Grant Fittings, located in Manila, Philippines, stands out as a top manufacturer and supplier of premium industrial components, particularly their Stainless Steel 309S Pipe Fittings. With a reputation for precision engineering and rigorous quality control, Grant Fittings delivers durable and dependable solutions for industries that need high-temperature, corrosion-resistant, and high-strength piping components. Their Stainless Steel 309S Pipe Fittings are expertly crafted to endure extreme temperatures, high pressures, and harsh chemical environments. By sticking to international standards and prioritizing quality and customer satisfaction, Grant Fittings guarantees that every product performs exceptionally well, making them a go-to choice for engineers, fabricators, and industrial projects both locally and around the world.
| 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 |
Stainless Steel 309S is a high-alloy austenitic stainless steel enriched with chromium and nickel, which gives it remarkable oxidation and corrosion resistance at elevated temperatures. The 309S Pipe Fittings boast high tensile strength, good ductility, and excellent creep resistance, making them perfect for high-temperature applications. Their low carbon content enhances weldability while preserving mechanical strength. These fittings maintain their structural integrity during thermal cycling and resist scaling and oxidation in both oxidizing and mildly reducing environments, making them ideal for demanding piping systems in tough industrial settings.
| 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 | – |
Grant Fittings one of the largest suppliers of Stainless Steel 309S Pipe Fittings in Manila, Philippines. 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 Philippines.
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 Grant 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@grantfittings.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 | |
Stainless Steel 309S Pipe Fittings find extensive use in power generation, petrochemical industries, chemical processing, furnace systems, and heat exchangers. They are designed for pipelines and process systems that face high temperatures and pressures, where mechanical strength, thermal stability, and corrosion resistance are essential. Their long service life, durability, and reliable performance ensure safe and efficient fluid transport. These fittings not only boost operational efficiency but also enhance safety and performance, making them crucial for high-temperature and high-pressure piping applications.
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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