Chennai, India, has established itself as a reliable center for producing and supplying Stainless Steel 309S Pipe Fittings, serving industries that demand exceptional resistance to heat, oxidation, and corrosion. This low-carbon variant of SS 309 is specifically designed to enhance weldability and minimize the risk of sensitization during high-temperature applications. Manufacturers in Chennai provide a comprehensive selection of pipe fittings—including elbows, tees, reducers, caps, and stub ends—crafted in accordance with ASTM A403 and ASME B16.9 standards. These fittings find extensive use in thermal processing, heat exchangers, power plants, and chemical industries, ensuring dependable performance even at high temperatures.
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Typically, Stainless Steel 309S Pipe Fittings consist of 22–24% chromium and 12–15% nickel, with a carbon content capped at 0.08%. This unique composition grants them remarkable resistance to oxidation, sulfidation, and various forms of corrosion at temperatures reaching up to 1000°C. They boast a tensile strength of around 520 MPa and a yield strength of approximately 205 MPa. The low carbon content not only improves weldability but also reduces carbide precipitation during welding, which is crucial for preserving corrosion resistance in heat-affected zones. SS 309S also retains good strength, toughness, and formability, whether in hot or cold working conditions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 304 | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0-20.0 | – | 8.0-10.5 | 0.10 |
| 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 |
Meet Fittings one of the largest suppliers of Stainless Steel 304 Pipe Fittings in Chennai, India. We specialize in providing a wide range of high-quality, durable fittings for various industrial applications. Our inventory includes elbows, tees, reducers, couplings, and other essential fittings designed to offer exceptional corrosion resistance and strength. Stainless Steel 304 is known for its cost-effectiveness and excellent mechanical properties, making it ideal for industries such as construction, chemical processing, and food processing. With a commitment to customer satisfaction, timely delivery, and competitive pricing, we are the trusted choice for Stainless Steel 304 Pipe Fittings in the India.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 304 Pipe Fittings from Meet Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| Nominal Pipe Size | Outside Diameter | 90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
(inches) | Long Radius | Short Radius | Long Radius | Long Radius | ||||
(mm) | (inches) | Center to Face (inches) | Center to Face (inches) | Center to Face (inches) | Radius (inches) | Center to Center (inches) | Back to face (inches) | |
1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
3/4 | 26.7 | 1.050 | 1 1/8 | – | 7/16 | 2 1/4 | 1 11/16 | |
1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
Stainless steel 304 pipe fittings provide excellent corrosion resistance, making them ideal for use in harsh environments and applications such as chemical processing and food processing Their high strength ensures it works longer, and reduces maintenance costs. They exhibit high strength and resist high temperatures, making them suitable for complex applications. These features are easy to assemble and manufacture, allowing for efficient installation. In addition, their smooth surface reduces contamination and aids cleaning properties. The cost-effective and versatile SS 304 pipe fittings offer reliable performance in a variety of industries including marine, construction and chemical.
Yes, custom sizes are available for Stainless Steel 304 Pipe Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@meetfitings.co.in.
| Density lbm/in3 | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10-6) | Modulus of Elasticity (psi x 106 | Coefficient of Thermal Expansion (in/in)/ °F x 10-6 | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
|---|---|---|---|---|---|---|
| SS 304/304L | ||||||
| at 68°F: 0.285 | 9.4 at 212°F | 28.3 at 68°F | 28 | 9.4 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500 to 2590 |
| 12.4 at 932 °F | 39.4 at 752°F | 10.2 at 32 – 1000°F | ||||
| 49.6 at 1652 °F | 10.4 at 32 – 1500°F | |||||
These Stainless Steel 309S Pipe Fittings are widely utilized in settings that involve high heat and corrosive environments. In the power generation and thermal processing sectors, they are integral to furnace components, superheaters, and boiler tubes. The petrochemical industry uses them in flare stacks, catalytic converters, and heat exchangers. Additionally, SS 309S fittings are well-suited for incinerators, kilns, annealing covers, and exhaust systems. Their outstanding resistance to thermal cycling and oxidation makes them perfect for both continuous and intermittent high-temperature service, providing long-lasting reliability and minimizing maintenance needs in challenging industrial applications.








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