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Jai Hind Metal is a trusted manufacturer and supplier of Stainless Steel 347/347H Flanges, providing quality piping components for a wide range of industrial requirements. We understand that flange requirements can vary from one project to another, including material grade, dimensions, pressure class, face type, and applicable manufacturing standards. For this reason, our flanges are produced according to the specifications and requirements provided by each customer. Every flange goes through careful inspection for dimensional accuracy, surface finish, workmanship, and overall quality before it is prepared for dispatch. Our quality team monitors production and carries out final checks to maintain consistency, while third-party inspection services can also be arranged when required. With proper inventory planning and organized storage, we are able to handle both routine orders and time-sensitive industrial requirements.
Along with manufacturing, we pay close attention to how each order is packed and delivered. Stainless Steel 347/347H Flanges are properly protected using suitable packing materials to minimize the possibility of scratches, surface damage, moisture exposure, or impact during transportation. Depending on the destination and project requirements, we can provide customized packing, labeling, and additional protection for safe handling. Our dispatch team coordinates with experienced logistics partners to arrange shipments efficiently and keep customers informed throughout the delivery process. By focusing on consistent product quality, thorough inspection, careful packaging, and responsive order coordination, Jai Hind Metal works to provide a smooth purchasing experience and dependable support to customers across different markets.
Precisely manufactured metal products meeting demanding industrial standards.
Consistent quality, reliable performance, and strict inspection at every stage.
Available in customized sizes, grades, thicknesses, and specifications.
Efficient processing, secure packaging, and dependable delivery worldwide.
Stainless Steel 347/347H Flanges are manufactured from high-quality austenitic stainless steel containing chromium, nickel, and columbium (niobium), offering excellent corrosion resistance, strength, and stability during high-temperature service. These flanges are suitable for demanding industrial conditions and can be manufactured in different types, sizes, pressure classes, and dimensions according to specific piping requirements. The addition of niobium stabilizes the material and helps minimize chromium carbide precipitation during prolonged exposure to elevated temperatures, making it well suited for welded components and heat-intensive applications. SS 347 provides good formability and weldability, while SS 347H, with its higher carbon content, is designed to provide improved strength at elevated temperatures. Their thermal stability, durability, and resistance to oxidation make Stainless Steel 347/347H Flanges suitable for various high-temperature piping and process applications.
In the annealed condition, Stainless Steel 347/347H Flanges provide a combination of corrosion resistance, high-temperature stability, and mechanical strength, making them suitable for demanding industrial service. They are commonly used in chemical processing equipment, petrochemical plants, heat exchangers, power generation facilities, furnace components, and high-temperature piping systems where resistance to thermal exposure is important. Both SS 347 and SS 347H are stabilized with niobium, which helps limit chromium carbide precipitation during prolonged exposure to elevated temperatures and makes the grades suitable for welded applications. SS 347H contains a higher carbon level than standard 347, offering improved strength for elevated-temperature service. With good weldability, durability, resistance to oxidation, and dependable performance under thermal cycling, Stainless Steel 347/347H Flanges are well suited for high-temperature piping and equipment connections.
