API 6A Flanges are specialized flanged connections used in wellhead and Christmas tree equipment within the oil and gas industry. Manufactured according to the API 6A standard, these flanges are designed to handle high-pressure, high-temperature conditions typically encountered in upstream operations. They are primarily used to ensure a reliable seal between components in drilling and production systems.
API 6A flanges come in various types, including hubbed, flanged, and blind flanges, with pressure ratings ranging from 2,000 psi to 20,000 psi. The materials used for API 6A flanges typically include carbon steel and alloy steel, selected for their ability to withstand extreme pressures, harsh environments, and corrosive fluids. The flanges are available in various sizes and pressure classes to meet the specific needs of different oil and gas applications. API 6A flanges are essential for maintaining safe and secure connections in critical equipment, offering high integrity and resistance to external stress, making them crucial components in the oil and gas industry.
Arrow Piping Solutions is a trusted supplier of API 6A flanges, offering high-quality products designed for the demanding conditions of the oil and gas industry. With strict adherence to API 6A standards, they provide a wide range of materials such as carbon steel, alloy steel, and stainless steel to meet various application needs. Their flanges are precision-engineered for durability, reliability, and excellent performance in high-pressure environments. We also offers customization options, competitive pricing, and timely delivery, making them a reliable choice for your API 6A flange requirements. satisfaction by delivering flanges tailored to specific needs.
15mm (1/2" NPS ) up to 600mm ( 24" NPS ), For 2500# in sizes from NPS 1/2 to NPS 12
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64.
FF—Flat Face, RF—Raised Face, FM—Female Face, M—Male Face, T—Tongue Face, G—Groove Face, RJ—Ring Joint.
ASTM A105/A105N (SA105N), LTCS A350 LF2, A694
ASTM A182 / ASME SA182 - S31803, S32205, 2205, S32750, S32760, S32950, 2507.
ASTM A182 F304, 304L, 304H, 316, 316L, 316H, 317, 317L, 321, 321H, 310, 310S, 347, 904L, etc.
ASTM A182 / SA182 - F1 / F5 / F9 / F11 / F12 / F22 / F91
EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103
| Size | B | OD | C (MAX.) | K | P | E | T | Q | X | BC | N | H | LN | HL | JL | Ring Number R or RX |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 1/16" | 53.2 | 165 | 3 | 108 | 82.55 | 7.9 | 33.4 | 25.4 | 84 | 127 | 8 | 20 | 81 | 60.3 | 53.3 | 23, 26, 31, 37 |
| 2 9/16" | 65.9 | 190 | 3 | 127 | 101.60 | 7.9 | 36.6 | 28.6 | 100 | 149.2 | 8 | 23 | 91 | 73.0 | 63.5 | 41, 45, 49, 53 |
| 3 1/8" | 81.8 | 210 | 4 | 146 | 123.83 | 7.9 | 39.7 | 31.8 | 117 | 168.3 | 8 | 23 | 110 | 88.9 | 78.7 | 57, 65, 73 |
| 4 1/16" | 108.7 | 275 | 5 | 175 | 149.23 | 7.9 | 46.1 | 38.1 | 152 | 215.9 | 12 | 26 | 122 | 114.3 | 103.1 | |
| 7 1/8" | 131.0 | 330 | 7 | 210 | 180.98 | 7.9 | 52.4 | 44.5 | 189 | 266.7 | 16 | 29 | 126 | 141.3 | 122.9 | |
| 9 1/16" | 181.8 | 355 | 9 | 241 | 211.15 | 7.9 | 55.6 | 47.6 | 222 | 292.1 | 20 | 29 | 141 | 168.3 | 147.1 | |
| 11" | 229.4 | 420 | 13 | 302 | 269.88 | 7.9 | 63.5 | 55.6 | 273 | 349.3 | 20 | 32 | 160 | 219.1 | 199.1 | |
| 13 5/8" | 280.2 | 510 | 16 | 356 | 323.85 | 7.9 | 71.5 | 63.5 | 343 | 431.8 | 24 | 35 | — | 273.0 | 248.4 | |
| 16 3/4" | 346.9 | 560 | 21 | 413 | 381.00 | 7.9 | 74.7 | 66.7 | 400 | 489 | — | 35 | — | — | — | |
| 21 1/4" | 426.2 | 685 | — | 508 | 469.90 | 7.9 | 84.2 | 76.2 | 495 | 603.2 | — | 42 | — | — | — | |
| 26 3/4" | 540.5 | 815 | — | 635 | 584.20 | 9.7 | 98.5 | 88.9 | 610 | 723.9 | — | 45 | — | — | — |
| Size | B | OD | C (MAX.) | K | P | E | T | Q | X | BC | N | H | LN | HL | JL | Ring Number R or RX |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 1/16" | 53.2 | 215 | 3 | 124 | 95.25 | 7.9 | 46.1 | 38.1 | 104.8 | 165.1 | 8 | 26 | 109.6 | 60.3 | 50.0 | 24, 27, 31 |
