SS 304/304L Square Pipe Manufacturers in India

We are a leading stainless steel 304 square pipe manufacturers, with ex stock inventory of 600 tons. We manufacture, stock and sale ss 304 square pipes in seamless and welded type with either mill finish or polished surface. Mill finish (Annealed & Pickled) stainless steel 304 square pipes are generally used for industrial applications, where as polished ss 304 square pipes are used for architectural and structural applications. Given our daily sales volume of 20-30 tons of stainless steel 304/304L square pipes in India, we are capable of offering our customers with the best quality at lowest prices in the industry. We sincerely welcome new and old customers to co operate with us for all their stainless steel 304 square pipes requirements.

SS 304 square pipes are manufactured from plate or from continues coil or strips. To manufactured SS 304 square pipe, first, plate or coil is rolled in the circular section with the help of plate bending machine or by a roller in the case of continues process. There are two ways in which we can produce square pipes:

  • Made on Pipe Mill – We can produce stainless steel square pipes in sizes upto 100mm on a pipe mill
  • Large Size Square Pipes Made by Drawing – Large size square shaped pipes are typically produced by making a round pipe and then forming it into a square, rectangular, or other shape.

We have automatic machine to produce SS 304 square pipes, and maintain sizes and to match the most precision engineering requirements of our customers.

Product Stainless Steel 304 Square Pipes
Equivalents WNR. 1.4301, UNS S30400, AISI 304, AISI 304L, 1.4306, UNS S30403
Specification ASTM A 312/ASME SA 312, ASTM A 358/ASME SA 358, ASTM A554
Size 10mm x 10mm to 500mm x 500mm, Thickness: 20mm
Length (mm) 6000, 3000, 2000, 12000, Custom Length
Finish Annealed & Pickled, 2B, No.4, Mirror, Polish
Packing Bundled Packing
Services Cutting, Beveling, Threading, Polishing
SS 304 304L Square Pipe Manufacturers, Suppliers, Factory

We Sell High Quality SS 304 Square Pipes at Reasonable Prices!

High Quality, But Low Prices for SS 304 Square Pipe!

If you are looking for high quality stainless steel 304 square pipe manufacturer, contact us on sales@metline.in or +919987448842

What is 304 Stainless Steel? About 304 Stainless Steel

Stainless steel 304(SS304) is the most basic stainless steel known as 18-8 grade with higher chromium and low carbon content. The low carbon content restricts carbide precipitation during welding as well as minimizes its susceptibility to intergranular corrosion. Stainless steel 304L(SS304L) is an extra low-carbon variation of SS304 with a 0.03% maximum carbon content that eliminates carbide precipitation due to welding. Both SS304 and SS304L have excellent resistance to a wide range of atmospheric, chemical and petrochemical, and food industry corrosions. Usually, they can be used in applications with the maximum temperature of 1650°F[900°C] exhibiting good oxidation resistance.

304L alloy’s lower carbon content helps minimize/eliminate carbide precipitation during the welding process. This allows 304L stainless steel to be used in the “as-welded” state, even in severe corrosive environments.

If you were to use standard 304 stainless in the same way, it would degrade much faster at the weld joints.

Basically, using 304L eliminates the need to anneal weld joints prior to using the completed metal form—saving time and effort.

In practice, both 304 and 304L can be used for many of the same applications. The differences are often minor enough that one isn’t considered massively more useful over the other. When stronger corrosion resistance is needed, other alloys, such as grade 316 stainless steel, are usually considered as an alternative.

Chemical Composition of 304 Stainless Steel, WNR. 1.4301, UNS S30400

Chemical Composition %
  C Mn Si P S Cr Ni Fe
304 0.08 max. 2.00 max. 1.00 max. 0.045 max. 0.03 max. 18.0 – 20.0 8.0 – 10.5 Balance
304L 0.03 max. 2.00 max. 1.00 max. 0.045 max. 0.03 max. 18.0 – 20.0 8.0 – 12.0 Balance
304H 0.04-0.10 2.00 max. 1.00 max. 0.045 max. 0.03 max. 18.0 – 20.0 8.0 – 12.0 Balance

Equivalents of 304 Stainless Steel

UNS Designation & International Equivalent for Stainless Steel 304
Type UNS JIS EN/DIN EN/BS EN/NF ISO GB GOST
304 S30400 SUS304 X5CrNi18-10 304S31 Z7CN18.09 11 0Cr18Ni9 08KH18H10
304L S30403 SUS304L X2CrNi19-11 304S11 X2CrNi19-11 10 00Cr19Ni11 03KH18H11

Mechanical Properties for WNR. 1.4301, UNS S30400, 304 Stainless Steel

  304 304L 304H
Density 8 8 8
Melting Range,℃ 1400 ℃ 1400 ℃ 1400 ℃
Elongation % 40 40 40
Tensile Strength (Mpa) 515 485 515
Yield Strength (Mpa) 205 170 205
Hardness (Brinell) 201 201 201

Physical Properties of WNR. 1.4301, UNS S30400, 304 Stainless Steel

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/0C) Thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
304 8000 193 17.2 17.8 18.4 16.2 21.5 500 720

Applications of WNR. 1.4301, UNS S30400, 304 Stainless Steel

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

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