Guaranteed on time delivery
Gayatri Tubes is a manufacturer, exporter and supplier of Alloy Steel F9 Flanges. We provide durable and standard flanges of premium quality that contribute to their business growth. These flanges are integral components of the piping system. We provide a comprehensive range of flanges including both customized and conventional flanges. These comply with the ASTM A182 specifications that cover flanges for working at high-temperature conditions.
Our flanges are economical than other flanges due to their perfect size and versatility. Slip-on flanges are a perfect example as they have a thin size and a high degree of versatility. We serve more flanges like this such as weld neck, socket weld, blind, orifice, spectacle blind, screwed, reducing, ring type, threaded and more. Flanges acquire their features from the alloy steel F9. Therefore, they have great corrosion resistance, high durability, high-temperature resisting, superior working strength, versatility, and toughness. Alloy steel F9 collar flanges have flawless finish high strength, supreme quality and sturdy construction. Lap joint flanges with 18 percent of chromium content are good for working at 870 degrees C temperature. The temperature range for plate flanges is different and it is decided as per the need for corrosion-resistant.
On the other hand, atmospheric conditions, chemical and water services prefer slip-on flanges because they are resistant to such conditions. The most used flange of the steel family is flat face flange. In tempered and quenched condition, threaded and spectacle blind flange is generally used. Another important flange that is used in the application with the need for corrosion resistance is welding neck flange. However, the final requirement of flanges in different applications depends on the customers. Applications, where flanges are preferred, include oil and gas plants, power plants, seawater and marine, hydrocarbon, piping equipment, and more. These industries require a qualitative product. Hence, we assure their qualities through various texts. Such are resistance test, chemical analysis, hardness test, tensile strength test, and more.
Since they are attached to the various pipes that varies in different dimensions hence custom size is required. Also, maintenance of flanges is essential to carry the smooth operation. Moreover, we ensure their smooth performance ability by conducting those tests and packing them for safe delivery.
| STANDARD | UNS | WERKSTOFF NR. |
| Alloy Steel F9 | K90941 | 1.7386 |
| Specifications | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size | 1/2″NB TO 60″NB |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H. |
| Grade | C | Mn | P | S | Si | Ni | Ch | Mo | Cb |
| F9 | 0.15 | 0.30-0.60 | 0.030 | 0.030 | 0.50-1.00 | - | 8.0-10.0 | 0.90-1.10 | - |
| 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 | ||||
| F9 | 585 | 380 | 20 | - | 179-217 |
