Hindco Steel and Alloys is a well-known name among Stainless Steel 347 Flanges Manufacturers in India. We are recognized around the world for providing durable, high-performance flanges suitable for tough applications. These flanges are made from stabilized stainless steel alloy 347, which includes columbium to prevent intergranular corrosion. As reliable Stainless Steel 347 Flanges Suppliers, our products meet international quality standards and are exported to countries in Asia, Europe, the Middle East, and North America.
Stainless Steel 347 Flanges are designed to connect pipes, pumps, valves, and other equipment in high-temperature settings. They are non-magnetic when annealed and remain tough even at very low temperatures. As trusted Stainless Steel 347 Flanges Stockists, Hindco Steel and Alloys offers a variety of pressure classes, sizes, and dimensions to meet specific project needs in industries like oil and gas, petrochemicals, and power generation.
The main advantages of Stainless Steel 347 Flanges include excellent resistance to oxidation up to 1500°F (816°C), high creep strength, and improved mechanical properties at high temperatures. Unlike standard stainless steel grades, alloy 347 is stabilized with niobium, which makes it more resistant to carbide precipitation during welding. As reliable Stainless Steel 347 Flanges Exporters, we offer solutions that provide longer service life, lower maintenance costs, and strong performance in extreme conditions.
Different types of Stainless Steel 347 Flanges are available, including weld neck flanges, slip-on flanges, socket weld flanges, blind flanges, threaded flanges, and lap joint flanges. At Hindco Steel and Alloys, we stock all these variations to support our global clients. As experienced Stainless Steel 347 Flanges Manufacturers, we supply flanges that meet international standards like ASTM A182 F347, ASME SA182, ANSI, DIN, EN, and JIS. This ensures they work well with various piping systems.
Stainless Steel 347 Flanges are commonly used in various industries because they can handle tough environments. In the petrochemical industry, these flanges are often found in piping systems that deal with corrosive fluids. In the oil and gas sector, Stainless Steel 347 Flanges are used in offshore drilling platforms and refineries thanks to their strong mechanical properties. The chemical processing industry depends on these flanges to move high-temperature acids and solvents. In the power generation industry, Stainless Steel 347 Flanges are found in boilers, superheaters, and heat exchangers. The food and beverage industry uses these flanges for hygienic processing equipment because they do not react with substances. Additionally, Stainless Steel 347 Flanges are frequently used in the pharmaceutical industry, where resistance to contamination is essential, and in the marine industry for shipbuilding applications that need to withstand seawater corrosion.
Across global markets, Stainless Steel 347 Flanges go by various standards and names. In Europe, they are often called X6CrNiNb18-10 according to EN standards. In the United States, ASTM A182 F347 is the most common name. In Germany, they are referred to as Werkstoff Nr. 1.4550 and 1.4551. In Japan, the JIS SUS 347 name is widely used. As versatile Stainless Steel 347 Flanges Exporters, Hindco Steel and Alloys makes sure that clients from different countries receive products that meet their local requirements.
| Specifications List | ASTM A182 / ASME SA182 |
|---|---|
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) |
| ASTM Standards |
ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc. |
| Standard Flange | ANSI, ASME, BS, DIN, EN etc. |
| Element | Cr | Ni | C | Mn | P | S | Si | Cb + Ta | Fe |
|---|---|---|---|---|---|---|---|---|---|
| 347 | 17.00 min.-19.00 max. | 9.00 min.-13.00 max. | 0.08 | 2.00 | 0.045 | 0.03 | 0.75 | 10 x (C + N) min.-1.00 max. | Balance |
| Yield Strength 0.2% Offset |
Ultimate Tensile Strength |
Elongation in 2 in. |
Hardness | ||
|---|---|---|---|---|---|
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 201 Brinell |
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