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[China]
Trade Verify
Address: No. 368 Youyi St. Shijiazhuang, Hebei, China
Contact name:Maria Lee
SHIJIAZHUANG DEYE PIPING INDUSTRY CO., LTD（Pipefittings Department) |
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Verified Suppliers
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Buttweld fittings are pipe fittings used to change the pathway of a
pipeline (elbows), reduce/increase the pipe bore size (reducers),
branch (tees, cross) or blind a pipeline (butt weld
cap); Buttweld fittings are available in multiple shapes
(elbows, tees, reducers, crosses, caps, stub ends), material grades
(carbon, high-yield carbon, low-alloy, stainless, duplex, and
nickel alloys),
and dimensions (2 to 24 inches in seamless or welded, 26"-72" in
welded ).
| Products Name | ANSI B16.9 BW SS Smsl seamless and welded Pipe Fitting |
| Types | Short Raduis Elbow,Long Raduis Elbows, 180deg bends, Returns, Reducing Eblows, traight Tee, Equal Tee, Concentric. Reducers, Eccentric. redcuers, Y tees, caps, Stub Ends, |
| Size | 1/2"-72" DN15-DN1800 |
| Wall Thickness | SCH5S,SCH10s,SCH20S,SCH30,STD,SCH40S,SCH60,XS,SCH80S,SCH100, SCH120,SCH160S,XXS, DIN, SGP JIS thickness |
| Design Standard | ASTMA312, ASTM A403WP, A234WPB A420, ANSI B16.9/B16.28/B16.25 |
| JIS B2311-1997/2312, JIS B2311/B2312, DIN 2605-1/2617/2615, | |
| GB 12459-99,EN Standard etc. | |
| Material List | Stainless Steel304, 304L, 304H, 316, 316L, 316H, 310, SS321, SS321H, 347, 347H, 904L |
| Duplex SS 2507, DSS2205, UNS31803 UNS32750, UNS32760 | |
| 1.4301,1.4306, 1.4401, 1.4435, 1.4406, 1.4404, 1.4462, 1.4410, 1.4501 | |
| Carbon Steel A234 WPB, WP5, WP9,WP11, WP22, A420WPL6, A420WPL8 | |
| ST37.0,ST35.8,ST37.2,ST35.4/8,ST42,ST45,ST52,ST52.4 | |
| STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49 | |
| Surface | Acid pickling, Polished |
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 industry,etc. |
Thickness List as per ANSI B16.9, MSS SP- 44
| Norminal Pipe Size DN (in) | Outside Dimeter D | Norminal Wall Thickness (MM) | |||||||||
| Sch5s | Sch10S | Sch10 | Sch40s | Sch40 | Sch80s | Sch80 | Schl20 | Sch160 | XXS | ||
| 1/8 | 10. 3 | —— | 1. 24 | —— | 1. 73 | 1. 73 | 2. 41 | 2. 41 | —— | —— | —— |
