Adinox Overseas is a trusted name in the global piping industry, offering a comprehensive range of high-quality Stainless Steel 347 Flanges. Manufactured using superior-grade materials, our SS 347 flanges conform to international standards, including ASTM A182 F347 and UNS S34700, ensuring excellent performance in high-pressure and high-temperature applications. These flanges are specifically engineered for applications requiring superior resistance to intergranular corrosion and enhanced mechanical strength in elevated temperature environments.
UNS S34700, the universally recognized standard name for stainless steel grade 347, is a stabilized austenitic stainless steel alloy that includes columbium (niobium) as a stabilizing element. This addition provides increased resistance against carbide precipitation, making ASTM A182 F347 flanges ideal for high-heat applications such as heat exchangers, pressure vessels, and chemical processing plants. The flanges are capable of withstanding operating temperatures up to 870°C, providing reliable performance in harsh industrial environments.
At Adinox Overseas, our range of SS 347 flanges includes weld neck flanges, slip-on flanges, blind flanges, threaded flanges, socket weld flanges, lap joint flanges, and long weld neck flanges, available in sizes from ½” to 60” NB and pressure ratings from Class 150 to 2500. Our advanced infrastructure, expert team, and strict quality control process ensure that every flange meets global specifications such as ASME, ANSI, EN, DIN, and JIS standards. Each product is supplied with complete documentation, including Mill Test Certificates as per EN 10204 3.1/3.2.
Choose Adinox Overseas for all your SS 347 flange requirements and experience unmatched product quality, technical expertise, and comprehensive customer support. We are committed to supplying top-grade UNS S34700 flanges that ensure operational efficiency and durability under extreme conditions.
| Specification | ASTM A182 / ASME SA182 |
|---|---|
| Dimension Standard | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2" (15 NB) to 48" (1200 NB) |
| 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) |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641, 2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637, 2638, 2673 |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, PN 10, PN 16, PN 25, PN 40, PN 64, PN 100, PN 160, PN 250, BS 10, BS Table D, E, F, H |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 347 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | - | 8 – 11 | - |
| 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 % |
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