SS 304/304L Buttweld Fittings Manufacturers in India

We are a leading stainless steel 304/304L buttweld fittings (ASME B16.9) manufacturers, with standard sizes available for immediate dispatch. We manufacture, stock and sale ss 304 buttweld fittings in seamless, welded or fabricated type with either mill finish or polished surface. Mill finish (Annealed & Pickled) stainless steel 304 buttweld fittings are generally used for industrial applications, where as polished ss 304 buttweld fittings are used for architectural and structural applications. We sincerely welcome new and old customers to co operate with us for all their stainless steel 304 buttweld fittings requirements. Stainless steel 304 butt weld pipe fittings is designed to be welded on site at its end to connect pipes together and allow change in direction or pipe diameter, or branching or ending. The key specification for stainless steel 304 buttweld fittings are the ASME B16.9 and the MSS SP 43 (that integrates ASME B16.9 for stainless steel, duplex, and nickel alloy BW fittings). Our production range for SS 304 butt weld pipe fittings ranges for 1/2″ NB to 48″ NB in thickness upto 20mm. Metline has developed itself as a leading 304 buttweld fittings manufacturer and supplier to the global market. Apart from stainless steel buttweld fittings and carbon steel seamless buttweld fittings for the oil and gas industry, we specialise in the export of OCTG, Line Pipes, Structural Pipes and Pipes for Mechanical Engineering. Metline holds a large stock of SS 304 butt welding fittings according to ANSI/ASME. Our stocking program includes seamless butt welding fittings from 1/2 in. to 12 in. and welded butt welding fittings from 1/2 in. to 36 in. The thickness range covers 5S to Schedule 160.

ProductStainless Steel 304 Butt Weld Pipe Fittings
EquivalentsWNR. 1.4301, UNS S30400, AISI 304, AISI 304L, 1.4306, UNS S30403
SpecificationASME B16.9, MS SP 43
Size1/2″ to 48″, Thickness: SCH 5S, 10S, 40S (STD), 80S (XS), 160, XXS
TypeSeamless, Welded, 100% X Ray Welded
FormsElbows, Tees, Reducers, Crosses, Caps, Stub Ends
FinishAnnealed & Pickled, Polish
PackingWooden Box or Crates
ServicesCutting, Beveling, Threading, Polishing
Stainless Steel 304 Buttweld Fittings Manufacturers, Suppliers in India

We Sell High Quality SS 304 Butt Weld Pipe Fittings at Reasonable Prices!

High Quality, But Low Prices for SS 304 Buttweld Fittings!

If you are looking for high quality stainless steel 304 buttweld fittings manufacturer, contact us on or +919987448842

What is a Buttweld Fitting? What are the Features and Advantages of Buttweld Fittings?

A Butt Weld Pipe Fitting is defined as a part used in a piping system, for changing direction, branching or for change of pipe diameter, and which is mechanically joined to the system. There are many different types of fittings and they are the same in all sizes and schedules as the pipe. Buttweld fittings are widely uses in the petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler heat exchanger, and other fields.

There are many different types of butt weld fittings. We offer all of the most varieties, including the following:

  • Bend, End Cap, Coupling, Elbow, Nipple, Branch Outlets, Reducer, Stub Ends, Tee, 45 Elbow, Reducing Elbow, Reducing Tee, Barred Tees, 90 Elbow LR & SR, Concentric Reducer, Eccentric Reducer, 180 Return Bend, 3R & 5R Bends, Cross, Lateral, Reducing Lateral, Swage Nipple

Advantage of Using Buttweld Fittings

  • Buttweld fittings allow strong, and leak-proof, piping connections
  • They minimize pressure drops and the turbulence inside the pipeline
  • These type of fittings have a long service life
  • Butt weld pipe fittings are low cost alternative to forged fittings and are more easy to deploy

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 %
3040.08 max.2.00 max.1.00 max.0.045 max.0.03 max.18.0 – 20.08.0 – 10.5Balance
304L0.03 max.2.00 max.1.00 max.0.045 max.0.03 max.18.0 – 20.08.0 – 12.0Balance
304H0.04-0.102.00 max.1.00 max.0.045 max.0.03 max.18.0 – 20.08.0 – 12.0Balance

Equivalents of 304 Stainless Steel

UNS Designation & International Equivalent for Stainless Steel 304

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

Melting Range,℃1400 ℃1400 ℃1400 ℃
Elongation %404040
Tensile Strength (Mpa)515485515
Yield Strength (Mpa)205170205
Hardness (Brinell)201201201

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

GradeDensity (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)
0-1000C0-3150C0-5380Cat 1000Cat 5000C

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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