Home > Stainless Steel Flanges >Stainless Steel 347H Flanges
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Class/Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| 347H | 0.04 – 0.10 | 2.0 | 1.0 | 0.045 | 0.030 | 17.00 – 19.00 | 8xC – 1.10 | 9.00 – 13.00 | 63.72 min |
Grade
| Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347H | 515 | 205 | 35 | 92 | 201 |
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We supply these Stainless Steel 347H Flanges conforming to DIN, ISO, JIS or ANSI Standard.
High-temperature resistance: Stainless steel 347H is engineered for use in high-temperature settings. It delivers outstanding resistance to elevated temperatures and thermal stability, which makes it well-suited for environments where extreme heat is a concern.
Durability and longevity: Owing to its rugged build and resistance to a range of corrosive factors, the stainless steel 347H flange delivers remarkable durability. It can endure severe operating conditions without sacrificing performance, cutting down on maintenance needs and long-term replacement expenses.
Stability under welded conditions: Stainless steel 347H is stabilized using niobium, which delivers intergranular corrosion resistance following exposure to temperatures within the sensitivity range during welding or other heating operations. This stabilization improves weldability and safeguards the integrity of the flange in its welded condition.
Creep Resistance: Stainless steel 347H shows superior creep resistance at elevated temperatures compared with standard austenitic stainless steel. This characteristic is especially fitting for applications that involve sustained high temperatures, such as the petrochemical and refining industries.
Corrosion Resistance: Among the most significant benefits of stainless steel, including 347H, is its corrosion resistance. These flanges offer strong protection against various chemicals, acids and weather, guaranteeing durability and reliability in demanding environments.
Stainless Steel 347H Flanges offer outstanding mechanical properties and withstand wear corrosion, and elevated temperatures, making them common across numerous industries. These flanges see extensive use in the oil and gas, petrochemical, power generation, and aerospace sectors. They serve a vital role in connecting equipment, valves, and piping systems. Thanks to their remarkable strength, toughness, and wear resistance, they are ideally suited for applications subjected to harsh operating conditions, including high temperatures, high pressures, and corrosive environments.
Petrochemical Industry: Stainless steel 347H flanges are commonly employed throughout the petrochemical sector for piping systems, reactors, heat exchangers, and other equipment functioning under high temperatures and in hot conditions.
Power generation: Power plants, both conventional and nuclear, rely on stainless steel 347H flanges in steam turbines, boilers, heat exchangers, and other vital components. The strong resistance and creep properties of these flanges are crucial for guaranteeing dependable and efficient power generation systems.
Chemical applications: In chemical plants, stainless steel 347H flanges are utilized in pipes, vessels, and equipment that handle volatile chemicals, solvents, and acids. Their resistance to corrosion and stability at high temperatures make them well suited for preserving system integrity and safeguarding safety.
Maintenance Applications: Stainless steel 347H flanges find industrial use in critical applications like distillation columns, furnaces, and catalytic systems. These flanges endure high temperatures and corrosive environments throughout crude oil processing and the handling of various petroleum products.
Understand operational requirements: Determine the operating conditions, such as temperature, pressure, water/air concerns, corrosion potential, and other environmental factors. This knowledge will help you select flanges with suitable materials, pressure references, and corrosion resistance.
Flange Dimensions and Standards: Define the flange dimensions, such as thickness, face type (e.g., raised face, flat face, ring type joint), and flange class or pressure rating (e.g., ANSI/ASME B16.5, ANSI ). /ASME B16) and 47 Series A or B). Confirm compatibility with existing pipeline components and comply with industry standards.
Pressure and Temperature Ratings: Take into account your application’s pressure and temperature demands. Choose flanges rated to withstand maximum operating pressure and temperature conditions to guarantee safe and dependable operation.
Accessories: Verify that the stainless steel 347H works with the water or air piping. The flange material must also satisfy the requirements for chemical resistance, thermal stability, and corrosion resistance in the intended environment.
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