Home > GOST / ГОСТ 12821-80 Flange
Based in Dubai, United Arab Emirates, Jinay Metals is a well-known manufacturer and supplier of GOST / ؓОСT 12821-80 flanges, known for producing high-quality, precisely engineered goods. With years of experience in the metal industry, we are experts at creating high-performance, long-lasting flanges that adhere to GOST and other international standards. Our cutting-edge production facilities and stringent quality control procedures guarantee dependability, durability, and a long service life. Jinay Metals is dedicated to delivering outstanding products and customer satisfaction in the UAE and international markets, catering to a variety of industries including construction, petrochemical, oil and gas, and marine.
GOST 12821-80 Flange specifies steel welding neck flanges for pipelines, valves, and equipment. These flanges are made from carbon, alloy, or stainless steels depending on service conditions. Common materials include steels like 20, 09G2S, and 12Kh18N10T. They exhibit good mechanical strength, ductility, and corrosion resistance. Typical mechanical properties: tensile strength 370–520 MPa, yield strength ≥215 MPa, and elongation ≥22%. Designed for pressures up to PN 250 (25 MPa), they ensure reliable sealing, durability under temperature variations, and compatibility with industrial pipeline systems.
| 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 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Blind Flanges from Jinay Metals ensures unmatched quality and long-lasting performance. These Flanges are engineered for superior corrosion resistance, strength, and precision, making them ideal for a wide range of industrial applications. With a strong focus on customer satisfaction, timely delivery, and technical expertise. Jinay Metals providing reliable and high-performance GOST / ГОСТ 12821-80 Flange tailored to meet your specific operational and project requirements.
| 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 |
Jinay Metals, one of the leading suppliers of GOST / ГОСТ 12821-80 Flange in Dubai, UAE, offers a wide selection of high-quality flanges suitable for various industrial applications. With an extensive inventory, reliable sourcing, and a strong commitment to quality, service, and timely delivery, Jinay Metals has established itself as a trusted name for premium stainless steel products across the UAE.
Yes, we provide GOST / ГОСТ 12821-80 Flange to match your exact project requirements. At Jinay Metals, our team is dedicated to delivering tailored flanges solutions that ensure precision and reliability. For more information or personalized assistance, reach out to us at sales@jinaymetals.ae.
In industries that demand safe and leak-proof joints, GOST 12821-80 flanges are frequently used in piping systems to connect pipes, valves, pumps, and other equipment. These welded neck flanges, which are frequently used in the petrochemical, water treatment, power generation, and oil and gas industries, guarantee excellent strength and durability under temperature and pressure changes. They work well for moving fluids, steam, and gases in challenging conditions. GOST 12821-80 flanges, which are designed in accordance with CIS and Russian standards, are prized for their accuracy, dependability, and material compatibility, which guarantee effective pipeline assembly and maintenance in a variety of industrial applications.
