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Stainless Steel 347 Flanges have high resistance to corrosion, oxidation, and high temperature, thus they are suitable for many industrial uses including those in the food processing industry, chemical industry and pharmaceutical industry. Solitaire Overseas is one of the reputable manufacturers and suppliers of Stainless Steel 347 Flanges in India and supply high quality flange products as per standards set out by ASTM A182 F347. Grade 347 is a niobium stabilized austenitic stainless steel, excellent resistance to intergranular corrosion after welding and retaining the mechanical properties. They are strong, easy to weld and have high oxidation resistance at high temperatures, thus making them suitable for difficult industrial uses. Stainless Steel 347 Flanges can be classified into different types, sizes, pressure rating and specifications according to the different industries' requirements.
Get a Free Quote for Stainless Steel 347 Flanges →| Specification Parameter | Details / Available Options |
|---|---|
| Specifications | ASTM A182 / ASTM A240 & ASME SA182 / ASME SA240 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size | 1/2" (15 NB) to 48" (1200NB) |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500# | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Grade | Chromium (Cr) | Nickel (Ni) | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Columbium & Tantalum (Nb & Ta) | Iron (Fe) |
|---|---|---|---|---|---|---|---|---|---|
| SS 347 | 17.00 min. – 19.00 max. | 9.00 min. – 13.00 max. | 0.08 max. | 2.00 max. | 0.045 max. | 0.03 max. | 0.75 max. | 10×(C+N) min. – 1.00 max | Balance |
| 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 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 347 | 1.4550 | S34700 | SUS 347 | – | 08Ch18N12B | – | X6CrNiNb18-10 |
| Nominal Size | Bore Diam. (B) | Outside Diam. (OD) | Bolt Circle (BC) | Bolt Hole Diam. | Hub Length (L) | Thickness (T) | Lap Radius (R) | Hub Diam. (H) | No. of Bolt Holes | Approx. Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1″ | 1.38 | 4.25 | 3.13 | 0.625 | 0.688 | 0.563 | 0.13 | 1.938 | 4 | 2 |
| 1-1/4″ | 1.72 | 4.68 | 3.50 | 0.625 | 0.813 | 0.625 | 0.19 | 2.312 | 4 | 3 |
| 1-1/2″ | 1.97 | 5.00 | 3.88 | 0.625 | 0.875 | 0.688 | 0.25 | 2.563 | 4 | 3 |
| 2″ | 2.46 | 6.00 | 4.75 | 0.750 | 1.000 | 0.750 | 0.31 | 3.063 | 4 | 5 |
| 2-1/2″ | 2.97 | 7.00 | 5.50 | 0.750 | 1.125 | 0.875 | 0.31 | 3.563 | 4 | 7 |
| 3″ | 3.60 | 7.50 | 6.00 | 0.750 | 1.188 | 0.938 | 0.38 | 4.250 | 4 | 8 |
| 3-1/2″ | 4.10 | 8.50 | 7.00 | 0.750 | 1.250 | 0.938 | 0.38 | 4.812 | 8 | 11 |
| 4″ | 4.60 | 9.00 | 7.50 | 0.750 | 1.312 | 0.938 | 0.44 | 5.312 | 8 | 13 |
| 5″ | 5.69 | 10.00 | 8.50 | 0.875 | 1.438 | 0.938 | 0.44 | 6.438 | 8 | 15 |
| 6″ | 6.75 | 11.00 | 9.50 | 0.875 | 1.562 | 1.000 | 0.50 | 7.562 | 8 | 18 |
| 8″ | 8.75 | 13.50 | 11.75 | 0.875 | 1.750 | 1.125 | 0.50 | 9.688 | 8 | 30 |
| 10″ | 10.92 | 16.00 | 14.25 | 1.000 | 1.938 | 1.188 | 0.50 | 12.000 | 12 | 42 |
| 12″ | 12.92 | 19.00 | 17.00 | 1.000 | 2.188 | 1.250 | 0.50 | 14.375 | 12 | 64 |
| 14″ | 14.19 | 21.00 | 18.75 | 1.125 | 2.250 | 1.375 | 0.50 | 15.750 | 12 | 90 |
| 16″ | 16.19 | 23.50 | 21.25 | 1.125 | 2.500 | 1.438 | 0.50 | 18.000 | 16 | 98 |
| 18″ | 18.20 | 25.00 | 22.75 | 1.250 | 2.688 | 1.562 | 0.50 | 19.875 | 16 | 125 |
| 20″ | 20.25 | 27.50 | 25.00 | 1.250 | 2.875 | 1.688 | 0.50 | 22.000 | 20 | 160 |
| 24″ | 24.25 | 32.00 | 29.50 | 1.375 | 3.250 | 1.875 | 0.50 | 26.125 | 20 | 212 |
| 30″ | 30.25 | 38.75 | 36.00 | 1.375 | 3.500 | 2.125 | 0.50 | 32.750 | 28 | 305 |
