Andre Stainless is well-known for its high-quality Stainless Steel 347H Flanges, serving as both a manufacturer and exporter. With a strong focus on precision engineering and quality, they cater to a variety of industries, including petrochemical, oil & gas, power generation, and marine sectors. Their cutting-edge manufacturing facilities and rigorous quality assurance processes ensure that every flange meets global standards like ASTM A182 and ASME specifications. Over the years, Andre Stainless has earned a solid reputation for reliability, prompt delivery, and a customer-centric approach, making them a go-to supplier for Stainless Steel 347H Flanges in Singapore and beyond.
The Stainless Steel 347H Flanges produced by Andre Stainless are primarily made of iron, featuring 17–20% chromium, 9–13% nickel, and a carbon content of up to 0.10%, all stabilized with columbium (niobium). This unique composition provides outstanding resistance to intergranular corrosion and performs well in high-temperature environments. These flanges boast a minimum tensile strength of 515 MPa, a minimum yield strength of 205 MPa, and an elongation of 35%. They also excel in creep strength and oxidation resistance. Andre Stainless is committed to ensuring that these mechanical properties remain consistent and dependable, making their flanges perfect for high-pressure and high-temperature piping systems.
| 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.
Industries that operate under extreme conditions frequently rely on Andre Stainless’s Stainless Steel 347H Flanges. They are commonly used in heat exchangers, pressure vessels, boiler equipment, furnace parts, and exhaust systems within chemical, petrochemical, and thermal power plants. The higher carbon content in 347H enhances its high-temperature strength, making these flanges ideal for continuous use at elevated temperatures. With their impressive mechanical performance and resistance to corrosion, they truly stand out in demanding applications.
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