Stainless Steel 321 / 321H Flanges are manufactured using iron, chromium, and nickel as the primary alloying elements, with titanium incorporated to improve structural stability at elevated temperatures. Chromium supports resistance to corrosion and oxidation, while nickel enhances toughness, strength, and overall durability
| A182 Gr F347 / 347H Flange Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| Stainless Steel 347 / 347H Flange Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| SS Grade F347 / 347H Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| ASTM A182 F347 / 347H Stainless Steel Flanges Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| ASME SA 182 F347 / 347H Flange | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| ASME SA182 347 / 347H Stainless Steel Flange UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| A182 F347 / 347H Flange EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Most common types of ASTM A182 F347 / 347H Stainless Steel Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| ASME SA182M SS 347 / 347H Flange Production technique | Forged, Heat treated and machined |
| A182 Grade F347 / 347H Flange Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS |
| ASME A182 SS 347 / 347H Flange Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| ASTM A182 SS 347 / 347H Flange Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| SS 347 / 347H Flange Origin | Indian / West Europe / Japan / USA / Korean |
| Manufacturer of Stainless Steel ASTM A182 F347 / 347H Flange | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. B.S: BS4504 , BS3293, BS1560, BS10 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| ASME SA182M Stainless Steel 347 / 347H Flange Uses & application | Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
| SS 347 / 347H EN 1092-1 Flange Export to | Ireland, Singapore, Indonesia, Ukraine, Saudi & Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| ASME/ANSI B 16.5 | Blind Flange, High Hub Blind Flange, Slip on Flange, Welding Neck Flange, Socket Weld Flange, Ring Type Joint Flange, Lap Joint Flange, Threaded Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B 16.47 | Blind Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B 16.36 | Slip on Flange, Threaded Flange, Welding Neck Flange, |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| BS 4504 SEC 3.1 | Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
| Products | Size | |
| ASTM A182 SS F347 / 347H Slip-On Flanges | ASTM A182 SS F347 / 347H Threaded Flanges | Sizes 1/8″ – 36″ Raised Face or Flat Face |
| ASTM A182 SS F347 / 347H Weld Neck Flanges | ASTM A182 SS F347 / 347H Socket Weld Flanges | |
| ASTM A182 SS F347 / 347H Blind Flanges | ASTM A182 SS F347 / 347H Reducing Flanges | |
| ASTM A182 SS F347 / 347H Lap Joint Flanges | ASTM A182 SS F347 / 347H Plate Flanges | |
| ASTM A182 SS F347 / 347H Orifice Flanges | ASTM A182 SS F347 / 347H Forged Flanges | |
| ASTM A182 SS F347 / 347H Ring Type Joint Flanges | ASTM A182 SS F347 / 347H Square Flanges | |
| 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 |
| 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 % |
| American Steel Flanges Standard | |
| Standard Code | Standard Name |
| ANSI ASME SA-182 | Forged Flanges |
| ANSI ASME B16.5 | Slip on flange, Welding neck flange, Blind flange, Threaded flange, Lap joint flange, RTJ flange |
| ASME – B 16.47 | Welding neck flange, Blind flange |
| ASME – B 16.36 | Welding neck flange Slip on flange |
| German Steel Flanges Standard | |
| DIN 2527 | Steel Blind Flanges, BLRF |
| DIN 2573 / 2576 | Flat Flange for Welding (Slip On) |
| DIN 2673 | Loose Flanges and Rings for Welding (Slip On Flanges and Plain Collars) |
| DIN 2641 / 2642 | Lapped / Loose (Lap Joint) Flanges Plain Collars |
| DIN 28115 | Long Neck Welding Flanges |
| DIN PN10, PN16 | SS 347 PN10 Flanges, 347H SS DIN PN 10 Flanges, 347 SS PN16 Flange |
| DIN PN20, PN25 | SS 347 PN20 Flanges, 347H SS DIN PN 25 Flanges |
| DIN PN40, PN50 | SS 347 PN40 Flanges, 347H SS DIN PN 50 Flanges |
| Japanese Steel Flanges Standard | |
| JIS B2220 | Slipon plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lapjoint (LJ), Threaded flange (TR)/ Itegral flange (IT) Blank flange (BL) |
