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Ms.Suwen LimIt is really a pleasure cooperation. You are fast understanding and knowlegeable, also your Check valves worked well. We believe that we will have a great chance to cooperate more. -
Mr. Loredana DoganieriTks for your consisent support for more than 10 years. Your diligence, professional technical support and rich experience in the pipeline projects has biggly help the business between us. Together we will win more and more tenders in the future. Best Regards to you and your team, and finally Come on DEYE Piping team! -
Mr. Yasser NashwanYou are honnesty and very reliable parnter, tks for your support on the technical data sheets and addtional works to fast the delivery time. Your professional answers are always impressed. also Your products are beautiful. We apprecite all the offorts you have done for the years business. -
Mr. Waseem AkramYou are Excellent, especially the quanlity control step by step, We've got all the photos and videos we want. and the documents we received all meet the request. Our boss is very Satisfied and he said he will give you more orders. We like your professional and fast jobs. -
Mr. Gonzalo JaraThe mould you opened for the valve are good, the new types of butterfly valves is popular. It will biggly increase the business between us. Tks for your suggestions on the flange holes. The valves are in good finishing and well packaged when we received them. Thank you, my friend. -
Mr. ilya SabanskyThe end user is safisfied with your A234WPB fittings and A105 Flanges, the have finished the welding at present, all works well.Tks for your professional suggestions and the operation manual. We also won the 2nd Phase job, we have sent to you this morning, Pls confirm all the specifications to proceed.
Sch40 Seamless Mild Steel Eccentric Reducer B16.9 With Material A234WPB WPC WPL6
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xProduct Details
| Standard | ANSI B16.5 DIN2616 EN10253 JIS | Material | WPB WPC WP5 WP11 WPL6 Stainless Steel |
|---|---|---|---|
| Thickness | STD, SCH40, SCH80, SCH120, SCH160, XS, XXS, Customized | Connection | Plain Ends PE Or Bevel Ends BE |
| Size Range | 1/2"-48" 15mm-1200mm | Surface | Black Painting, Varnish Painting, FEB, 3PE |
| High Light | Sch40 mild steel reducer,mild steel reducer B16.9,SCH30 carbon steel reducer |
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Product Description
Sch40 Seamless Mild Steel Eccentric Reducer B16.9 with material A234WPB WPC WPL6
Product Description
