Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
Zhengzhou Huitong Pipeline Equipment Co., Ltd.
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1. ASTM A815 S31803 Duplex Steel Concentric Reducer is a kind of pipe fitting used in pipeline that reduces the pipe size from a larger bore to a smaller bore (inner diameter). The length of the reduction is usually equal to the average of the larger and smaller pipe diameters. There are two main types of reducer: Concentric reducers,and eccentric reducer.
2. ASTM A815 S31803 Duplex Steel Concentric Reducer material available in
| SPECIAL ALLOY | Inconel 600, Inconel 625, Inconel 718, Inconel X750, Incoloy 800, |
| Incoloy 800H, Incoloy 825, Hastelloy C276, Monel 400, Monel K500 | |
| WPS 31254 S32750, UNS S32760 | |
| STAINLESS STEEL | ASTM A403 WP304/304L, WP316/316L, WP321, WP347, WPS 31254 |
| Duplex& super duplex stainless steel | ASTM A 815 UNS S31803, UNS S32750, UNS S32760 |
3. Dimensions Butt Weld ASTM A815 S31803 Duplex Steel Concentric Reducer ASME B16.9
| NPS | O.D. D | O.D. D1 | Len H |
| 3/4-1/2 | 26.7 | 21.3 | 38 |
| 1-1/2 | 33.4 | 21.3 | 51 |
| 1-3/4 | 33.4 | 26.7 | 51 |
| 1.1/4-1/2 | 42.2 | 21.3 | 51 |
| 1.1/4-3/4 | 42.2 | 26.7 | 51 |
| 1.1/4-1 | 42.2 | 33.4 | 51 |
| 1.1/2-1/2 | 48.3 | 21.3 | 64 |
| 1.1/2-3/4 | 48.3 | 26.7 | 64 |
| 1.1/2-1 | 48.3 | 33.4 | 64 |
| 1.1/2-1.1/4 | 48.3 | 42.2 | 64 |
| 2-3/4 | 60.3 | 26.7 | 76 |
| 2-1 | 60.3 | 33.4 | 76 |
| 2-1.1/4 | 60.3 | 42.2 | 76 |
| 2-1.1/2 | 60.3 | 48.3 | 76 |
| NPS | O.D. D | O.D. D1 | Len H |
| 2.1/2-1 | 73 | 33.4 | 89 |
| 2.1/2-1.1/4 | 73 | 42.2 | 89 |
| 2.1/2-1.1/2 | 73 | 48.3 | 89 |
| 2.1/2-2 | 73 | 60.3 | 89 |
| 3-1.1/4 | 88.9 | 42.2 | 89 |
| 3-1.1/2 | 88.9 | 48.3 | 89 |
| 3-2 | 88.9 | 60.3 | 89 |
| 3-2.1/2 | 88.9 | 73 | 89 |
| 3.1/2-1.1/4 | 101.6 | 42.2 | 102 |
| 3.1/2-1.1/2 | 101.6 | 48.3 | 102 |
| 3.1/2-2 | 101.6 | 60.3 | 102 |
| 3.1/2-2.1/2 | 101.6 | 73 | 102 |
| 3.1/2-3 | 101.6 | 88.9 | 102 |
| NPS | O.D. D | O.D. D1 | Len H |
| 4-1.1/2 | 114.3 | 48.3 | 102 |
| 4-2 | 114.3 | 60.3 | 102 |
| 4-2.1/2 | 114.3 | 73 | 102 |
| 4-3 | 114.3 | 88.9 | 102 |
| 4-3.1/2 | 114.3 | 101.6 | 102 |
| 5-2 | 141.3 | 60.3 | 127 |
| 5-2.1/2 | 141.3 | 73 | 127 |
| 5-3 | 141.3 | 88.9 | 127 |
| 5-3.1/2 | 141.3 | 101.6 | 127 |
| 5-4 | 141.3 | 114.3 | 127 |
| 6-2.1/2 | 168.3 | 73 | 140 |
| 6-3 | 168.3 | 88.9 | 140 |
| 6-3.1/2 | 168.3 | 101.6 | 140 |
| 6-4 | 168.3 | 114.3 | 140 |
| 6-5 | 168.3 | 141.3 | 140 |
| NPS | O.D. D | O.D. D1 | Len H |
| 8-3.1/2 | 219.1 | 101.6 | 152 |
| 8-4 | 219.1 | 114.3 | 152 |
| 8-5 | 219.1 | 141.3 | 152 |
