Ferdi Fittings is a leading manufacturer and supplier of Stainless Steel 309S Pipe Fittings in Istanbul, Turkey. SS 309S provides excellent resistance to high-temperature oxidation and scaling, making it suitable for demanding industrial environments. Ferdi Fittings offers these fittings in various sizes and specifications that meet ASTM/ASME standards. They are widely used in heat treatment equipment, industrial furnaces, and chemical processing plants, ensuring reliable, leak-proof connections. Known for their durability and weldability, 309S fittings are ideal for high-temperature piping systems in refineries, power plants, and the petrochemical industry.
| Product | Stainless Steel 309S Pipe Fittings |
| Equivalents | (UNS S30908, 1.4833) |
| Standard | ASTM A403 / ASME SA403 |
| Items | Pipe Fittings |
| Size | Seamless Elbow ( 1/2″～24″), ERW / Welded / Fabricated Elbow (1/2″～48″) |
| Dimensions | ASME / ANSI – B 16.9, ASTM A403 – ASME SA403, ASME B16.9, ASME B16.25, ASME B16.28, MSS SP-43. |
| Schedule | Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc. Custom Thickness |
| Fittings Type | Butt Weld, Screwed & Socket Weld, Flanges, Instrumentation |
| Other Fittings Type | Elbows, Tees, Reducers, Caps, Stub Ends, Flanges (ANSI, Table E, D and H), Nuts, Bolts, Screws, Threaded Bars, Seamless, Welded, Elbow, Tee, Cross, Concentric & Eccentric Reducer, Pipe End Caps, Stub Ends, Bends, Dairy Fittings, etc. |
| Specifications | ASTM, ASME, DIN, GOST, JIS |
| Certification | EN 10204 |
SS 309S contains 22-24% chromium, 12-15% nickel, low carbon (~0.08%), and trace amounts of manganese, silicon, phosphorus, and sulfur. Mechanical properties include tensile strength of ~515 MPa, yield strength of ~205 MPa, elongation of ≥40%, and Brinell hardness of ~150-190 HB. It provides excellent strength at high temperatures, oxidation resistance, and weldability. The alloy maintains its size at elevated temperatures and resists sensitization during welding, ensuring durability in critical applications.
| ELEMENT | SS 309S |
|---|---|
| NI | 12.0 – 15.0 |
| C | 0.08 max |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | 0.75 max |
| 309 | 309S | |||
|---|---|---|---|---|
| Typical | Minimum | Typical | Minimum | |
| Tensile Strength MPa | 560 | 515 | 540 | 515 |
| Proof Stress(0.2% Offset) MPa | 285 | 205 | 280 | 205 |
| Elongation (Percent in 50mm) | 54 | 40 | 54 | 40 |
| Hardness (Brinell) | 164 | – | 159 | – |
| Endurance (fatigue) limit, MPa | 260 | – | 260 | – |
Ferdi Fittings one of the largest suppliers of Stainless Steel 309S Pipe Fittings in Istanbul, Turkey. 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 309S 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 309S Pipe Fittings in the Turkey.
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 309S Pipe Fittings from Ferdi 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. |
|---|---|---|
| SS 309S | S30908 | 1.4828 |
Stainless Steel 309S Pipe Fittings offer outstanding heat and oxidation resistance, making them ideal for high-temperature applications up to 1000°C. Their low carbon content enhances weldability, reducing the risk of intergranular corrosion and ensuring long-lasting durability. These fittings exhibit excellent resistance to thermal cycling and are highly resistant to corrosion in both acidic and alkaline environments. They maintain structural integrity under high-pressure conditions and offer superior strength, flexibility, and toughness. Stainless Steel 309S fittings are easy to fabricate, providing reliable and efficient solutions for industries such as petrochemical, power generation, and chemical processing.
| Nominal PipeSize | 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 |
Yes, custom sizes are available for Stainless Steel 309S 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@ferdifittings.com.