ANSI B16.9 Concentric Reducers or Eccentric Reducers, a type of Pipe Reducer that fastens pipe sections on the same axis and is conical in shape. These Reducer pipe fittings have varying ends and can join unequal diameter pipes on different pipe sections falling on the same axis. Our Concentric Reducers Fittings are tested and certified for durability, quality and accuracy and play a key role in the conveyance of semi-liquid mixtures and abrasives in the liquid state. Our ANSI B16.9 Pipe Reducers are suitable for use in automobile industry and plumbing.
Product Information/Basis Information/Specification
| Product Name | ANSI B16.9 Eccentric Reducers or Concentric Reducers |
| Size | 1/2"-48" 15mm-1200mm |
| Wall Thickness | SCH10,SCH20,SCH30,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH140,SCH160,XXS, DIN, SGP JIS thickness |
| Material Grade | Carbon Steel : A234 WPB, WP5, WP6, WP9,WP11,WP12, WP22, A420WPL6, WPL8, WP91 |
| 12CrMo, 15Cr5Mo, 1Cr5Mo, 12Cr1MoV , WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70 | |
| ST37.0,ST35.8,ST37.2,ST35.4/8,ST42,ST45,ST52,ST52.4 | |
| STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49 | |
| Stainless Steel304, 304L, 304H. 316, 316L, 316H, 321, 347, 347H, Duplex SS 2507, DSS2205, UNS31803 UNS32750 1.4301,1.4306, 1.4401, 1.4435, 1.4406, 1.4404, 1.4462, 1.4410, 1.4501 | |
| Surface | Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering |
| Transport Package | Plastic film,wooden cases ,wooden pallet,or as per customers' requests |
Manufacturing Standards of Buttweld Pipe Reducers
| ASME: | ANSI B16.9, ANSI B16.28, MSS-SP-43 |
| DIN: | DIN2605, DIN2615, DIN2616, DIN2617, DIN28011 |
| EN: | EN10253-1, EN10253-2 |
Standard Specification:
| ASME B16.9 | Factory-Made Wrought Fittings Buttwelding |
| ASME B16.25 | Buttwelding Ends |
| ASME B16.28 | Wrought Steel Short Radius Elbows and Buttwelding Returns |
| MSS SP-43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
| ASTM A403 – ASME SA403 | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
Technology/ Technical Data Sheet
Thickness List for pipefittings ANSI B16.9
Unit: mm
| NPS | Outside Dimeter | Different thickness with tolerance of +-12.5% | |||||||||
| Sch20 | Sch30 | STD | Sch40 | Sch60 | XS | Sch80 | Schl20 | Sch160 | XXS | ||
| 1/8 | 10. 3 | —— | —— | 1. 73 | 1. 73 | —— | 2. 41 | 2. 41 | —— | —— | —— |
| 1/4 | 13. 7 | — | — | 2. 24 | 2. 24 | — | 3. 02 | 3. 02 | — | — | — |
| 3/8 | 17. 1 | — | — | 2. 31 | 2. 31 | — | 3. 20 | 3. 20 | — | — | — |
| 1/2 | 21. 3 | —— | —— | 2. 77 | 2. 77 | —— | 3. 73 | 3. 73 | —— | 4. 78 | 7. 47 |
| 3/4 | 26. 7 | —— | —— | 2. 87 | 2. 87 | —— | 3. 91 | 3. 91 | —— | 5. 56 | 7. 82 |
