Shawn Flanges is a trusted manufacturer and supplier of GOST 12821-80 Flanges based in Houston, USA. They provide high-quality solutions that meet Russian standards. These flanges are designed as butt-welded steel flanges, ensuring secure, leak-proof, and durable connections in high-pressure and high-temperature piping systems. Made from top-notch materials like carbon steel, stainless steel, and alloy steel, GOST 12821-80 Flanges promise a long service life and resistance to stress and corrosion. With various dimensions, pressure classes, and surface finishes available, they are in high demand across industries such as oil & gas, petrochemical, power generation, marine, and water treatment facilities around the globe.
GOST 12821-80 Flanges are crafted from high-strength materials, including carbon steel, alloy steel, and stainless steel, which contain elements like iron, carbon, chromium, nickel, and molybdenum. This well-balanced chemical composition boosts their corrosion resistance, weldability, and overall durability. On the mechanical side, these flanges deliver impressive tensile and yield strength, toughness, and precise dimensions, allowing them to excel under extreme temperatures and pressures. With outstanding impact resistance, hardness, and thermal stability, GOST 12821-80 Flanges maintain their integrity even in the toughest industrial conditions, making them a reliable choice for strong and long-lasting piping system connections.
| Size: | 1/2″NB TO 24″NB IN |
| Class: | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Materials: | Monel : Grade: Monel 400, Monel K500, Monel R-405 Nickel : Grade: Nickel 200, Nickel 201 Inconel : Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718 Incoloy : Grade: Incoloy 800, Inconel 800H, 800HT Hastalloy : Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X Titanium : Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11 Stainless Steel : Grade: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L Carbon Steel : Grade: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8 Duplex Steel: Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61 Alloy Steel: Grade : ASTM A182 F1, F5, F9, F11, F22, F91 |
| Value Added Service: | CNC Machine, Customized Flanges |
| Coating/Surface Treatment: | Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
| Nominal Bore GOST / ГОСТ 12820/12821-80 Flange | Dia. (D) | Thick. (E) | Dia. (B) | Dia. (A) | Height (H) | Nbr | Holes | Dia. (C) |
| 1/2″ | 90 | 11.2 | 30 | 22.9 | 16 | 4 | 15.87 | 60.3 |
| 3/4″ | 100 | 12.7 | 38 | 28.2 | 16 | 4 | 15.87 | 69.9 |
| 1″ | 110 | 14.3 | 49 | 34.9 | 17 | 4 | 15.87 | 79.4 |
| 1 1/4″ | 115 | 15.9 | 59 | 43.7 | 21 | 4 | 15.87 | 88.9 |
| 1 1/2″ | 125 | 17.5 | 65 | 50.0 | 22 | 4 | 15.87 | 98.4 |
| 2″ | 150 | 20.7 | 78 | 62.5 | 25 | 4 | 19.05 | 120.7 |
| 2 1/2″ | 180 | 22.3 | 90 | 75.4 | 29 | 4 | 19.05 | 139.7 |
| 3″ | 190 | 23.9 | 108 | 91.4 | 30 | 4 | 19.05 | 152.4 |
| 3 1/2″ | 215 | 23.9 | 122 | 104.1 | 32 | 8 | 19.05 | 177.8 |
| 4″ | 230 | 23.9 | 135 | 116.8 | 33 | 8 | 19.05 | 190.5 |
| 5″ | 255 | 23.9 | 164 | 144.4 | 36 | 8 | 22.22 | 215.9 |
| 6″ | 280 | 25.4 | 192 | 171.4 | 40 | 8 | 22.22 | 241.3 |
| 8″ | 345 | 28.6 | 246 | 222.2 | 44 | 8 | 22.22 | 298.5 |
| 10″ | 405 | 30.2 | 305 | 277.4 | 49 | 12 | 25.40 | 362.0 |
| 12″ | 485 | 31.8 | 365 | 328.2 | 56 | 12 | 25.40 | 431.8 |
| 14″ | 535 | 35.0 | 400 | 360.2 | 79 | 12 | 28.57 | 476.3 |
| 16″ | 595 | 36.6 | 457 | 411.2 | 87 | 16 | 28.57 | 539.8 |
| 18″ | 635 | 39.7 | 505 | 462.3 | 97 | 16 | 31.75 | 577.9 |
| 20″ | 700 | 42.9 | 559 | 514.4 | 103 | 20 | 31.75 | 635.0 |
| 24″ | 815 | 47.7 | 663 | 616.0 | 111 | 20 | 34.92 | 749.3 |
Shawn Flanges, a leading supplier in Houston, USA, offers an extensive selection of GOST / ГОСТ 12821-80 Flange, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
GOST / ГОСТ 12821-80 flanges are widely used in industries requiring robust and secure pipe connections, such as oil and gas, chemical processing, power generation, and water treatment. These flanges are designed for high-pressure applications and are used to join pipes, valves, pumps, and other equipment. Their excellent resistance to corrosion and ability to withstand extreme conditions make them ideal for critical applications in industrial environments. GOST 12821-80 flanges provide reliable sealing and durability, ensuring long-term performance in demanding operating conditions.
Yes, we offer custom sizes for GOST / ГОСТ 12821-80 Flange to meet specific project needs. Our team at Shawn Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@shawnflanges.us.
| Standard Of Flanges | Class Of Flanges | Diameter Of Flanges | Diameter Of Bolt Circle | Bolts Number | Size Of Bolt | Bolt Hole Diameter |
|---|---|---|---|---|---|---|
| AS4087 Flanges | PN14 Flanges | 95 | 67 | 4 | M12 | 14 |
| AS 2129 Flange | Table C Flanges | 95 | 67 | 4 | 13 | 14 |
| Table D Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table E Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table F Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table H Flanges | 114 | 83 | 4 | 16 | 17 | |
| Table J Flanges | 114 | 83 | 4 | 16 | 17 | |
| ANSI B16.5 Flanges | ANSI 150 Flanges | 89 | 60 | 4 | 13 | 16 |
| ANSI 300 Flanges | 95 | 67 | 4 | 13 | 16 | |
| ANSI 600 Flanges | 95 | 67 | 4 | 13 | 16 | |
| ANSI 900 Flanges | 121 | 83 | 4 | 19 | 22 | |
| ANSI 1500 Flanges | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 (DIN) Flange | PN6 Flanges | 80 | 55 | 4 | M10 | 11 |
| PN10 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN16 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN20 Flanges | 90 | 60.5 | 4 | M14 | 16 | |
| PN25 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN40 Flanges | 95 | 65 | 4 | M12 | 14 |
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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