Yash Fittings, located at Mumbai, India, is one of the leading producers and exporters of high-quality industrial pipe fittings, well-known for precision engineering and reliability. Among its extensive product line are Stainless Steel 309 Pipe Fittings, suitable for applications involving high temperatures and appreciated for their excellent resistance to oxidation and corrosion. They are manufactured using Grade 309 stainless steel, with high chromium and nickel content, so they provide long-lasting performance. Yash Fittings ensures that every product is of international quality standards, thus making them suitable for thermal, chemical, and furnace-based industrial processes.
| Specifications | : | ASTM A403 ASME SA 182 |
| Tube Size | : | 1/16”OD to 2”OD, 2mm OD to 50mm OD |
| Thread | : | NPT, BSP, BSPT, UNF, ISO, SAE etc. |
| Pressure Rating | : | 6000PSI for Stainless Steel, 300/1000/3000PSI for Brass |
Stainless Steel 309 Pipe Fittings have an ideal combination of chemical, mechanical, and physical properties. Chemically, they are composed of 22–24% chrome and 12–15% nickel, giving them superior oxidation resistance at temperatures between 1000°C. Mechanically, they have high tensile strength (around 620 MPa), good yield strength, and excellent resistance to scaling due to heat and thermal fatigue. Physically, the fittings have high temperature stability, are non-magnetic when in the annealed state, and are good welds. These characteristics enable them to work well under prolonged exposure to excessive heat and corrosion.
| Grade | C | Mn | Si | P | S | Cr | Ni | FE |
| SS 309 | 0.20 max. | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 22.0 – 24.0 | 12.0 – 15.0 | Balance |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 309 | 7.8 g/cm3 | 1200 ℃ | 586 MPa | 310 MPa | 40 % | 202 |
Yash Fittings one of the largest suppliers of Stainless Steel 309 Pipe Fittings in Mumbai, 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 309 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 309 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 309 Pipe Fittings from Yash 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 | WNR. | AFNOR | EN | JIS | BS | GOST |
| SS 309 | S30900 | 1.4828 | – | – | SUS 309 | – | – |
Stainless Steel 309 Pipe Fittings offer superior heat resistance, making them ideal for high-temperature applications up to 1000°C. Their excellent oxidation and corrosion resistance ensure durability in harsh environments, including those exposed to acids and high humidity. These fittings exhibit high tensile and yield strength, ensuring reliability in demanding industrial settings. Easy to fabricate and weld, they maintain structural integrity during thermal cycling. With good toughness and creep resistance, Stainless Steel 309 fittings are perfect for applications in furnaces, heat exchangers, and petrochemical industries, delivering long-lasting performance and versatility.
| All Fittings | 90°and 45° Ells and Tees | Reducers and Lap Joint Stub | Caps | 180° Returns | Angularity Tol | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Plane Size (NPS) | Outside(1) Diameter at Bevel | Inside(1) Diameter at End | Wall(2) Thickness | Centre-to- End Dimension A,B,C,M | Overall Length L | Overall Length E | Centre-to- Centre Dimension O | Back-to- Face Dimension K | Alignment at Ends U | Nominal Pipe SIze | Off Angle Q | Off Angle P |
| 1/2 TO 2-1/2 | +1/16 | ±1/32 | Not less than 87-1/2% of Normal Thickness | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 12 to 4 | 1/32 | 1/16 |
| -1/32 | 5 to 8 | 1/16 | 1/8 | |||||||||
| 3 TO 3-1/2 | ±1/16 | ±1/16 | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 10 to 12 | 3/32 | 3/16 | |
| 4 | ±1/16 | ±1/16 | ±1/16 | ±1/16 | ±1/8 | ±1/4 | ±1/4 | ±1/32 | 14 to 16 | 3/32 | 1/4 | |
| 5 TO 8 | +1/32 | ±1/16 | ±1/16 | ±1/16 | ±1/4 | ±1/4 | ±1/4 | ±1/32 | 18 to 24 | 1/8 | 3/8 | |
| -1/16 | ||||||||||||
| 10 TO 18 | +1/16 | ±1/8 | ±3/32 | ±3/32 | ±1/4 | ±3/8 | ±1/4 | ±1/16 | All dimensions are in inches | |||
| -1/8 | ||||||||||||
| 20 TO 24 | +1/4 | ±3/32 | ±3/32 | ±3/32 | ±1/4 | ±3/8 | ±1/4 | ±1/16 | ||||
| -3/32 | ||||||||||||
Yes, custom sizes are available for Stainless Steel 309 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@yashfittings.com
Stainless Steel 309 Pipe Fittings are extensively used in high-temperature service applications. They find wide application in furnace parts, heat exchangers, kilns, and thermal processing equipment. Petrochemical, power generation, cement, and metallurgy industries trust these fittings due to their resistance to thermal cycling and oxidation. They also perform well in exhaust applications, refinery operations, and chemical processing use. Their corrosion, scaling, and high-temperature deformation resistance allows for long-term operation in extreme industrial conditions.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.








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