| 1 | 33.4 | — | — | 3. 38 | 3. 38 | — | 4. 55 | 4. 55 | — | 6. 35 | 9. 09 |
| 1 1/4 | 42. 2 | — | — | 3. 56 | 3. 56 | — | 4. 85 | 4. 85 | — | 6. 35 | 9. 70 |
| 1 1/2 | 48. 3 | —— | —— | 3. 68 | 3. 68 | —— | 5. 08 | 5. 08 | —— | 7. 14 | 10. 15 |
| 2 | 60. 3 | —— | —— | 3. 91 | 3. 91 | —— | 5. 54 | 5. 54 | —— | 8. 74 | 11. 07 |
| 2 1/2 | 73. 0 | — | — | 5. 16 | 5. 16 | — | 7. 01 | 7.01 | — | 9. 53 | 14. 02 |
| 3 | 88. 9 | — | — | 5. 49 | 5. 49 | — | 7. 62 | 7. 62 | — | 11. 13 | 15. 24 |
| 3 1/2 | 101. 6 | —— | —— | 5. 74 | 5. 74 | —— | 8. 08 | 8. 08 | —— | —— | —— |
| 4 | 114. 3 | —— | —— | 6.02 | 6. 02 | —— | 8. 56 | 8. 56 | 11. 13 | 13. 49 | 17. 12 |
| 5 | 141. 3 | — | — | 6. 55 | 6. 55 | — | 9. 53 | 9. 53 | 12. 70 | 15. 88 | 19. 05 |
| 6 | 168. 3 | — | — | 7. 11 | 7. 11 | — | 10. 97 | 10. 97 | 14. 27 | 18. 26 | 21.95 |
| 8 | 219. 1 | 6. 35 | 7. 04 | 8. 18 | 8. 18 | 10. 31 | 12. 70 | 12. 70 | 18. 26 | 23. 01 | 22.23 |
| 10 | 273. 1 | 6. 35 | 7. 80 | 9. 27 | 9.27 | 12. 70 | 12. 70 | 15. 09 | 21. 44 | 28. 58 | 25. 40 |
| 12 | 323.9 | 6. 35 | 8. 38 | 9. 53 | 10. 31 | 14. 27 | 12. 70 | 17. 48 | 25. 40 | 33. 32 | 25. 40 |
| 14 | 355. 6 | 7. 92 | 9. 53 | 9. 53 | 11. 13 | 15. 09 | 12. 70 | 19. 05 | 27. 79 | 35. 71 | — |
| 16 | 406. 4 | 7. 92 | 9. 53 | 9. 53 | 12. 70 | 16. 66 | 12. 70 | 21. 44 | 30. 96 | 40. 49 | —— |
| 18 | 457. 2 | 7. 92 | 11. 13 | 9. 53 | 14. 27 | 19. 05 | 12. 70 | 23. 83 | 34. 96 | 45. 24 | —— |
| 20 | 508. 0 | 9. 53 | 12. 70 | 9. 53 | 15. 09 | 20. 62 | 12. 70 | 26. 19 | 38. 10 | 50. 01 | — |
| 22 | 558. 8 | 9. 53 | 12. 70 | 9. 53 | — | 22. 23 | 12. 70 | 28. 58 | 41. 28 | 53. 98 | — |
| 24 | 609. 6 | 9. 53 | 14. 27 | 9. 53 | 17. 48 | 24. 61 | 12. 70 | 30. 96 | 46. 02 | 59. 54 | —— |
| 26 | 660.4 | 12. 70 | —— | 9. 53 | —— | —— | 12. 70 | —— | —— | —— | —— |
| 28 | 711.2 | 12. 70 | 15. 88 | 9. 53 | — | — | 12. 70 | — | — | — | — |
| 30 | 762. 0 | 12. 70 | 15. 88 | 9. 53 | — | — | 12. 70 | — | — | — | — |
| 32 | 812. 8 | 12. 70 | 15. 88 | 9. 53 | 17. 48 | —— | 12. 70 | —— | —— | —— | —— |
| 34 | 863. 6 | 12. 70 | 15. 88 | 9. 53 | 17. 48 | —— | 12. 70 | —— | —— | —— | —— |
| 36 | 914. 4 | 12. 70 | 15. 88 | 9. 53 | 17. 48 | — | 12. 70 | — | — | — | — |
| 38 | 965.2 | — | — | 9. 53 | — | — | 12. 70 | — | — | — | — |
| 40 | 1016. 0 | —— | —— | 9. 53 | —— | —— | 12. 70 | —— | —— | —— | —— |
| 42 | 1066. 8 | —— | —— | 9. 53 | —— | —— | 12. 70 | —— | —— | —— | —— |
| 44 | 1117. 6 | — | — | 9. 53 | — | — | 12. 70 | — | — | — | — |
| 46 | 1168.4 | — | — | 9. 53 | — | — | 12. 70 | — | — | — | — |
| 48 | 1219. 2 | — | — | 9. 53 | — | — | 12. 70 | — | — | — | — |
Dimensions of Reducers
