Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Supply Ability | 10000000000pcs/month |
| Delivery Time | 5~50days |
| Packaging Details | plywood case,pallet,woven bag,carton,etc. as per your requirements. |
| Material | S31803 |
| Product Name | ASTM A815 S31803 Duplex Steel Concentric Reducer |
| Standard | ASTM A815 |
| Size | Seamless : 1/2″ – 10″, Welded : 1/2″ – 48″ |
| Type | Seamless / Welded / Fabricated |
| Application | oil gas chemical |
| Brand Name | HT |
| Model Number | ASTM A815 S31803 Duplex Steel Concentric Reducer |
| Certification | ISO TUV BV SGS,etc. |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union | Supply Ability | 10000000000pcs/month |
| Delivery Time | 5~50days | Packaging Details | plywood case,pallet,woven bag,carton,etc. as per your requirements. |
| Material | S31803 | Product Name | ASTM A815 S31803 Duplex Steel Concentric Reducer |
| Standard | ASTM A815 | Size | Seamless : 1/2″ – 10″, Welded : 1/2″ – 48″ |
| Type | Seamless / Welded / Fabricated | Application | oil gas chemical |
| Brand Name | HT | Model Number | ASTM A815 S31803 Duplex Steel Concentric Reducer |
| Certification | ISO TUV BV SGS,etc. | Place of Origin | China |
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 |
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1978
Total Annual:
10000000-20000000
Employee Number:
50~100
Ecer Certification：
Active Member
Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fitti... Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fitti...
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