Ferdi Fittings, located in Istanbul, Turkey, stands out as a top manufacturer and supplier of high-quality stainless steel forged fittings, particularly known for their impressive Stainless Steel 309H range. With a reputation built on precision engineering and a commitment to international standards, Ferdi Fittings caters to a variety of industrial sectors, providing components that are both durable and reliable. The company skillfully blends cutting-edge manufacturing technology with strict quality control measures to ensure that every fitting can withstand the challenges of high-temperature and corrosive environments. With a strong emphasis on customer satisfaction, Ferdi Fittings has established itself as a trusted source for superior stainless steel 309H forged fittings, ensuring performance, longevity, and safety in critical applications.
| Grade | Stainless Steel 309H |
| Standard | ASTM A182 & ASME SA182 |
| Dimensions | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Size | 1/8” NB to 4” NB (Socketweld & Screwed-Threaded) |
| Class | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Form | Socket Weld Elbow, Socket Weld Tee, Socket Weld Cross, Socket Weld Cap, Socket Weld Coupling, Socket Weld Union , Socket Weld Plug, Socket Weld Lateral Tee. |
| Type | Socket Weld Fittings |
The Stainless Steel 309H forged fittings are primarily made from iron, enriched with high levels of chromium (23–25%) and nickel (12–15%), along with a touch of carbon (0.04–0.10%) to boost their strength at high temperatures. These fittings are known for their remarkable resistance to oxidation and scaling, even when exposed to elevated temperatures, and they maintain their structural integrity during thermal cycling. On the mechanical side, they boast high tensile strength, good ductility, and toughness, making them perfect for challenging industrial conditions. Their hardness and ability to resist deformation under stress ensure dependable performance in both high-pressure and high-temperature piping systems, offering long-lasting durability and stability.
| ELEMENT | SS 309H |
| NI | 12.0 – 15.0 |
| C | 0.04 – 0.10 |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Ferdi Fittings is a leading supplier of Stainless Steel 309H Forged Fittings in Istanbul, Turkey. We offer an extensive range of Stainless Steel 309H Forged Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WERKSTOFF NR. |
|---|---|---|
| SS 309H | S30909 | 1.4833 |
Choose Stainless Steel 309H Forged Fittings from Ferdi Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Stainless steel 309H forged fittings offer many benefits, including exceptional resistance to high temperature oxidation and corrosion, making them ideal for high temperature applications Their high nickel-chromium content ensures excellent strength, durability , and resists carburization and scaling. These materials exhibit excellent weldability and formability, making them easy to install. They provide long-term reliability in harsh environments, such as power plants and chemical plants. In addition, they offer high mechanical strength, with high strength in creep strength and resistance to thermal expansion, making them suitable for extreme conditions.