| 8-6 | 219.1 | 168.3 | 152 |
| 10-4 | 273 | 114.3 | 178 |
| 10-5 | 273 | 141.3 | 178 |
| 10-6 | 273 | 168.3 | 178 |
| 10-8 | 273 | 219.1 | 178 |
| 12-5 | 323.9 | 141.3 | 203 |
| 12-6 | 323.9 | 168.3 | 203 |
| 12-8 | 323.9 | 219.1 | 203 |
| 12-10 | 323.9 | 273 | 203 |
| 14-6 | 355.6 | 168.3 | 330 |
| 14-8 | 355.6 | 219.1 | 330 |
| 14-10 | 355.6 | 273 | 330 |
| 14-12 | 355.6 | 323.9 | 330 |
| NPS | O.D. D | O.D. D1 | Len H |
| 16-8 | 406.4 | 219 | 356 |
| 16-10 | 406.4 | 273 | 356 |
| 16-12 | 406.4 | 323.9 | 356 |
| 16-14 | 406.4 | 355.6 | 356 |
| 18-10 | 457 | 273 | 381 |
| 18-12 | 457 | 323.9 | 381 |
| 18-14 | 457 | 355.6 | 381 |
| 18-16 | 457 | 406.4 | 381 |
| 20-12 | 508 | 323.9 | 508 |
| 20-14 | 508 | 355.6 | 508 |
| 20-16 | 508 | 406.4 | 508 |
| 20-18 | 508 | 457 | 508 |
| 22-14 | 559 | 355.6 | 508 |
| 22-16 | 559 | 406.4 | 508 |
| 22-18 | 559 | 457 | 508 |
| 22-20 | 559 | 508 | 508 |
| NPS | O.D. D | O.D. D1 | Len H |
| 24-16 | 610 | 406.4 | 508 |
| 24-18 | 610 | 457 | 508 |
| 24-20 | 610 | 508 | 508 |
| 24-22 | 610 | 559 | 508 |
| 26-18 | 660 | 457 | 610 |
| 26-20 | 660 | 508 | 610 |
| 26-22 | 660 | 559 | 610 |
| 26-24 | 660 | 610 | 610 |
| 28-18 | 711 | 457 | 610 |
| 28-20 | 711 | 508 | 610 |
| 28-24 | 711 | 610 | 610 |
| 28-26 | 711 | 660 | 610 |
| 30-20 | 762 | 508 | 610 |
| 30-24 | 762 | 610 | 610 |
| 30-26 | 762 | 660 | 610 |
| 30-28 | 762 | 711 | 610 |
| 32-24 | 813 | 610 | 610 |
| 32-26 | 813 | 660 | 610 |
| 32-28 | 813 | 711 | 610 |
| 32-30 | 813 | 762 | 610 |
| NPS | O.D. D | O.D. D1 | Len H |
| 34-24 | 864 | 610 | 610 |
| 34-26 | 864 | 660 | 610 |
| 34-30 | 864 | 762 | 610 |
| 34-32 | 864 | 813 | 610 |
| 36-24 | 914 | 610 | 610 |
| 36-26 | 914 | 660 | 610 |
| 36-30 | 914 | 762 | 610 |
| 36-32 | 914 | 813 | 610 |
| 36-34 | 914 | 864 | 610 |
| 38-26 | 965 | 660 | 610 |
| 38-28 | 965 | 711 | 610 |
| 38-30 | 965 | 762 | 610 |
| 38-32 | 965 | 813 | 610 |
| 38-34 | 965 | 864 | 610 |
| 38-36 | 965 | 914 | 610 |
| 40-30 | 1016 | 762 | 610 |
| 40-32 | 1016 | 813 | 610 |
| 40-34 | 1016 | 864 | 610 |
| 40-36 | 1016 | 914 | 610 |
| 40-38 | 1016 | 965 | 610 |
Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.
ASTM A815 WP UNS S31803
4. A815 UNS S31803/1.4462 Chemical Composition
| Chemical Element | % Present |
|---|---|
| Carbon (C) | 0.0 – 0.03 |
| Chromium (Cr) | 21.00 – 23.00 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorous (P) | 0.0 – 0.03 |
| Sulphur (S) | 0.0 – 0.02 |
| Nickel (Ni) | 4.50 – 6.50 |
| Nitrogen (N) | 0.08 – 0.20 |
| Molybdenum (Mo) | 2.50 – 3.50 |
| Iron (Fe) | Balance |