| Nominal Pipe Size (NPS) | Outside Diameter at Bevel | End-to-End, H | Size | Outside Diameter at Bevel | End-to-End, | ||
| Large End | Small End | (NPS) | Large End | Small End | H | ||
| 3/4 x 1/2 | 26.7 | 21.3 | 38 | 5X4 | 141.3 | 114.3 | 127 |
| 3/4 x 3/8 | 26.7 | 17.3 | 38 | 5 x 3’/2 | 141.3 | 101.6 | 127 |
| 1 X 3/4 | 33.4 | 26.7 | 51 | 5X3 | 141.3 | 88.9 | 127 |
| 1 x 1/2 | 33.4 | 21.3 | 51 | 5 x 2’/2 | 141.3 | 73.0 | 127 |
| 1-1/4 X 1 | 42.2 | 33.4 | 51 | 5X2 | 141.3 | 60.3 | 127 |
| 1-1/4 X 3/4 | 42.2 | 26.7 | 51 | 6X5 | 168.3 | 141.3 | 140 |
| 1-1/4 x 1/2 | 42.2 | 21.3 | 51 | 6X4 | 168.3 | 114.3 | 140 |
| 1-1/2 x 1-1/4 | 48.3 | 42.2 | 64 | 6 x 31/, | 168.3 | 101.6 | 140 |
| 1-1/2 X 1 | 48.3 | 33.4 | 64 | 6x3 | 168.3 | 88.9 | 140 |
| 1-1/2X3/4 | 48.3 | 26.7 | 64 | 6 x 27 | 168.3 | 73.0 | 140 |
| 1-1/2X1/2 | 48.3 | 21.3 | 64 | 8x6 | 219.1 | 168.3 | 152 |
| 2 X 1-/2 | 60.3 | 48.3 | 76 | 8X5 | 219.1 | 141.3 | 152 |
| 2 X 1-1/4 | 60.3 | 42.2 | 76 | 8X4 | 219.1 | 114.3 | 152 |
| 2X1 | 60.3 | 33.4 | 76 | 8 x 3-1/2 | 219.1 | 101.6 | 152 |
| 2 X 3/4 | 60.3 | 26.7 | 76 | 10 X 8 | 273.0 | 219.1 | 178 |
| 2-1/2 X 2 | 73.0 | 60.3 | 89 | 10 x 6 | 273.0 | 168.3 | 178 |
| 2-1/2 x 1-1/2 | 73.0 | 48.3 | 89 | 10 x 5 | 273.0 | 141.3 | 178 |
| 2-1/2 X 1-1/4 | 73.0 | 42.2 | 89 | 10 x 4 | 273.0 | 114.3 | 178 |
| 2-1/2 X 1 | 73.0 | 33.4 | 89 | 12 x 10 | 323.8 | 273.0 | 203 |
| 3 X 2-1/2 | 88.9 | 73.0 | 89 | 12 x 8 | 323.8 | 219.1 | 203 |
| 3x2 | 88.9 | 60.3 | 89 | 12 x 6 | 323.8 | 168.3 | 203 |
| 3 x 1-1/2 | 88.9 | 48.3 | 89 | 12 x 5 | 323.8 | 141.3 | 203 |
| 3 x 1-1/4 | 88.9 | 42.2 | 89 | 14 x 12 | 355.6 | 323.8 | 330 |
| 3-1/2 x 3 | 101.6 | 88.9 | 102 | 14 X 10 | 355.6 | 273.0 | 330 |
| 3-1/2x 2-1/2 | 101.6 | 73.0 | 102 | 14 X 8 | 355.6 | 219.1 | 330 |
| 3-1/2 X 2 | 101.6 | 60.3 | 102 | 14 x 6 | 355.6 | 168.3 | 330 |
| 3-1/2 x 1-1/2 | 101.6 | 48.3 | 102 | 16 x 14 | 406.4 | 355.6 | 356 |
| 3-1/2x 1-1/4 | 101.6 | 42.2 | 102 | 16 x 12 | 406.4 | 323.8 | 356 |
| 4 x 3-1/2 | 114.3 | 101.6 | 102 | 16 x 10 | 406.4 | 273.0 | 356 |
| 4X3 | 114.3 | 88.9 | 102 | 16 x 8 | 406.4 | 219.1 | 356 |
| 4 X 2-1/2 | 114.3 | 73.0 | 102 | 18 x 16 | 457 | 406.4 | 381 |
| 4X2 | 114.3 | 60.3 | 102 | 18 x 14 | 457 | 355.6 | 381 |
| 4 x1-1/2 | 114.3 | 48.3 | 102 | 18 x 12 | 457 | 323.8 | 381 |
| 18 x 10 | 457 | 273.0 | 381 | ||||
| Nominal Pipe Size (NPS) | Outside Diameter at Bevel | End-to-End, H | Nominal Pipe Size (NPS) | Outside Diameter at Bevel | End-to-End, H | ||
| Large End | Small End | Large End | Small End | ||||
| 20 X 18 | 508 | 457.0 | 508 | 36 x 34 | 914 | 864 | 610 |
| 20 X 16 | 508 | 406.4 | 508 | 36 x 32 | 914 | 813 | 610 |