| JIS B2291 | Slipon plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lapjoint (LJ), Threaded flange (TR)/ Itegral flange (IT) Blank flange (BL) |
| JIS 5K, 10K | SS 347 5K SORF Flanges, 347H SS 10K SOFF Flanges |
| JIS 16K, 20K | SS 347 16K Blind Flanges, 347H SS 20K BLRF Flanges |
| JIS 30K, 40K | SS 347 30K Slip on Flanges, 347H SS 40K Blind Flanges |
| Italian Flanges Standard | |
| UNI FLANGES | Plan flanges (2276, 2277, 2278, 6083, 6084) Welding neck (2280, 2281, 2282, 2283, 2284, 2285, 2286) Lapped flanges (6088, 6089, 6090, 2999, 2300) Blind flanges (6091, 6092, 6093, 6094, 6095, 6096, 6097) threaded flanges (2253, 2254) |
| British Standard Pipe Flanges Standard | |
| BS 10 Table D | SS 347 BS 10 Table D Flanges, 347H Table D Pipe Flange |
| BS 10 Table E | SS 347 BS 10 Table E Flanges, 347H Table E Pipe Flange |
| BS 10 Table F | SS 347 BS 10 Table E Flanges, 347H Stainless Steel Table E Flanges |
| BS 10 Table H | SS 347 BS 10 Table E Flanges, Stainless Steel 347H Table E Pipe Flanges |
| Flange Schedule/Class | Pipe Size – Pipe Flanges | Flange Connection Type | Flange Material | Max. Pressure |
|---|---|---|---|---|
| ASME B16.5 Class 150 | 1/2″ | FNPT | Stainless Steel 347 / 347H Flanges | 150 psi |
| ASME B16.5 Class 150 | 1/2″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 1/2″ | Welded | Stainless Steel 347 / 347H Flanges | 150 psi |
| ASME B16.5 Class 150 | 3/4″ | FNPT | Stainless Steel 347 / 347H Flanges | 150 psi |
| ASME B16.5 Class 150 | 3/4″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 1-1/4″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 1-1/2″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 2″ | FNPT | Stainless Steel 347 / 347H Flanges | 150 psi |
| ASME B16.5 Class 150 | 2″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 2-1/2″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 3″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 150 | 4″ | FNPT | Stainless Steel 347 / 347H Flanges | 150 psi |
| ASME B16.5 Class 150 | 4″ | Socket Weld | Stainless Steel 347 / 347H Flanges | 275 psi |
| ASME B16.5 Class 300 | 1/2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1/2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1-1/4″ | FNPT | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1-1/4″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1-1/2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 1-1/2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 2-1/2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 2-1/2″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 3″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 3″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 4″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| ASME B16.5 Class 300 | 4″ | Slip On | Stainless Steel 347 / 347H Flanges | 720 psi |
| 347H Stainless Steel Blind Flange | SS 347 Flat Flange Supplier in India |
| Stainless Steel UNS S34700 Flanges Manufacturer | Stainless Steel 347 Slip on Flanges |
| Stainless Steel 347 Weld Neck Flanges | SS 347H Socket weld Flanges Dealer in India |
| SS 347H Long Weld Neck Flanges Stockist | ASTM A182 F347 SS Threaded Flanges |
| Stainless Steel 347 Flanges Supplier in India | Stainless Steel EN 1092-1 Plate Flanges |
| Stainless Steel 347H Forged Flanges Wholesaler | SS UNS S34709 Lap Joint Flanges Supplier |
| Stainless Steel 347 BLRF Flange Manufacturer | Stainless Steel 347 Raised Face Flanges |
| F347 Stainless Steel Nipoflange | Stainless Steel SUS 347 Reducing Flanges |
| ANSI B16.5 Stainless Steel 347 Pipe Flange | SS 347 Ring Type Joint Flanges |
| 1.4550 Stainless Steel Orifice Flange | Stainless Steel 347 Spectacle Blind Flanges Stockists |
| Stainless Steel 347 PN 10 Flange | 347H PN 16 Stainless Steel Flanges Stockists |
| Stainless Steel 347H DIN Flanges | INOX 1.4961 SS SORF Flanges Exporter |
| ASME B16.5 Stainless Steel 347H Flanges | ASTM A182 347 Tongue & Groove Flanges |
| SS 347H Male & Female Flanges | Stainless Steel 347 RTJF Flanges |
| ASTM A182 SS 347H Screwed Flanges | ASME SA182 SS347 Expander Flanges |
| 347H SS Spades Ring Spacers Flanges | ASME SA182 Stainless Steel 347 Flat Face Flange |
| 347H SS 5K SOFF Flanges | Stainless Steel 347 10K Flanges |
| INOX 1.4550 Puddle Flanges Exporter | Stainless Steel 347 Socket Welding Flange |
| Grade 347 Stainless Steel Weldo Flanges | 347H Stainless Steel Nipo Flanges |
