Kyaw Stainless is a prominent manufacturer and supplier located in Naypyidaw, Myanmar, with a focus on high-quality Stainless Steel 347 Flanges. We pride ourselves on precision engineering and delivering top-notch performance, ensuring our products meet international standards for strength, durability, and resistance to corrosion. Our SS 347 flanges are crafted to perform reliably in high-temperature and corrosive settings, making them perfect for a variety of industrial applications. We prioritize innovation, quality assurance, and customer satisfaction, offering tailored flange solutions for sectors like chemical processing, oil and gas, power generation, and marine engineering.
Stainless Steel 347 Flanges are enhanced with columbium (niobium), providing exceptional resistance to intergranular corrosion even after being exposed to high temperatures. The typical makeup includes chromium (17–19%), nickel (9–13%), carbon (≤0.08%), and niobium with tantalum. These flanges boast impressive mechanical properties, including a minimum tensile strength of 515 MPa, a yield strength of at least 205 MPa, and an elongation of around 40%. SS 347 flanges also demonstrate good creep strength and toughness, even at elevated temperatures, making them ideal for long-term, high-stress environments.
| 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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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.
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.
Superior strength, excellent corrosion resistance, and high-temperature endurance, making them ideal for demanding industrial applications and high-pressure environments.
You’ll find Stainless Steel 347 Flanges widely used in industries that demand exceptional heat and corrosion resistance. They’re commonly found in petroleum refining, chemical processing, power plants, heat exchangers, and exhaust manifolds. Their remarkable stability against carbide precipitation allows for continuous operation at temperatures reaching up to 870°C. Additionally, SS 347 flanges are utilized in aerospace components, pressure vessels, and piping systems that handle high-temperature gases or fluids. Their blend of mechanical strength, oxidation resistance, and formability guarantees reliable performance in challenging industrial and high-temperature applications.
Kyaw Stainless offers test certificates, such as Mill Test Certificates (MTC) according to EN 10204 3.1, that meet international standards of quality. The flanges are carefully packaged in wooden crates, bubble wrap, or carton boxes for protection during transit. With its effective logistics system, Kyaw Stainless ensures timely and reliable global delivery, fulfilling industrial requirements with accuracy and care.
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