| 20 x 14 | 508 | 355.6 | 508 | 36 x 30 | 914 | 762 | 610 |
| 20 x 12 | 508 | 323.8 | 508 | 36 x 26 | 914 | 660 | 610 |
| 36 x 24 | 914 | 610 | 610 | ||||
| 22 X 20 | 559 | 508.0 | 508 | ||||
| 22 X 18 | 559 | 457.0 | 508 | 38 x 36 | 965 | 914 | 610 |
| 22 x 16 | 559 | 406.4 | 508 | 38 x 34 | 965 | 864 | 610 |
| 22 X 14 | 559 | 355.4 | 508 | 38 X 32 | 965 | 813 | 610 |
| 38 x 30 | 965 | 762 | 610 | ||||
| 38 X 28 | 965 | 711 | 610 | ||||
| 24 X 22 | 610 | 559.0 | 508 | 38 x 26 | 965 | 660 | 610 |
| 24 X 20 | 610 | 508.0 | 508 | ||||
| 24 x 18 | 610 | 457.0 | 508 | 40 x 38 | 1 016 | 965 | 610 |
| 24 X 16 | 610 | 406.4 | 508 | 40 x 36 | 1 016 | 914 | 610 |
| 40 X 34 | 1 016 | 864 | 610 | ||||
| 26 x 24 | 660 | 610.0 | 610 | 40 X 32 | 1 016 | 813 | 610 |
| 26 X 22 | 660 | 559.0 | 610 | 40 x 30 | 1 016 | 762 | 610 |
| 26 X 20 | 660 | 508.0 | 610 | ||||
| 26 X 18 | 660 | 457.0 | 610 | 42 X 40 | 1 067 | 1 016 | 610 |
| 42 X 38 | 1 067 | 965 | 610 | ||||
| 28 X 26 | 711 | 660.0 | 610 | 42 x 36 | 1 067 | 914 | 610 |
| 28 X 24 | 711 | 610.0 | 610 | 42 X 34 | 1 067 | 864 | 610 |
| 28 x 20 | 711 | 508.0 | 610 | 42 X 32 | 1 067 | 813 | 610 |
| 28 X 18 | 711 | 457.0 | 610 | 42 X 30 | 1 067 | 762 | 610 |
| 30 X 28 | 762 | 711.0 | 610 | 44 X 42 | 1 118 | 1 067 | 610 |
| 30 X 26 | 762 | 660.0 | 610 | 44 X 40 | 1 118 | 1 016 | 610 |
| 30 X 24 | 762 | 610.0 | 610 | 44 X 38 | 1 118 | 965 | 610 |
| 30 X 20 | 762 | 508.0 | 610 | 44 X 36 | 1 118 | 914 | 610 |
| 32 X 30 | 813 | 762.0 | 610 | 46 X 44 | 1 168 | 1 118 | 711 |
| 32 X 28 | 813 | 711.0 | 610 | 46 X 42 | 1 168 | 1 067 | 711 |
| 32 x 26 | 813 | 660.0 | 610 | 46 x 40 | 1 168 | 1 016 | 711 |
| 32 x 24 | 813 | 610.0 | 610 | 46 x 38 | 1 168 | 965 | 711 |
| 34 x 32 | 864 | 813.0 | 610 | 48 x 46 | 1 219 | 1 168 | 711 |
| 34 X 30 | 864 | 762.0 | 610 | 48 X 44 | 1 219 | 1 118 | 711 |
| 34 x 26 | 864 | 660.0 | 610 | 48 x 42 | 1 219 | 1 067 | 711 |
| 34 x 24 | 864 | 610.0 | 610 | 48 x 40 | 1 219 | 1 016 | 711 |
Application/Usage
Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical industry,
electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industries, etc.
Material Specification
Designation: A 234/A 234M – 05 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for
Moderate and High Temperature Service
This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered
by the latest revision of ASME B16.9, B16.11, MSS SP-79, and MSS SP-95. These fittings are for use in pressure piping
and in pressure vessel fabrication for service at moderate and elevated temperatures. Fittings differing from these ASME and
MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A 960.