| 36″ | 36.25 | 46.00 | 42.75 | 1.625 | 3.750 | 2.375 | 0.50 | 39.250 | 32 | 440 |
| Pipe Nom. Diam. | DN | O.D. Flange (O) | Thk. Min (C) | Diam. of Hub (X) | Diam. Raised Face (G) | Length Hub (Y) | Thread Length (T) | Bolt Circle (BC) | Bolt Hole Diam. (BH) | No. of Bolts (BN) | Diam. of Bolts (BD) | Weight (KG) | Weight (LB) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 15 | 89.00 | 11.20 | 30.20 | 35.10 | 15.70 | 15.70 | 60.50 | 15.80 | 4 | 1/2" | 0.4 | 0.9 |
| 3/4" | 20 | 98.50 | 12.70 | 38.10 | 42.90 | 15.70 | 15.70 | 69.90 | 15.80 | 4 | 1/2" | 0.7 | 1.5 |
| 1" | 25 | 108.00 | 14.20 | 49.30 | 50.80 | 17.50 | 17.50 | 79.30 | 15.80 | 4 | 1/2" | 0.8 | 1.8 |
| 1-1/4" | 32 | 117.50 | 15.70 | 58.70 | 63.50 | 20.60 | 20.60 | 88.90 | 15.80 | 4 | 1/2" | 1.2 | 2.6 |
| 1-1/2" | 40 | 127.00 | 17.50 | 65.00 | 73.20 | 22.40 | 22.40 | 98.60 | 15.80 | 4 | 1/2" | 1.5 | 3.3 |
| 2" | 50 | 152.50 | 19.10 | 77.70 | 91.90 | 25.40 | 25.40 | 120.70 | 19.10 | 4 | 5/8" | 2.3 | 5.1 |
| 2-1/2" | 65 | 178.00 | 22.40 | 90.40 | 104.60 | 28.40 | 28.40 | 139.70 | 19.10 | 4 | 5/8" | 3.7 | 8.1 |
| 3" | 80 | 190.50 | 23.90 | 108.00 | 127.00 | 30.20 | 30.20 | 152.40 | 19.10 | 4 | 5/8" | 4.1 | 9.0 |
| 3-1/2" | 90 | 216.00 | 23.90 | 122.20 | 139.70 | 31.80 | 31.80 | 177.80 | 19.10 | 8 | 5/8" | 5.1 | 11.2 |
| 4" | 100 | 228.50 | 23.90 | 134.90 | 157.20 | 33.30 | 33.30 | 190.50 | 19.10 | 8 | 5/8" | 5.9 | 13.0 |
| 5" | 125 | 254.00 | 23.90 | 163.60 | 185.70 | 36.60 | 36.60 | 215.90 | 22.40 | 8 | 3/4" | 7.0 | 15.4 |
| 6" | 150 | 279.50 | 25.40 | 192.00 | 215.90 | 39.60 | 39.60 | 241.30 | 22.40 | 8 | 3/4" | 8.4 | 18.5 |
| 8" | 200 | 343.00 | 28.40 | 246.10 | 269.70 | 44.50 | 44.50 | 298.50 | 22.40 | 8 | 3/4" | 13.0 | 28.6 |
| 10" | 250 | 406.50 | 30.20 | 304.80 | 323.90 | 49.30 | 49.30 | 362.00 | 25.40 | 12 | 7/8" | 18.0 | 39.5 |
| 12" | 300 | 482.50 | 31.80 | 365.30 | 381.00 | 55.60 | 55.60 | 431.80 | 25.40 | 12 | 7/8" | 29.0 | 64.0 |
| 14" | 350 | 533.50 | 35.10 | 400.10 | 412.80 | 57.20 | 57.20 | 476.30 | 28.50 | 12 | 1" | 39.0 | 86.0 |
| 16" | 400 | 597.00 | 36.60 | 457.20 | 469.90 | 63.50 | 63.50 | 539.80 | 28.50 | 16 | 1" | 47.0 | 103.0 |
| 18" | 450 | 635.00 | 39.60 | 505.00 | 533.40 | 68.30 | 68.30 | 577.90 | 31.80 | 16 | 1-1/8" | 57.0 | 126.0 |
| 20" | 500 | 698.50 | 42.90 | 558.80 | 584.20 | 73.20 | 73.20 | 635.00 | 31.80 | 20 | 1-1/8" | 76.0 | 167.0 |
| 24" | 600 | 813.00 | 47.80 | 663.40 | 692.20 | 82.60 | 82.60 | 749.30 | 35.10 | 20 | 1-1/4" | 97.0 | 214.0 |
| Temperature (°F) | 150# | 300# | 400# | 600# | 900# | 1500# | 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 |
Stainless Steel 347 Flanges are niobium-stabilized austenitic stainless steel flanges designed for high-temperature and corrosion-resistant applications. They offer excellent resistance to intergranular corrosion after welding.
The UNS number for SS 347 Flanges is S34700. This grade is widely used in high-temperature and corrosive service environments.
The Werkstoff number for Stainless Steel 347 Flanges is 1.4550. It is the European designation for this stabilized stainless steel grade.
ASTM A182 F347 covers forged or rolled Stainless Steel 347 flanges intended for high-temperature service. The specification defines the material's chemical and mechanical requirements.
SS 347 is equivalent to DIN/EN 1.4550 and JIS SUS347. These grades provide similar corrosion resistance and high-temperature performance.
Stainless Steel 347 is an austenitic stainless steel grade. It offers excellent toughness, weldability, and resistance to oxidation at elevated temperatures.