Welcome to LG Pipes India

SS 304 Welded Pipe, Stainless Steel 304 UNS S30400 Seamless Pipes & Tubes

Stainless steel 304 pipe is actively manufactured, traded, and stocked at L.G. Pipes And Tubes it is a Mumbai-based company supplying the best quality of stainless steel 304 pipes with its other steel products around the globe. The Stainless steel 304 Pipe usually works as a heat exchanger between two or more fluids, being an affordable pick it is often used for commercial purposes. The Stainless steel 304 pipe provides protection from corrosion and pitting, it has a minimum yield strength of 205 MPa and high tensile strength of 515 MPa which gives longer durability and better quality, leaving next to no dent to the buyers pocket.

The chromium oxide acts as the protective skin for the metal retaining it from corrosion and has a high operating temperature of up to 870 degrees Celsius, hence it is actively applied profusely. The Stainless steel 304 pipes are made in a seamless and welded form for different purposes. Digging into the details the Chemical composition for the stainless steel 304 pipe is basically known as Chromium-Nickel austenitic alloy.

Original Photograph Of Stainless Steel 304 Pipe & Tube At Our Warehouse, Mumbai

It consists minimum 18% of chromium and 8% of Nickel, combined with a maximum of 0.08% carbon. It also consists of other chemical components which provide its basic anti-corrosive properties. All of these provide it long durability. The chemical plant, power station, refrigeration, petrochemical plants, petroleum refineries, and more are always in an active need of these stainless steel 304 pipes.

These pipes have greater quality, good strength as mentioned above. At L.G. Pipes And Tubes the product is made and delivered at a desired quality, thickness and various diameters as per the clients specifications. It is also readily available at better prices. The Stainless steel seamless or welded 304 pipes go under rigorous testing and are industry certified. These pipes are made in various forms and thicknesses as per the set standards and are quality checked.

  • Specifications - ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
  • Size - Seamless 304 Pipes & Tubes - 1/2" NB - 16" NB
  • ERW 304 Pipes & Tubes - 1/2" NB - 24" NB
  • EFW 304 Pipes & Tubes - 6" NB - 100" NB
  • Wall Thickness - Schedule 5S - Schedule XXS.
Dimensions : ASTM, ASME and API
Schedule : SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / ERW / Welded / Fabricated / LSAW Pipes
Length : Single Random, Double Random & Cut Length.
Form : Round, Square, Rectangular, Hydraulic Etc.

Composition ranges for stainless steel 304 grade


C Mn Si P S Cr Mo Ni N


min. - - - - - 18.0 - 8.0 -
max. 0.08 2.0 0.75 0.045 0.030 20.0 10.5 0.10

Mechanical properties of stainless steel 304 grade

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304 515 205 40 92 201

304H also has a requirement for a grain size of ASTM No 7 or coarser.

Physical properties of stainless steel 304 grade in the annealed condition


Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/°C) Thermal Conductivity(W/m.K) Specific Heat 0-100°C(J/kg.K) Electrical Resistivity (n.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C


8000 193 17.2 17.8 18.4 16.2 21.5 500 720

Specifications for stainless steel 304 grade

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
304 S30400 304S31 58E 1.4301 X5CrNi18-10 2332 SUS 304