| 1/4 | 13. 7 | — | 1. 65 | — | 2. 24 | 2. 24 | 3. 02 | 3. 02 | — | — | — |
| 3/8 | 17. 1 | — | 1. 65 | — | 2. 31 | 2. 31 | 3. 20 | 3. 20 | — | — | — |
| 1/2 | 21. 3 | 1.65 | 2. 11 | —— | 2. 77 | 2. 77 | 3. 73 | 3. 73 | —— | 4. 78 | 7. 47 |
| 3/4 | 26. 7 | 1.65 | 2. 11 | —— | 2. 87 | 2. 87 | 3. 91 | 3. 91 | —— | 5. 56 | 7. 82 |
| 1 | 33.4 | 1. 65 | 2. 77 | — | 3. 38 | 3. 38 | 4. 55 | 4. 55 | — | 6. 35 | 9. 09 |
| 1 1/4 | 42. 2 | 1.65 | 2. 77 | — | 3. 56 | 3. 56 | 4. 85 | 4. 85 | — | 6. 35 | 9. 70 |
| 1 1/2 | 48. 3 | 1.65 | 2. 77 | —— | 3. 68 | 3. 68 | 5. 08 | 5. 08 | —— | 7. 14 | 10. 15 |
| 2 | 60. 3 | 1. 65 | 2. 77 | —— | 3. 91 | 3. 91 | 5. 54 | 5. 54 | —— | 8. 74 | 11. 07 |
| 2 1/2 | 73. 0 | 2. 11 | 3. 05 | — | 5. 16 | 5. 16 | 7. 01 | 7.01 | — | 9. 53 | 14. 02 |
| 3 | 88. 9 | 2. 11 | 3. 05 | — | 5. 49 | 5. 49 | 7. 62 | 7. 62 | — | 11. 13 | 15. 24 |
| 3 1/2 | 101. 6 | 2. 11 | 3. 05 | —— | 5. 74 | 5. 74 | 8. 08 | 8. 08 | —— | —— | —— |
| 4 | 114. 3 | 2. 11 | 3. 05 | —— | 6. 02 | 6. 02 | 8. 56 | 8. 56 | 11. 13 | 13. 49 | 17. 12 |
| 5 | 141. 3 | 2. 77 | 3. 40 | — | 6. 55 | 6. 55 | 9. 53 | 9. 53 | 12. 70 | 15. 88 | 19. 05 |
| 6 | 168. 3 | 2. 77 | 3. 40 | — | 7. 11 | 7. 11 | 10. 97 | 10. 97 | 14. 27 | 18. 26 | 21.95 |
| 8 | 219. 1 | 2. 77 | 3. 76 | —— | 8. 18 | 8. 18 | 12. 70 | 12. 70 | 18. 26 | 23. 01 | 22.23 |
| 10 | 273. 1 | 3. 40 | 4. 19 | —— | 9. 27 | 9.27 | 12. 70 | 15. 09 | 21. 44 | 28. 58 | 25. 40 |
| 12 | 323.9 | 3. 96 | 4. 57 | — | 9. 53 | 10. 31 | 12. 70 | 17. 48 | 25. 40 | 33. 32 | 25. 40 |
| 14 | 355. 6 | 3. 96 | 4. 78 | 6. 35 | — | 11. 13 | — | 19. 05 | 27. 79 | 35. 71 | — |
| 16 | 406. 4 | 4. 19 | 4. 78 | 6. 35 | —— | 12. 70 | —— | 21. 44 | 30. 96 | 40. 49 | —— |
| 18 | 457. 2 | 4. 19 | 4. 78 | 6. 35 | —— | 14. 27 | —— | 23. 83 | 34. 96 | 45. 24 | —— |
| 20 | 508. 0 | 4. 78 | 5. 54 | 6. 35 | — | 15. 09 | — | 26. 19 | 38. 10 | 50. 01 | — |
| 22 | 558. 8 | 4. 78 | 5. 54 | 6. 35 | — | — | — | 28. 58 | 41. 28 | 53. 98 | — |
| 24 | 609. 6 | 5. 54 | 6. 35 | 6. 35 | —— | 17. 48 | —— | 30. 96 | 46. 02 | 59. 54 | —— |
| 26 | 660.4 | —— | —— | 7. 92 | —— | —— | —— | —— | —— | —— | —— |
| 28 | 711.2 | — | — | 7. 92 | — | — | — | — | — | — | — |
| 30 | 762. 0 | 6. 35 | 7. 92 | 7. 92 | — | — | — | — | — | — | — |
| 32 | 812. 8 | —— | —— | 7. 92 | —— | 17. 48 | —— | —— | —— | —— | —— |
