Kanak Metal & Alloys is a leading Flanges Manufacturer in India, supplying high-quality products consistently with our superior infrastructure. Our experienced engineers and value-driven business operations make us one of the largest and most trusted Flanges Manufacturer in the industry. We specialize in custom-size Flanges to meet our customers unique industrial needs. we have ruled this industry as the Best Flanges Manufacturers and Flanges Suppliers in India.

At Kanak Metal & Alloys, we use high-quality raw materials and have skilled professionals to ensure that our Socketweld Flanges and Slip-On Flanges meet global standards and have excellent heat and damage resistance. When selecting a Flanges manufacturer in India, quality and experience are critical factors to consider. Our Flanges are used across various industries due to their high corrosion resistance and weldability. We offer various grades & materials such as Stainless Steel, Carbon Steel, Alloy Steel, Duplex Steel, etc. based on customer needs. Additionally, we are a leading Pipes Manufacturer in India.
Flanges can be found in a variety of forms, each with special requirements. You must take the pipe’s size, structure, and pressure rating into account while selecting a flange. Also, you must confirm that the pipe and flange are compatible with one another.
For the needs of any project, these flanges are available in a range of grades and standards. In order for you to purchase flanges with assurance, we have listed the various grades and specifications in this chart.
| Flanges | Specifications |
|---|---|
| Type of Flanges | Slip-On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint. |
| Size | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000. |
| Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Lap-Joint Face (LJF), Large Male-Female (LMF), Small Male-Female (SMF), Large Tongue & Groove, Small Tongue, Groove. |
| Grade | |
| Stainless Steel | 200 Series – 201, 202, 205. 300 Series 301, 302, 303, 304, 304L, 308, 309, 309S, 310, 310S, 314, 316, 316L, 316TI, 317, 317L, 321, 347. 400 Series 405, 409, 429, 430, 430F, 430FSe, 434, 436, 442, 446, 403, 410, 414,416, 416Se, 420,420F, 422, 431, 440A, 440B, 440C. 500 Series – 501, 502. 600 Series – 630 (17-4 PH). |
| Carbon Steel | ASTM / ASME A105. ASTM / ASME A 350 LF 2 . |
| Alloy Steel | ASTM / ASME A 182 GR F 5, F 9 , F 11 , F 12 , F 22 , F 91. |
| Duplex / Super Duplex Steel | D S31803, D S32205, SD S32750, SD S32760, SD S32950. |
| Inconel | 601, 625, 660A, 718, X-750, 825, 925, 608. |
| Monel | 400, K500. |
| Hastelloy | C22, C276, X, B-2. |
The size and type of flange might change its dimensions. We will discuss the various flange dimensions in this chart and present a chart to help you in choosing the right flange for your requirements.
| DN (inch) |
Dimension | ANSI B16.5 Flange Dimensional Sizes 3 to 10 inches Table Chart | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 125 lbs 150 lbs |
