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Solitaire Overseas is one of the major manufacturers and Suppliers of Stainless Steel 347H Flanges India, providing high-quality flanges which are designed to have high strength, long service life and durability. These flanges are made from ASTM A182 F347H stainless steel and are niobium (columbium)-stabilized to help avoid carbide precipitation and to enhance intergranular corrosion resistance following welding. They also offer excellent oxidation resistance and high mechanical strength at elevated temperatures. Available in different types, sizes, with pressure classes. Stainless Steel 347H Flanges can be utilized in different pipe and equipment fittings. Their ability to resist corrosion, being weldable and stable at high temperatures makes them suitable material for use in difficult conditions. Solitaire Overseas Flange is manufactured with high precision and strict quality control to ensure accuracy and reliability of its functioning.
Get a Free Quote for Stainless Steel 347H Flanges →| Category | Specification Details |
|---|---|
| Material Standard | ASTM A182 / ASME SA182 (Forged Alloy & Stainless Steel) |
| Dimensional Standards | ANSI/ASME B16.5, B16.47 (Series A & B), B16.48, BS 4504, BS 10, EN-1092, DIN |
| Major Standards | ANSI, ASME, BS, DIN, EN Flanges |
| Size Range | 1/2" (15 NB) to 48" (1200 NB) |
| ANSI Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| European Pressure (PN) | PN6, PN10, PN16, PN25, PN40, PN64, etc. |
| Flange Face Types | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN Standards | 2527, 2566, 2573, 2576, 2641-42, 2655-56, 2627-29, 2631-38, 2673 |
| JIS Standards | JIS B2220 (5K, 10K, 16K, 20K) |
| BS Standards | BS 4504 (PN 6 to PN 250), BS 10 (Tables D, E, F, H) |
| Grade | C | Mn | Si | P | S | Cr | Cb (Nb) | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 347H | 0.04–0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00–19.00 | 8×C – 1.10 max | 9.00–13.00 | 63.72 min |
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1454°C (2650°F) |
| Tensile Strength (Min) | 75,000 psi (515 MPa) |
| Yield Strength (0.2% Offset Min) | 30,000 psi (205 MPa) |
| Elongation (Min) | 35% |
| Standard Grade | Werkstoff Nr. | UNS | JIS | EN | UNI |
|---|---|---|---|---|---|
| SS 347H | 1.4961 | S34709 | SUS 347H | X7CrNiNb18-10 | — |
| Temp (°F) | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
|---|---|---|---|---|---|---|---|
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 650 | 125 | 430 | 575 | 860 | 1290 | 2150 | 3580 |
| 700 | 110 | 425 | 565 | 850 | 1275 | 2125 | 3540 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 800 | 80 | 405 | 540 | 805 | 1210 | 2015 | 3360 |
| 850 | 65 | 395 | 530 | 790 | 1190 | 1980 | 3300 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 950 | 35 | 380 | 510 | 765 | 1145 | 1910 | 3180 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
| 1050 | 20 | 310 | 410 | 615 | 925 | 1545 | 2570 |
| 1100 | 20 | 255 | 340 | 515 | 770 | 1285 | 2145 |
| 1150 | 20 | 200 | 265 | 400 | 595 | 995 | 1655 |
| 1200 | 20 | 155 | 205 | 310 | 465 | 770 | 1285 |
| 1250 | 20 | 115 | 150 | 225 | 340 | 565 | 945 |
| 1300 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| 1350 | 20 | 60 | 80 | 125 | 185 | 310 | 515 |
| 1400 | 20 | 50 | 65 | 95 | 145 | 240 | 400 |
| 1450 | 15 | 35 | 45 | 70 | 105 | 170 | 285 |
| 1500 | 10 | 25 | 35 | 55 | 80 | 135 | 230 |
| NPS (Inch) | Flange Diameter (Inch) | Number of Bolts |
|---|---|---|
| 1/4" | 3-3/8 | 4 |
| 1/2" | 3-1/2 | 4 |
| 3/4" | 3-7/8 | 4 |
| 1" | 4-1/4 | 4 |
| 1-1/4" | 4-5/8 | 4 |
| 1-1/2" | 5 | 4 |
| 2" | 6 | 4 |
| 2-1/2" | 7 | 4 |
| 3" | 7-1/2 | 4 |
| 3-1/2" | 8-1/2 | 8 |
| 4" | 9 | 8 |
| 5" | 10 | 8 |
| 6" | 11 | 8 |
| 8" | 13-1/2 | 8 |
| 10" | 16 | 12 |
| 12" | 19 | 12 |
| 14" | 21 | 12 |
| 16" | 23-1/2 | 16 |
| 18" | 25 | 16 |
| 20" | 27-1/2 | 20 |
| 24" | 32 | 20 |
| 26" | 41 | 16 |
Stainless Steel 347H Flanges are high-carbon, niobium-stabilized stainless steel flanges designed for high-temperature and corrosion-resistant applications.
The UNS number for SS 347H Flanges is S34709.
The Werkstoff number for Stainless Steel 347H Flanges is 1.4961.
The “H” indicates a higher carbon content, which improves strength and creep resistance at elevated temperatures.
SS 347H has a higher carbon content than SS 347, providing better high-temperature strength and creep resistance.
A dual-certified SS 347/347H Flange meets the chemical and mechanical requirements of both SS 347 and SS 347H grades.