Yes, custom sizes for Stainless Steel 309H Forged Fittings are available at Ferdi Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@ferdifittings.com
| ASME b16.9 Fittings Normal Pipe Size | ANSI b16 9 Pipe Fitting O D Y | Wall Thickness T (Pipe Elbow Sch.) | LR 45 Deg Elbows Centre to Face B | SR 45 Deg Elbows Weight | LR 90 Deg Elbows Centre to Face A | LR 90 Deg Elbows Weight In Below | SR 90 Deg Elbows Centre to Face A | SR 90 Deg Elbows Weight In Below | ||
|---|---|---|---|---|---|---|---|---|---|---|
| millimeter | inch. | millimeter | millimeter | Schedule | millimeter | kilogram | millimeter | kilogram | millimeter | kilogram |
| 15 | 1/2” | 21.3 | 2.78 | STD | 15.9 | 0.04 | 38.1 | 0.08 | – | – |
| 3.73 | X.S | 15.9 | 0.05 | 38.1 | 0.10 | – | – | |||
| 20 | 3/4” | 26.7 | 2.87 | STD | 11.1 | 0.04 | 28.6 | 0.08 | – | – |
| 3.91 | X.S | 11.1 | 0.05 | 28.6 | 0.11 | – | – | |||
| 25 | 1” | 33.4 | 3.38 | STD | 22.2 | 0.09 | 38.1 | 0.15 | 25.4 | 0.11 |
| 4.55 | X.S | 22.2 | 0.11 | 38.1 | 0.19 | 25.4 | 0.14 | |||
| 32 | 11/4” | 42.2 | 3.56 | STD | 25.4 | 0.14 | 47.6 | 0.28 | 31.75 | 0.18 |
| 4.85 | X.S | 25.4 | 0.2 | 47.6 | 0.39 | 31.75 | 0.24 | |||
| 40 | 11/2” | 48.3 | 3.68 | STD | 28.6 | 0.2 | 57.1 | 0.4 | 38.1 | 0.26 |
| 5.08 | X.S | 28.6 | 0.25 | 57.1 | 0.5 | 38.1 | 0.35 | |||
| 50 | 2” | 60.3 | 3.91 | STD | 34.9 | 0.36 | 76.2 | 0.72 | 50.8 | 0.5 |
| 5.54 | X.S | 34.9 | 0.5 | 76.2 | 1.0 | 50.8 | 0.68 | |||
| 65 | 21/2” | 73.0 | 5.16 | STD | 44.4 | 0.73 | 95.2 | 1.46 | 63.5 | 0.95 |
| 7.01 | X.S | 44.4 | 0.91 | 95.2 | 1.82 | 63.5 | 1.27 | |||
| 80 | 3” | 88.9 | 5.49 | STD | 50.8 | 1.1 | 114.3 | 2.18 | 76.2 | 1.45 |
| 7.62 | X.S | 50.8 | 1.45 | 114.3 | 2.86 | 76.2 | 1.95 | |||
| 100 | 4” | 114.3 | 6.02 | STD | 63.5 | 2.1 | 152.4 | 4.2 | 101.6 | 2.8 |
| 8.56 | X.S | 63.5 | 2.9 | 152.4 | 5.7 | 101.6 | 3.9 | |||
| 125 | 5” | 141.3 | 6.65 | STD | 79.4 | 3.4 | 190.0 | 6.8 | 127.0 | 4.8 |
| 9.5 | X.S | 79.4 | 5.0 | 190.0 | 10.0 | 127.0 | 6.5 | |||
| 150 | 6” | 168.3 | 7.11 | STD | 95.2 | 5.1 | 229.0 | 10.1 | 152.4 | 6.8 |
| 10.97 | X.S | 95.2 | 7.7 | 229.0 | 15.3 | 152.4 | 10.2 | |||
| 200 | 8” | 219.1 | 8.18 | STD | 127.0 | 10.2 | 305.0 | 20.4 | 203.0 | 13.6 |
| 12.7 | X.S | 127.0 | 15.5 | 305.0 | 30.9 | 203.0 | 20.9 | |||
| 250 | 10” | 273.9 | 9.27 | STD | 159.0 | 18.1 | 381.0 | 36.1 | 254.0 | 24.1 |
| 12.7 | X.S | 159.0 | 24.4 | 381.0 | 48.8 | 254.0 | 32.5 | |||
| 300 | 12” | 323.9 | 9.52 | STD | 190.0 | 26.6 | 457.0 | 53.1 | 305.0 | 35.4 |
| 12.7 | X.S | 190.0 | 35.0 | 457.0 | 70.0 | 305.0 | 46.7 | |||
| 350 | 14” | 355.6 | 9.52 | STD | 222.0 | 34.1 | 533.0 | 68.1 | 356.0 | 45.4 |
| 12.7 | X.S | 222.0 | 45.0 | 533.0 | 90.0 | 356.0 | 60.0 | |||
| 400 | 16” | 406.4 | 9.52 | STD | 254.0 | 45.0 | 610.0 | 89.3 | 406.0 | 59.5 |
| 12.7 | X.S | 254.0 | 59.0 | 610.0 | 118.0 | 406.0 | 78.7 | |||
| 450 | 18” | 457.0 | 9.52 | STD | 286.0 | 56.5 | 686.0 | 113.0 | 457.0 | 75.6 |
