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Emilio Stainless is a reliable and experienced manufacturer and supplier of Stainless Steel 347H Flanges based in Manila, Philippines. Specializing in high-performance flanges for demanding industrial applications, the company delivers products that meet international quality standards and are suitable for high-temperature and corrosive environments. Emilio Stainless serves clients across industries such as oil and gas, petrochemical, power generation, and marine. With state-of-the-art manufacturing capabilities, strict quality assurance, and a customer-first approach, Emilio Stainless is recognized as a trusted partner for Stainless Steel 347H Flanges throughout the Philippines and Southeast Asia.
Stainless Steel 347H Flanges from Emilio Stainless are made from a high-carbon version of stabilized austenitic stainless steel, containing 17–19% chromium, 9–13% nickel, and niobium (columbium) for improved resistance to intergranular corrosion. The higher carbon content in 347H enhances creep strength at elevated temperatures. These flanges exhibit mechanical properties such as a tensile strength of approximately 515 MPa and yield strength of 205 MPa. They are also highly resistant to oxidation and thermal fatigue, making them ideal for prolonged exposure to high temperatures in critical piping systems and heat-based processes.
Emilio Stainless manufactures Stainless Steel 347H Flanges for use in high-pressure, high-temperature applications across several industrial sectors. These flanges are commonly used in heat exchangers, boilers, pressure vessels, and piping systems in chemical plants, refineries, and power stations. Their ability to withstand thermal cycling and corrosive conditions makes them suitable for flanged joints in severe operating environments. Each flange is engineered to deliver superior strength, tight sealing, and long service life. Emilio Stainless ensures all products comply with international standards, providing reliable and cost-effective flange solutions to meet complex project requirements.
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Emilio Stainless manufactures Stainless Steel 347H Flanges specifically for high-pressure, high-temperature applications across various industrial sectors. These flanges are frequently utilized in heat exchangers, boilers, pressure vessels, and piping systems within chemical plants, refineries, and power stations. Their ability to endure thermal cycling and corrosive conditions makes them perfect for flanged joints in demanding operating environments. Each flange is meticulously engineered to provide exceptional strength, ensuring reliability in even the most challenging conditions.
| 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 |
| 347H | 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 | ||||
| 347H | 515 | 205 | 35 | 92 | 201 |
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SS 347Hsocket weld flanges, manufactured from stainless steel alloy 347H, ensure secure pipe connections with enhanced corrosion resistance and high-temperature strength, suitable for high-pressure systems in various industries.
SS 347H ring type joint flanges, constructed from stainless steel alloy 347H, provide leak-proof connections with excellent corrosion resistance and high-temperature performance, ideal for high-pressure and critical service applications.
SS 347H forged flanges, made from stainless steel alloy 347H, offer superior strength, excellent corrosion resistance, and high-temperature endurance, making them ideal for demanding industrial applications and high-pressure environments.
We conduct various rigorous tests, including dimensional, mechanical, and chemical analysis, to ensure the highest quality of our Stainless Steel 347H Flanges. Our in-house quality control team oversees all processes, complemented by third-party inspections to guarantee compliance with industry standards. With a commitment to prompt delivery we ensure that our clients receive their products on time, every time.
Stainless Steel 347H Flanges are used in very high stress and also under high-temperature conditions. It is highly resistant to corrosion and oxidation. It is used in chemical processing, refineries, and power plants where temperatures are at high levels with extra harsh condition. The added columbium and tantalum increase stability and sensitize to resistance so that there will be no intergranular corrosion. In other industries, the 347H flanges are used in the equipment, like boilers, heat exchangers, and reactors in petrochemical, pharmaceutical, and food processing industries. This makes them the choice for extreme application in critical use in several fields.
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