Stainless Steel 347 Flanges are top-notch piping components crafted for situations that demand outstanding corrosion resistance, high-temperature strength, and lasting durability. Thanks to the addition of niobium, these flanges are resistant to intergranular corrosion, making them perfect for use in boilers, heat exchangers, pressure vessels, and industrial piping systems that face extreme temperatures and harsh chemical environments.
The makeup of Stainless Steel 347 Flanges includes iron, chromium, nickel, and niobium. Chromium is key for corrosion resistance, while nickel boosts toughness and ductility. Niobium plays a crucial role in stabilizing the microstructure, ensuring that the flanges maintain their mechanical integrity even at high temperatures. This combination results in flanges that boast impressive tensile strength, thermal stability, and creep resistance, guaranteeing secure, leak-proof connections in high-pressure and high-temperature settings.
| 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. Amer 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 in a variety of industries, including power plants, petrochemicals, chemical processing equipment, and high-temperature industrial pipelines. Their unique blend of mechanical strength, corrosion resistance, and heat tolerance makes them a reliable choice for long-lasting performance. These flanges offer durable, cost-effective, and trustworthy solutions for essential industrial, structural, and engineering needs.
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