300 lbs | 400 lbs | 600 lbs | 900 lbs | 1500 lbs | 2500 lbs | ||||||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | |||
| 3 | A | 7 1/2 | 190.5 | 81/4 | 209.6 | 81/4 | 209.6 | 8 1/4 | 209.6 | 9 1/2 | 241 | 10 1/2 | 267 | 12 | 305 | |
| b | 15/16 | 23.8 | 1 1/8 | 28.6 | 11/4 | 31.8 | 1 1/4 | 31.8 | 1 1/2 | 38.1 | 1 7/8 | 47.6 | 2 5/8 | 66.7 | ||
| D2 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | 5 | 127 | ||
| D1 | 6 | 152.4 | 6 5/8 | 168.3 | 6 5/8 | 168.3 | 6 5/8 | 168.3 | 71/2 | 190.5 | 8 | 203 | 9 | 228.6 | ||
| n | 4 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
| d | 3/4 | 19 | 7/8 | 22.2 | 7/8 | 22.2 | 7/8 | 22.2 | 1 | 25.4 | 1 1/4 | 31.8 | 1 3/8 | 34.9 | ||
| 3 1/2 | A | 8 1/2 | 215.9 | 9 | 228.6 | 9 | 228.6 | 9 | 228.6 | – | – | – | – | – | – | |
| b | 15/16 | 23.8 | 13/16 | 30.2 | 13/8 | 34.9 | 13/8 | 34.9 | – | – | – | – | – | – | ||
| D2 | 5 1/2 | 139.7 | 5 /2 | 139.7 | 5 1/2 | 139.7 | 5 1/2 | 139.7 | – | – | – | – | – | – | ||
| D1 | 7 | 177.8 | 7 1/4 | 184.2 | 7 1/4 | 184.2 | 7 1/4 | 184.2 | – | – | – | – | – | – | ||
| n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | – | – | – | – | – | – | ||
| d | 3/4 | 19 | 7/8 | 22.2 | 1 | 25.4 | 1 | 25.4 | – | – | – | – | – | – | ||
| 4 | A | 9 | 228.6 | 10 | 254 | 10 | 254 | 10 3/4 | 273 | 11 1/2 | 292 | 12 1/4 | 311 | 14 | 356 | |
| b | 15/16 | 23.8 | 1 1/4 | 31.7 | 1 3/8 | 34.9 | 1 1/2 | 38.1 | 1 3/4 | 44.4 | 2 1/8 | 54 | 3 | 76.2 | ||
| D2 | 6 3/16 | 157.2 | 6 3/16 | 157.2 | 6 3/16 | 157.2 | 6 3/16 | 157.2 | 6 3/16 | 157.2 | 6 3/16 | 157.2 | 6 3/16 | 157.2 | ||
| D1 | 7 1/2 | 190 | 7 7/8 | 200 | 7 7/8 | 200 | 8 1/2 | 215.9 | 9 1/4 | 235 | 9 1/2 | 241 | 10 3/4 | 273 | ||
| n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
| d | 3/4 | 19 | 7/8 | 22.2 | 1 | 25.4 | 1 | 25.4 | 1 1/4 | 31.8 | 1 3/8 | 34.9 | 1 5/8 | 41.3 | ||
| 5 | A | 10 | 254 | 11 | 279.4 | 11 | 279.4 | 13 | 330.2 | 13 3/4 | 349 | 14 3/4 | 375 | 16 1/2 | 419 | |
| b | 1 5/16 | 23.8 | 13/8 | 34.9 | 1 1/2 | 38.1 | 1 3/4 | 44.4 | 2 | 50.8 | 2 7/8 | 73 | 3 5/8 | 92.1 | ||
| D2 | 7 5/16 | 185.7 | 7 5/16 | 185.7 | 7 5/16 | 185.7 | 7 5/16 | 185.7 | 7 5/16 | 185.7 | 7 5/16 | 185.7 | 7 5/16 | 185.7 | ||
| D1 | 8 1/2 | 215.9 | 9 1/4 | 234.9 | 9 1/4 | 234.9 | 10 1/2 | 266.7 | 11 | 279 | 11 1/2 | 292 | 12 3/4 | 324 | ||
| n | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
| d | 7/8 | 22.2 | 7/8 | 22.2 | 1 | 25.4 | 1 1/8 | 28.6 | 1 3/8 | 34.9 | 1 5/8 | 41.3 | 1 7/8 | 47.6 | ||
| 6 | A | 11 | 279 | 12 1/2 | 317.5 | 12 1/2 | 317.5 | 14 | 355.6 | 15 | 381 | 15 1/2 | 394 | 19 | 483 | |
| b | 1 | 25.4 | 17/16 | 36.5 | 1 5/8 | 41.3 | 1 7/8 | 47.6 | 2 3/16 | 55.6 | 3 1/4 | 82.6 | 4 1/4 | 108 | ||
| D2 | 8 1/2 | 216 | 8 1/2 | 215.9 | 8 1/2 | 215.9 | 8 1/2 | 215.9 | 8 1/2 | 215.9 | 8 1/2 | 215.9 | 8 1/2 | 216 | ||