Chemical Requirements (Composition, %)
| Grade and Material | C | Mn | P | S | Silicon | Chromium | Molybdenum | Nickel | Copper |
| WPBB,C,D,E,F 0.30 max | 0.29–1.06 | 0.05 | 0.058 | 0.10 min | 0.40 max | 0.15 max | 0.40 max | 0.40 max | |
| WPCC,D,E,F 0.35 max | 0.29–1.06 | 0.05 | 0.058 | 0.10 min | 0.40 max | 0.15 max | 0.40 max | 0.40 max | |
| WP1 | 0.28 max | 0.30–0.90 | 0.045 | 0.045 | 0.10–0.50 | . . . | 0.44–0.65 . . . . . . | ||
| WP12 CL1, | 0.05–0.20 | 0.30–0.80 | 0.045 | 0.045 | 0.60 max | 0.80–1.25 | 0.44–0.65 . . . . . . | ||
| WP12 CL2 | |||||||||
| WP11 CL1 | 0.05–0.15 | 0.30–0.60 | 0.03 | 0.03 | 0.50–1.00 | 1.00–1.50 | 0.44–0.65 . . . . . . | ||
| WP11 CL2, | 0.05–0.20 | 0.30–0.80 | 0.04 | 0.04 | 0.50–1.00 | 1.00–1.50 | 0.44–0.65 . . . . . . | ||
| WP11 CL3 | |||||||||
| WP22 CL1, | 0.05–0.15 | 0.30–0.60 | 0.04 | 0.04 | 0.50 max | 1.90–2.60 | 0.87–1.13 . . . . . . | ||
| WP22 CL3 | |||||||||
| WP5 CL1, | 0.15 max | 0.30–0.60 | 0.04 | 0.03 | 0.50 max | 4.0–6.0 | 0.44–0.65 . . . . . . | ||
| WP5 CL3 | |||||||||
| WP9 CL1, | 0.15 max | 0.30–0.60 | 0.03 | 0.03 | 1.00 max | 8.0–10.0 | 0.90–1.10 . . . . . . | ||
| WP9 CL3 WPR | |||||||||
| 0.20 max | 0.40–1.06 | 0.045 | 0.05 | . . . | . . . | . . . | 1.60–2.24 | 0.75–1.25 | |
| WP91 | 0.08–0.12 | 0.30–0.60 | 0.02 | 0.01 | 0.20–0.50 | 8.0–9.5 | 0.85–1.05 | 0.40 max | . . . |
| WP911 | 0.09–0.13 | 0.30–0.60 | 0.02 | 0.01 | 0.10–0.50 | 8.5–9.5 | 0.90–1.10 | 0.40 max |
. .
|
Mechanical Performance Requirements
| WPC, | WP11 CL1, | WP11 CL3, | |||||||
| Grade and Marking Symbol | WPB | WP11 CL2, | WP1 | WP22 CL1, | WPR | WP22 CL3 | WP91 | WP911 | WP12 CL1 |
| WP12 CL2 | WP5 CL1 | WP5 CL3 | |||||||
| WP9 CL1 | WP9 CL3 | ||||||||
| Tensile strength, range ksi [MPa] | 60–85 | 70–95 | 55–80 | 60–85 | 63–88 | 75–100 | 85–110 | 90–120 | 60–85 |
| [415–585] | [485–655] | [380–550] | [415–585] | [435–605] | [520–690] | [585–760] | [620–840] | [415–585] | |
| Yield strength, min, ksi [MPa] | 35 [240] | 40 [275] | 30 [205] | 30 [205] | 46 [315] | 45 [310] | 60 [415] | 64 [440] | 32 [220] |
|
(0.2 % offset or 0.5 % extension-under-load) |
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Production Process
Reference Standards
ASME B16.9 Specification for Butt Welded Fittings
ASME B16.9 specification is designed for butt welded fittings applied in industrial construction pipelines. Including elbow,
tee, cross, cap, reducer, and etc.
Standard Scope
The standard includes specifications of NPS 1/2 to NPS 48 (DN15-DN1200) factory-made wrought butt-welded pipe fittings
overall dimensions, tolerances ratings, test methods and markings.
Special Fittings
Special fittings here refer to special sizes, forms and tolerances that agreed between buyer and manufacturer.
Fabricated Fittings
Fabricated laterals and other fittings by circumferential or intersection welds are considered pipe fabrication
could not apply this standard.
Units under ASME B16.9 shall be stated in both SI (Metric) and U.S. Customary units. Designation for size is NPS.
Reference Standards
It is not considered practical to identify the specific edition of each standard and specification in the individual references.A product made comply with a prior edition of referenced standards and in all other respects conforming to this standardwill be considered complied.