| NPS (inch) | Pipe Sch. | Wall Thk. (in) | OD (inch) | Temperature | ||||
|---|---|---|---|---|---|---|---|---|
| 100 | 200 | 300 | 400 | 500 | ||||
| Allowable Stress (Pressure Rating) | ||||||||
| 16700 | 16700 | 16700 | 15500 | 14400 | ||||
| 1″ | 40 | 0.133 | 1.315 | 2205 | 2205 | 2205 | 2047 | 1902 |
| 80 | 0.179 | 1.315 | 3061 | 3061 | 3061 | 2841 | 2640 | |
| 160 | 0.250 | 1.315 | 4493 | 4493 | 4493 | 4170 | 3874 | |
| 1 1/2″ | 40 | 0.145 | 1.900 | 1629 | 1629 | 1629 | 1512 | 1404 |
| 80 | 0.200 | 1.900 | 2303 | 2303 | 2303 | 2138 | 1986 | |
| 160 | 0.281 | 1.900 | 3362 | 3362 | 3362 | 3120 | 2899 | |
| 2″ | 40 | 0.154 | 2.375 | 1371 | 1371 | 1371 | 1272 | 1182 |
| 80 | 0.218 | 2.375 | 1985 | 1985 | 1985 | 1843 | 1712 | |
| 160 | 0.344 | 2.375 | 3283 | 3283 | 3283 | 3047 | 2831 | |
| 3″ | 40 | 0.216 | 3.500 | 1301 | 1301 | 1301 | 1208 | 1122 |
| 80 | 0.300 | 3.500 | 1844 | 1844 | 1844 | 1712 | 1590 | |
| 160 | 0.438 | 3.500 | 2787 | 2787 | 2787 | 2587 | 2403 | |
| 4″ | 40 | 0.237 | 4.500 | 1102 | 1102 | 1102 | 1023 | 950 |
| 80 | 0.337 | 4.500 | 1596 | 1596 | 1596 | 1482 | 1377 | |
| 160 | 0.531 | 4.500 | 2611 | 2611 | 2611 | 2424 | 2552 | |
| 5″ | 40 | 0.258 | 5.563 | 965 | 965 | 965 | 896 | 832 |
| 80 | 0.375 | 5.563 | 1428 | 1428 | 1428 | 1325 | 1231 | |
| 160 | 0.625 | 5.563 | 2474 | 2474 | 2474 | 2296 | 2133 | |
| 6″ | 40 | 0.280 | 6.625 | 877 | 877 | 877 | 814 | 756 |
| 80 | 0.432 | 6.625 | 1379 | 1379 | 1379 | 1280 | 1189 | |
| 160 | 0.719 | 6.625 | 2382 | 2382 | 2382 | 2211 | 2054 | |
| 8″ | 40 | 0.322 | 8.625 | 771 | 771 | 771 | 716 | 665 |
| 80 | 0.500 | 8.625 | 1218 | 1218 | 1218 | 1131 | 1050 | |
| 160 | 0.906 | 8.625 | 2298 | 2298 | 2298 | 2133 | 1982 | |
| 10″ | 40 | 0.365 | 10.750 | 699 | 699 | 699 | 649 | 603 |
| 80 | 0.594 | 10.750 | 1159 | 1159 | 1159 | 1075 | 999 | |
| 160 | 1.125 | 10.750 | 2289 | 2289 | 2289 | 2124 | 1974 | |
SS 309S fittings are used in heat exchangers, industrial furnaces, boiler components, and chemical processing plants. They are suitable for high-temperature piping, gas processing, and thermal equipment where resistance to scaling is important. Industries such as petrochemical, power generation, and food processing rely on 309S for its strength and stability. The alloy also is employed in architectural and industrial applications that require oxidation resistance. SS 309S fittings provide long-lasting service in environments exposed to high-temperature gases, corrosive atmospheres, and moderate pressures.
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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