| D1 | 9 1/2 | 241 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | 11 1/2 | 292.1 | 12 1/2 | 318 | 12 1/2 | 318 | 14 1/2 | 368 | ||
| n | 8 | 8 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 8 | 8 | ||
| d | 7/8 | 22.2 | 7/8 | 22.2 | 1 | 25.4 | 1 1/8 | 28.6 | 1 1/4 | 31.8 | 1 1/2 | 38.1 | 2 1/8 | 54 | ||
| 8 | A | 13 1/2 | 342.9 | 15 | 381 | 15 | 381 | 16 1/2 | 419 | 18 1/2 | 470 | 19 | 482.6 | 21 3/4 | 552 | |
| b | 1 1/8 | 28.6 | 1 5/8 | 41.3 | 1 7/8 | 47.6 | 2 3/16 | 55.6 | 2 1/2 | 63.5 | 3 5/8 | 92.1 | 5 | 127 | ||
| D2 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | 10 5/8 | 269.9 | ||
| D1 | 11 3/4 | 298.4 | 13 | 330.2 | 13 | 330.2 | 13 3/4 | 349.2 | 15 1/2 | 394.2 | 15 1/2 | 394.2 | 17 1/4 | 438 | ||
| n | 8 | 8 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | ||
| d | 7/8 | 22.2 | 1 | 25.4 | 1 1/8 | 28.6 | 1 1/4 | 31.8 | 1 1/2 | 38.1 | 1 3/4 | 44.5 | 2 1/8 | 54 | ||
| 10 | A | 16 | 406.4 | 17 1/2 | 444.5 | 17 1/2 | 444.5 | 20 | 508 | 21 1/2 | 546 | 23 | 584 | 26 1/2 | 673 | |
| b | 1 3/16 | 30.2 | 1 7/8 | 47.6 | 2 1/8 | 54 | 2 1/2 | 63.5 | 2 3/4 | 69.8 | 4 1/4 | 108 | 6 1/2 | 165 | ||
| D2 | 12 3/4 | 323.8 | 12 3/4 | 323.8 | 12 3/4 | 323.8 | 12 3/4 | 323.8 | 12 3/4 | 323.8 | 12 3/4 | 323.8 | 12 3/4 | 323.8 | ||
| D1 | 14 1/4 | 361.9 | 15 1/4 | 387.4 | 15 1/4 | 387.4 | 17 | 431.8 | 18 1/2 | 470 | 19 | 482.6 | 21 1/4 | 540 | ||
| n | 12 | 12 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 12 | 12 | 12 | 12 | ||
| d | 1 | 25.4 | 1 1/8 | 28.6 | 1 1/4 | 31.8 | 1 3/8 | 34.9 | 1 1/2 | 38.1 | 2 | 50.8 | 2 5/8 | 66.7 | ||
Flanges are used in unique and demanding applications including the blades of jet engines, spacecraft, and nuclear reactors. In the metal sector, flanges are a well-known product, and Kanak Metal & Alloys is a prominent flanges Manufacturer and Supplier in India .
| Products | Cities/ States |
|---|---|
| Flanges Supplied to Paper Mill | Rajasthan |
| Slip-On Flanges Supplied to Power Plants | Coimbatore |
| Blind Flanges Supplied to Chemical Industry | Pune, Maharashtra |
| Flanges Suppliers | Vijayawada, Hyderabad |

Kanak Metal & Alloys uses optimal packaging methods, such as special 4-layer packaging for exports. The packaging procedure ensures that the materials arrive in perfect condition. Flanges are used in a variety of industries, including sugar, nuclear, marine, and defense.
Kanak Metal & Alloys is a global supplier and dealer of Flanges, offering a wide range of products. Our highly efficient supply procedure complies with global quality standards, allowing us to maintain our position as a top-tier Flanges Manufacturer & Flanges Supplier in India.
Kanak Metal & Alloys is a well-known company that offers various types of Flanges. We supply Flanges products to customers in India and around the world, including the United States, the United Kingdom, Australia, and others. We offer Flanges at a reasonable price to our customers.
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