MERIH STAINLESS, located in Istanbul, Turkey, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 347 Flanges, catering to a variety of industries around the globe. With a strong focus on precision engineering and cutting-edge technology, the company produces flanges that are not only durable but also resistant to corrosion, all while adhering to international standards. Renowned for their impressive strength and outstanding performance even at high temperatures, the Stainless Steel 347 Flanges from MERIH STAINLESS are crafted to endure tough conditions. The company prioritizes quality assurance, prompt delivery, and customer satisfaction, making them a trusted partner for clients in sectors like oil and gas, petrochemicals, power generation, and other heavy-duty industrial applications that demand reliable flange solutions.
Stainless Steel 347 Flanges are a type of stabilized austenitic stainless steel that includes chromium, nickel, and columbium (niobium), which boosts their resistance to intergranular corrosion. Typically, their makeup consists of about 17–19% chromium, 9–13% nickel, along with trace amounts of columbium and tantalum for stabilization. On the mechanical side, they boast a tensile strength of around 515 MPa and a yield strength of 205 MPa, along with excellent resistance to creep and stress-rupture at elevated temperatures. With their impressive toughness, durability, and weldability, these flanges ensure reliable performance in corrosive and heat-intensive settings, making them perfect for long-term industrial use.
| 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.
Stainless Steel 347 Flanges find their place in various industries that require components capable of withstanding high temperatures and corrosion. Their remarkable creep strength and resistance to intergranular corrosion make them particularly suited for petrochemical processing, oil and gas pipelines, chemical plants, and power generation facilities. They are also essential in high-pressure steam systems, heat exchangers, boilers, and exhaust systems where performance at elevated temperatures is crucial. Additionally, industries such as aerospace, food processing, and pharmaceuticals reap the benefits of their durability and hygienic properties.
SS 347 Flanges are widely used in industries having high corrosion resistance and heat stability. Especially in chemical processing, petrochemical and power generation plants, stainless steel 347 flanges are most suitable for high temperature applications. Stainless Steel 347 is also resistance to intergranular corrosion, so it is used in welded structures. These flanges are widely used in the aerospace industry, food processing, and pharmaceutical sectors because of their durability and resistance to oxidation. They are also used in heat exchangers, reactors, and pressure vessels, where their strength, weldability, and resistance to scaling under high-temperature conditions are essential.
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