A815 WP S31803 Reducer,A815 WPS UNS 31803 Concentric Reducers, Eccentric Reducer
We are a Duplex stainless steel A815 UNS S31803 reducer,A815 WP S31803 duplex steel reducer, ASTM A815 WPS UNS S 32205 stainless steel reducer Pipe Fitting manufacturer，
ASTM A815 Duplex Steel UNS S31803 Reducer ANSI B16.9 Duplex UNS S32205 Reducer,
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
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 |
Dimensions Butt Weld Reducers Concentric and Eccentric 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.
DIMENSIONAL TOLERANCES OF CONCENTRIC AND ECCENTRIC REDUCERS ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameter at Bevel (D) |
+ 1.6 – 0.8 |
1.6 | 1.6 | + 2.4 – 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Overall Length (H) | 2 | 2 | 2 | 2 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameter at Bevel (D) |
+ 4 – 3.2 |
+ 6.4 – 4.8 |
+ 6.4 – 4.8 |
+ 6.4 – 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4 – 4.8 |
+ 6.4 – 4.8 |
| Overall Length (H) | 2 | 2 | 5 | 5 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.
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 |
ASTM A815 / A815M – 18
Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
This specification covers two general classes,
WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction. Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU.
The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. The steel shall be melted by electric furnace, vacuum furnace, or electric furnace followed by vacuum or electroslag-consumable remelting. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining or by combination of two or more of these operations. The materials shall undergo heat treatment and shall follow the required cooling process and tempering temperature. Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, silicon, sulfur, nickel, chromium, molybdenum, copper, nitrogen, and titanium. The mechanical properties of the fitting material shall conform to the required values in yield strength, tensile strength, elongation, and hardness.
Duplex stainless steel A815 UNS S31803 are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
Duplex stainless steels A815 UNS S31803 are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels.
Whilst duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316.
Please make sure you have clearly marked the size,material grade and quantity for example.
PIPE FITTINGS-ELB 90 LR BW 2 SCH 80S ASTM A815 WPS UNS S 32205 SMLS (PIPE FITTINGS) 3 Ea
CON RED BW 2INCH X 1 1/4 INCH SCH 80/80 UNS-S31803 SMLS 5 Ea