| 12.7 | X.S | 286.0 | 75.0 | 686.0 | 150.0 | 457.0 | 100.0 | |||
| 500 | 20” | 508.0 | 9.52 | STD | 318.0 | 85.0 | 762.0 | 140.0 | 508.0 | 93.5 |
| 12.7 | X.S | 318.0 | 112.5 | 762.0 | 186.0 | 508.0 | 124.0 | |||
| 600 | 24” | 610.00 | 9.52 | STD | 381.0 | 101.5 | 914.0 | 203.0 | 610.0 | 135.0 |
| 12.7 | X.S | 381.0 | 134.5 | 914.0 | 269.0 | 610.0 | 179.0 | |||
| NPS (inch) | Pipe Schedule. | OD (inch) | Wall Thick. (in) | Temperature | ||||
|---|---|---|---|---|---|---|---|---|
| Duplex Steel 100 Fitting | Duplex Steel 200 Fitting | Duplex Steel 300 Fitting | Duplex Steel 400 Fitting | Duplex Steel 500 Fitting | ||||
| Allowable Stress | ||||||||
| 16700 | 16700 | 16700 | 15500 | 14400 | ||||
| 1″ | 40 | 1.315 | 0.133 | 2205 | 2205 | 2205 | 2047 | 1902 |
| 80 | 1.315 | 0.179 | 3061 | 3061 | 3061 | 2841 | 2640 | |
| 160 | 1.315 | 0.250 | 4493 | 4493 | 4493 | 4170 | 3874 | |
| 1 1/2″ | 40 | 1.900 | 0.145 | 1629 | 1629 | 1629 | 1512 | 1404 |
| 80 | 1.900 | 0.200 | 2303 | 2303 | 2303 | 2138 | 1986 | |
| 160 | 1.900 | 0.281 | 3362 | 3362 | 3362 | 3120 | 2899 | |
| 2″ | 40 | 2.375 | 0.154 | 1371 | 1371 | 1371 | 1272 | 1182 |
| 80 | 2.375 | 0.218 | 1985 | 1985 | 1985 | 1843 | 1712 | |
| 160 | 2.375 | 0.344 | 3283 | 3283 | 3283 | 3047 | 2831 | |
| 3″ | 40 | 3.500 | 0.216 | 1301 | 1301 | 1301 | 1208 | 1122 |
| 80 | 3.500 | 0.300 | 1844 | 1844 | 1844 | 1712 | 1590 | |
| 160 | 3.500 | 0.438 | 2787 | 2787 | 2787 | 2587 | 2403 | |
| 4″ | 40 | 4.500 | 0.237 | 1102 | 1102 | 1102 | 1023 | 950 |
| 80 | 4.500 | 0.337 | 1596 | 1596 | 1596 | 1482 | 1377 | |
| 160 | 4.500 | 0.531 | 2611 | 2611 | 2611 | 2424 | 2552 | |
| 5″ | 40 | 5.563 | 0.258 | 965 | 965 | 965 | 896 | 832 |
| 80 | 5.563 | 0.375 | 1428 | 1428 | 1428 | 1325 | 1231 | |
| 160 | 5.563 | 0.625 | 2474 | 2474 | 2474 | 2296 | 2133 | |
| 6″ | 40 | 6.625 | 0.280 | 877 | 877 | 877 | 814 | 756 |
| 80 | 6.625 | 0.432 | 1379 | 1379 | 1379 | 1280 | 1189 | |
| 160 | 6.625 | 0.719 | 2382 | 2382 | 2382 | 2211 | 2054 | |
| 8″ | 40 | 8.625 | 0.322 | 771 | 771 | 771 | 716 | 665 |
| 80 | 8.625 | 0.500 | 1218 | 1218 | 1218 | 1131 | 1050 | |
| 160 | 8.625 | 0.906 | 2298 | 2298 | 2298 | 2133 | 1982 | |
| 10″ | 40 | 10.750 | 0.365 | 699 | 699 | 699 | 649 | 603 |
| 80 | 10.750 | 0.594 | 1159 | 1159 | 1159 | 1075 | 999 | |
| 160 | 10.750 | 1.125 | 2289 | 2289 | 2289 | 2124 | 1974 | |
Stainless Steel 309H forged fittings find their place in industries that demand high-temperature resistance and corrosion protection. They are particularly well-suited for furnace components, heat exchangers, boiler systems, chemical processing plants, and power generation units. These fittings also thrive in petrochemical plants, oil refineries, and other settings where exposure to extreme heat, oxidation, and corrosive substances is common. Moreover, 309H forged fittings are essential in piping networks that transport aggressive chemicals or steam, guaranteeing leak-free connections and operational safety.
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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