L (m) × ρ (g/cm³) × π ÷ 1000
OD = Outside Diameter, THK = Wall Thickness, L = Length
ρ = Density, π = 3.1415926...

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