Yash Fittings, a Mumbai, India-based company, is a prominent manufacturer and supplier of high-quality stainless steel fittings, with expertise in Stainless Steel 347 and 347H Forged Fittings. These fittings are famous for their high resistance to intergranular corrosion, even at high temperatures, which makes them suitable for high-stress industrial applications. Made from austenitic stainless steel, SS 347/347H provides higher strength, increased durability, and excellent resistance to oxidation. Yash Fittings guarantees precise engineering and strict quality control, thereby becoming a reliable option in the international market.
| Specification | ASTM A182 / ASME SA182 |
| Dimension Standard | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 |
| Size | 1/8″ NB to 4″ NB |
| Type | Socketweld Fittings, Screwed-Threaded Fittings |
| Pressure-Temperature Class | Threaded End – 2000 /3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS. |
Stainless Steel 347 and 347H are austenitic stainless steel alloys that are characterized by their superior chemical, mechanical, and physical properties. They are stabilized chemically with columbium (niobium) to avoid carbide precipitation to provide immunity against intergranular corrosion. SS 347H, which contains higher carbon, provides excellent strength at high temperatures. The alloys have excellent tensile strength, yield strength, and hardness, which makes them perfect for challenging applications. Physically, they have very good ductility, thermal conductivity, and resistance to oxidation, rendering them suitable for application in high-temperature conditions.
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 20.00 | 10xC – 1.10 | 9.00 – 13.00 | 62.74 min |
| SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 8xC – 1.10 | 9.0 -13.0 | 63.72 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Yash Fittings is a leading supplier of Stainless Steel 310H Forged Fittings in Mumbai, India. We offer an extensive range of Stainless Steel 310H 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 | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
| SS 347H | 1.4961 | S34709 | SUS 347H | – | X6CrNiNb18-12 |
| Pressure-Temperature | |||||
| Temperature | Class | ||||
| 150 | 300 | ||||
| 1/4 – 1 inch. | 1 1/4 – 2 inch. | 2 1/2 – 3 inch. | |||
| (oF) | (oC) | ||||
| -20 to 150 | -29 to 66 | 300 | 2000 | 1500 | 1000 |
| 200 | 93 | 265 | 1785 | 1350 | 910 |
| 250 | 121 | 225 | 1575 | 1200 | 825 |
| 300 | 149 | 185 | 1360 | 1050 | 735 |
| 350 | 177 | 150 | 1150 | 900 | 650 |
| 400 | 204 | – | 935 | 750 | 560 |
| 450 | 232 | – | 725 | 600 | 475 |
| 500 | 260 | – | 510 | 450 | 385 |
| 550 | 288 | – | 300 | 300 | 300 |
Choose Stainless Steel 347/347H Forged Fittings from Yash Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Yes, custom sizes for Stainless Steel 347/347H Forged Fittings are available at Yash Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@yashfittings.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 347 and 347H Forged Fittings find extensive application in numerous industries for their fine high-temperature strength as well as intergranular corrosion resistance. They are used extensively in petrochemical, chemical processing, oil and gas, power generation, as well as pharmaceutical industries. These fittings are perfectly suited to be used in heat exchangers, boiler tubes, superheater tubes, and similar high-stress applications that encounter severe temperatures. Their greater strength and resistance to tough conditions make them a favored option for use where stable and long-term performance is called for.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
©2024 Yash Fittings. All Rights Reserved.