ASME B16.5: Pipe Flanges and Flanged Fittings: NPS 1∕2 Through NPS 24 Metric/Inch Standard
ASME B16.25: For Buttwelding Ends
ASME B31: Code for Pressure Piping
ASME B31.3: Process Piping
ASME B36.10M, Welded and Seamless Wrought Steel Pipe
ASME B36.19M, Stainless Steel Pipe
ASME Boiler and Pressure Vessel Code
ASTM A234/A234M-17, Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for
Moderate and High Temperature Service
ASTM A403/A403M-16, Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASTM A420/A420M-16, Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for
LowTemperature Service
ASTM A815/A815M-14e1, Specification for Wrought Ferritic, Ferritic/Austenitic and Martensitic Stainless Steel Piping Fittings
ASTM A960/A960M-16a, Specification for Common Requirements for Wrought Steel Piping Fittings
ASTM E29-13, Practice for Using Significant Digits in Test Data to Determine Conformance With Specifications
ASTM B361-16, ASTM B363-14, ASTM B366/B366M-17: For other material metals. (Aluminum, Titanium, Nickel, and alloy).
FAQ/ Customer Question and Answers
Q: Customer asked for butt weld fittings in A105:
A: Most common carbon steel buttweld fitting material is A234WPB. It is equivalent to A105 flanges,
however there is no such thing as an A105 or A106 butt weld fitting A106 Gr.B is for pipe grade.
The A234WPB fittings are made from A106GR.B pipes. A105 is a material from Bar forged to
be High pressure Fittings or Flange
Q: Customer requests “Normalized” butt weld fittings:
A: This is also a misconception since flanges are available in A105 and A105 N, where N stands for normalized.
However, there is no such thing as A234WPBN. Manufactures normalize their butt weld fittings was considered
that normalized heat treating process was done, Especially for the elbows and Tees Customer needing
“normalized” butt weld fittings should request WPL6 fittings which are high yield and are normalized as a standard procedure.
Q: Customer forgets to mention pipe schedule:
A: Buttweld fittings are sold as per pipe size but pipe schedule must be specified to match the ID of the fitting to
the ID of the pipe. If no schedule is mentioned, we will assume a standard wall is requested.
Q; Customer forgets to mention welded or seamless butt weld fitting:
A: Butt weld fittings are available in both welded and seamless configuration. A seamless butt weld carbon steel
or stainless-steel fitting is made of seamless pipe and is generally more expensive. Seamless pipe fittings are
NOT common in sizes bigger than 12”. Welded pipe fittings are made of ERW welded carbon steel or
stainless-steel pipe. They are available in sizes ½” to 72” and are more affordable than seamless fittings.
Q: What does Short Radius (SR) or Long Radius (LR) means?
A: You will often hear SR45 elbow or LR45 elbow. The 45 or 90 refers to the angle of the bend for buttweld fitting
to change the direction of flow.A long radius elbow (LR 90 Elbow or LR 45 elbow) will have a pipe bend that
will be 1.5 times the size of the pipe. So, a 6 inch LR 90 has bending radius that is 1.5 x nominal pipe size.
A short radius elbow (SR45 or SR90) has a pipe bend that is equal to the size of the fitting, so a 6” SR 45
has a bending radius that is 6” nominal pipe size.
Q: What is a 3R or 3D elbow pipe fitting?
A: First, the terms 3R or 3D are used synonymously. A 3R butt weld elbow has a bending radius that is
3 times the nominal pipe size. A 3R elbow is equal to 3D Elbows
Deye Piping Company Service
1. Technical support
2. Raw Material Quality control.
3. Inspection during the production time.
4. Final Test includes Surface, Dimension, PT Test, RT test, ultrasonic Test
5. Test Report each shipment
4. Flexible Delivery terms. EXW FOB CIF CFR DDP DDU
5. Flexible payment Ways: LC. TT. DP
6. Customized Package includes Logo. Cases Dimension.
7. 18 months quality Guarantee time.
9. Free replacement by air if any error founded
10. 24 hours to Feedback your questions
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