| 2 9/16" | 65.9 | 245 | 3 | 137 | 107.95 | 7.9 | 49.3 | 41.3 | 123.8 | 190.5 | 8 | 29 | 112.7 | 73.0 | 59.7 | 37, 41, 45 |
| 3 1/8" | 81.8 | 240 | 4 | 156 | 123.83 | 7.9 | 46.1 | 38.1 | 127.0 | 190.5 | 8 | 26 | 109.5 | 88.9 | 74.4 | 49, 53, 57 |
| 4 1/16" | 108.7 | 290 | 5 | 181 | 149.23 | 7.9 | 52.4 | 44.4 | 158.8 | 235.0 | 12 | 32 | 122.2 | 114.3 | 98.0 | 66, 74 |
| 7 1/8" | 131.0 | 350 | 7 | 216 | 180.98 | 7.9 | 58.8 | 50.8 | 190.5 | 279.4 | 16 | 35 | 134.9 | 141.3 | 122.9 | |
| 9 1/16" | 181.8 | 380 | 9 | 241 | 211.15 | 7.9 | 63.5 | 55.6 | 235.0 | 317.5 | 20 | 32 | 147.6 | 168.3 | 147.1 | |
| 11" | 229.4 | 470 | 13 | 308 | 269.88 | 7.9 | 71.5 | 63.5 | 298.5 | 393.7 | 20 | 39 | 169.9 | 219.1 | 189.7 | |
| 13 5/8" | 280.2 | 545 | 16 | 362 | 323.85 | 7.9 | 77.8 | 69.9 | 368.3 | 469.9 | 20 | 39 | 192.1 | 273.0 | 237.2 | |
| 16 3/4" | 346.9 | 610 | 20 | 419 | 381.00 | 7.9 | 87.4 | 79.4 | 419.1 | 533.4 | - | 39 | - | - | - | |
| 21 3/4" | 426.2 | 705 | - | 524 | 469.90 | 11.2 | 100.1 | 88.9 | 508.0 | 616.0 | - | 45 | - | - | - | |
| 26 3/4" | 527.8 | 855 | - | 648 | 584.20 | 12.7 | 120.7 | 108 | 622.3 | 749.3 | - | 54 | - | - | - |
| Size | B | OD | C (MAX.) | K | P | E | T | Q | X | BC | N | H | LN | HL | JL | Ring Number R or RX |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 1/16" | 53.2 | 215 | 3 | 124 | 95.25 | 7.9 | 46.1 | 38.1 | 104.8 | 165.1 | 8 | 26 | 109.6 | 60.3 | 50.0 | 24, 27, 31 |
| 2 9/16" | 65.9 | 245 | 3 | 137 | 107.95 | 7.9 | 49.3 | 41.3 | 123.8 | 190.5 | 8 | 29 | 112.7 | 73.0 | 59.7 | 37, 41, 45 |
| 3 1/8" | 81.8 | 240 | 4 | 156 | 123.83 | 7.9 | 46.1 | 38.1 | 127.0 | 190.5 | 8 | 26 | 109.5 | 88.9 | 74.4 | 49, 53, 57 |
| 4 1/16" | 108.7 | 290 | 5 | 181 | 149.23 | 7.9 | 52.4 | 44.4 | 158.8 | 235.0 | 12 | 32 | 122.2 | 114.3 | 98.0 | 66, 74 |
| 7 1/8" | 131.0 | 350 | 7 | 216 | 180.98 | 7.9 | 58.8 | 50.8 | 190.5 | 279.4 | 16 | 35 | 134.9 | 141.3 | 122.9 | |
| 9 1/16" | 181.8 | 380 | 9 | 241 | 211.15 | 7.9 | 63.5 | 55.6 | 235.0 | 317.5 | 20 | 32 | 147.6 | 168.3 | 147.1 | |
| 11" | 229.4 | 470 | 13 | 308 | 269.88 | 7.9 | 71.5 | 63.5 | 298.5 | 393.7 | 20 | 39 | 169.9 | 219.1 | 189.7 | |
| 13 5/8" | 280.2 | 545 | 16 | 362 | 323.85 | 7.9 | 77.8 | 69.9 | 368.3 | 469.9 | 20 | 39 | 192.1 | 273.0 | 237.2 | |
| 16 3/4" | 346.9 | 610 | 20 | 419 | 381.00 | 7.9 | 87.4 | 79.4 | 419.1 | 533.4 | - | 39 | - | - | - | |
| 21 3/4" | 426.2 | 705 | - | 524 | 469.90 | 11.2 | 100.1 | 88.9 | 508.0 | 616.0 | - | 45 | - | - | - | |
| 26 3/4" | 527.8 | 855 | - | 648 | 584.20 | 12.7 | 120.7 | 108 | 622.3 | 749.3 | - | 54 | - | - | - |
API 6A, established by the American Petroleum Institute, sets the industry standard for flanged connections used in wellhead and Christmas tree equipment within the oil and gas industry. The standard covers the design, manufacturing, testing, and material specifications for flanges to ensure safety, performance, and durability under high-pressure, high-temperature conditions.
Choose Arrow Piping Solutions for your API 6A flanges and experience reliable, high-performance flanges designed to meet the demanding standards of the oil and gas industry.
Strict adherence to API 6A standards, ensuring high-pressure and high-temperature performance, with rigorous quality control.
Flexible sizes, pressure ratings, and material grades to meet unique project requirements.
A team of engineers and technical specialists available for guidance and technical support throughout the process.
Reliable global supply chain to ensure on-time delivery and project schedule adherence.
Flange facings in API 6A flanges refer to the surface finish and configuration of the flange face, which determines how the flange will interface with other components in the piping system.
API 6A flanges undergo stringent testing procedures, including hydrostatic testing, pressure testing, and visual inspection to verify the strength, integrity, and leak-proof performance under pressure.
Yes, API 6A flanges are designed to be compatible with other global standards such as ASME B16.5, DIN, and ISO for cross-compliance across different industries.