Harshita Stainless, located in Delhi, India, has made a name for itself as a top-notch manufacturer and supplier of premium Stainless Steel 347 Flanges. These flanges are celebrated for their impressive strength, outstanding resistance to corrosion, and durability even in the harshest conditions. With a strong focus on quality and precision engineering, Harshita Stainless ensures that their flanges meet international standards, making them essential for various critical applications across different industries. Stainless Steel 347 Flanges are particularly well-suited for high-temperature and corrosive environments, especially in welding scenarios. Available in a range of sizes, pressure ratings, and configurations, these flanges guarantee secure connections and long-lasting performance in piping systems across numerous industrial sectors.
Stainless Steel 347 is a niobium-stabilized austenitic stainless steel alloy that contains 17–20% chromium, 9–13% nickel, and a maximum of 0.08% carbon, with niobium (also known as columbium) added for stabilization. This unique composition helps prevent carbide precipitation during welding and boosts resistance to intergranular corrosion. Stainless Steel 347 Flanges boast a tensile strength of 515–620 MPa, yield strength of 205–275 MPa, elongation of 40–50%, and a hardness rating of around 80–90 HRB. These characteristics make them perfect for high-temperature, high-stress applications where both strength and corrosion resistance are vital.
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series 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 |
| 347 | 0.08 | 2.0 | 1.0 | 0.045 | 0.030 | 17.00 – 20.00 | 10xC – 1.10 | 9.00 – 13.00 | 62.74 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 | ||||
| 347 | 515 | 205 | 35 | 92 | 201 |
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SS 347 socket weld flanges, manufactured from stainless steel alloy 347, ensure secure pipe connections with enhanced corrosion resistance and high-temperature strength, suitable for high-pressure systems in various industries.
SS 347 ring type joint flanges, constructed from stainless steel alloy 347, provide leak-proof connections with excellent corrosion resistance and high-temperature performance, ideal for high-pressure and critical service applications.
SS 347 forged flanges, made from stainless steel alloy 347, offer superior strength, excellent corrosion resistance, and high-temperature endurance, making them ideal for demanding industrial applications and high-pressure environments.
We offers the best quality Stainless Steel 347 Flanges which has undergone intense testing to produce top quality and performance. The flange is thoroughly tested for meeting international standards and specifications. Products supplied by us are certified by recognized authorities for traceability and reliability in each batch. With modern technology and strict quality control, we ensure durability, corrosion resistance, and good mechanical properties. Harshita Stainless stands by the delivery of flanges with the highest level of industry standards in functionality and safety.
You’ll find Stainless Steel 347 Flanges widely used in industries like chemical processing, power generation, petroleum refining, and aerospace. Their remarkable resistance to oxidation, intergranular corrosion, and high-temperature scaling makes them ideal for applications such as heat exchangers, pressure vessels, reactors, and exhaust systems. These flanges are particularly advantageous for welded applications, where maintaining structural integrity under thermal stress is crucial. They also perform well in marine environments and high-temperature piping systems, ensuring secure and leak-proof connections. With their reliable performance in both oxidizing and reducing environments, 347 flanges are a go-to choice for long-lasting and critical applications.
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