| SUS 347 Long Weld Neck Flanges | ASTM A182 F347H Flanges Facing Type & Finish |
| 347 SS BS Standard Table E Flange | SS 347 British Standard Table D Pipe Flanges |
| F347H Long Welding Neck Flange | Grade 347 Stainless Steel Raised Face Flange |
| ASME SA182 Stainless Steel 347 Spectacle Blind Flanges | 347H Stainless Steel BLRF Flanges Supplier |
| Stainless Steel 347 High Hub Blinds Flanges | F347H Flanges Facing Type & Finish |
| X6CrNiNb18-10 SS Forging Facing Flanges Dealer | Stainless Steel 347 Weld Neck Flanges A / B Stockist |
| Stainless Steel 347 Plate Flange Supplier in Mumbai | SS 347H Loose Flanges Manufacturer in India |
| Stainless Steel 1.4961 Flanges Dimensions | Stainless Steel 347H Spades Ring Spacers Flanges |
| Wrought Austenitic Stainless Steel 347 Flanges | ASTM A182 F347 Expander Flanges at Best Price |
| SS X6CrNiNb18-12 Reducing Flanges Supplier | Suppliers of 347H Stainless Steel Welding Neck Flange |
Stainless Steel 347 / 347H Flanges are available in pipe or plate construction and are manufactured to comply with recognized industry standards. These flanges are generally supplied according to ASTM A182 material specifications and ASME B16.5 dimensional requirements, supporting consistent material quality, accurate dimensions, and reliable compatibility with various industrial piping systems.






We offer Stainless Steel 347 / 347H Flanges in accordance with international standards such as DIN, ISO, JIS, and ANSI, making them suitable for the varied requirements of industrial piping systems. Our flanges are available in multiple sizes, dimensions, pressure ratings, and configurations to accommodate different installation and service needs. At Jai Hind Metal, we focus on consistent manufacturing quality, dimensional accuracy, and dependable performance while supplying SS 347 / 347H Flanges as per applicable standards and customer specifications. For product details, specifications, or customized requirements, email us at info@jaihindmetal.com.
Stainless Steel 347 / 347H Flanges are widely used to provide reliable connections between pipes, valves, pumps, and other equipment in industrial piping systems. Their good corrosion resistance, oxidation resistance, and ability to retain strength at elevated temperatures make them suitable for demanding service conditions. These flanges are commonly used in chemical processing, petrochemical plants, oil and gas, power generation, heat exchangers, steam systems, aerospace equipment, thermal processing units, and high-temperature piping applications. Grade 347H is particularly suited to applications requiring higher strength during prolonged exposure to elevated temperatures.
Looking for high-quality industrial products manufactured to your specific requirements? Contact our team for product details, customized solutions, pricing, and timely delivery.
Email: info@jaihindmetal.com
Our high-performance metal products are engineered to meet the demanding requirements of industries operating in challenging environments, including extreme temperatures, pressure and corrosive conditions.
Our corrosion-resistant metal products are widely used in marine environments where exposure to seawater, salt spray and harsh atmospheric conditions demands exceptional durability and reliability.
Our nickel alloys and high-performance metal products are used throughout the oil and gas industry for demanding applications involving high pressure, corrosive fluids, sour gas and extreme operating conditions.
Our corrosion-resistant alloys provide dependable performance in chemical processing equipment exposed to aggressive chemicals, high temperatures and challenging process conditions.
High-strength nickel alloys and specialty metals are selected for aerospace applications where lightweight performance, strength and resistance to extreme temperatures are essential.
Our specialty metal products support power generation equipment operating under high temperatures, pressure and corrosive conditions, delivering reliable long-term performance.
Corrosion-resistant metals are ideal for salt production environments where continuous exposure to concentrated salt and moisture can severely affect conventional materials.
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