| 34 | 863. 6 | —— | —— | 7. 92 | —— | 17. 48 | —— | —— | —— | —— | —— |
| 36 | 914. 4 | — | — | 7. 92 | — | 17. 48 | — | — | — | — | — |
| 38 | 965.2 | — | — | — | — | — | — | — | — | — | — |
| 40 | 1016. 0 | —— | —— | —— | —— | —— | —— | —— | —— | —— | —— |
| 42 | 1066. 8 | —— | —— | —— | —— | —— | —— | —— | —— | —— | —— |
| 44 | 1117. 6 | — | — | — | — | — | — | — | — | — | — |
| 46 | 1168.4 | — | — | — | — | — | — | — | — | — | — |
| 48 | 1219. 2 | — | — | — | — | — | — | — | — | — | — |
Dimensions of Elbows
| Normial Pipe Size (NPS) | Outside Diameter at Bevel | 90-deg Elbows, A | 45-deg Elbows, B |
| 1/2 | 21.3 | 38 | 16 |
| 3/4 | 26.7 | 38 | 19 |
| 1 | 33.4 | 38 | 22 |
| 1 1/4 | 42.2 | 48 | 25 |
| 1 1/2 | 48.3 | 57 | 29 |
| 2 | 60.3 | 76 | 35 |
| 2 1/2 | 73.0 | 95 | 44 |
| 3 | 88.9 | 114 | 51 |
| 3 1/2 | 101.6 | 133 | 57 |
| 4 | 114.3 | 152 | 64 |
| 5 | 141.3 | 190 | 79 |
| 6 | 168.3 | 229 | 95 |
| 8 | 219.1 | 305 | 127 |
| 10 | 273.0 | 381 | 159 |
| 12 | 323.8 | 457 | 190 |
| 14 | 355.6 | 533 | 222 |
| 16 | 406.4 | 610 | 254 |
| 18 | 457.0 | 686 | 286 |
| 20 | 508.0 | 762 | 318 |
| 22 | 559.0 | 838 | 343 |
| 24 | 610.0 | 914 | 381 |
| 26 | 660.0 | 991 | 406 |
| 28 | 711.0 | 1 067 | 438 |
| 30 | 762.0 | 1 143 | 470 |
| 32 | 813.0 | 1 219 | 502 |
| 34 | 864.0 | 1 295 | 533 |
| 36 | 914.0 | 1 372 | 565 |
| 38 | 965.0 | 1 448 | 600 |
| 40 | 1 016.0 | 1 524 | 632 |
| 42 | 1 067.0 | 1 600 | 660 |
| 44 | 1 118.0 | 1 676 | 695 |
| 46 | 1 168.0 | 1 753 | 727 |
| 48 | 1 219.0 | 1 829 | 759 |
The most common used material for ss butt welded pipefittings is SS304/304L, SS316/316L, DUPLEX SAF2507, SAF2205,
Detail’s specification of the material as below.
Material Analysis
304/304L (UNS S30400/S30403)
Chemical Composition%
| C | Cr | Mn | Ni | P | S | Si |
| ≤ | -- | ≤ | -- | ≤ | ≤ | ≤ |
| 0.035 | 18.0-20.0 | 2.00 | 8.0-13.0 | 0.045 | 0.03 | 1.00 |
Tensile Strength: ≥ 485 Mpa (70KSI)
Yield Strength: ≥170Mpa (25KSPI)
Elongation ≥ 40%
316/316L (UNS S31600/S31603)
Chemical Composition%
| C | Cr | Mn | Mo | Ni | P | S | Si |
| ≤ | -- | ≤ | -- | ≤ | ≤ | ≤ | |
| 0.035 | 16.0-18.0 | 2.00 | 2.0-3.0 | 10.0-14.0 | 0.045 | 0.03 | 1.00 |
Tensile Strength: ≥ 485 Mpa (70KSI)
Yield Strength: ≥170Mpa (25KSPI)
Elongation ≥ 40%
SAF2205 (UNS31803)
| C≤ | Si ≤ | Mn≤ | P ≤ | S ≤ | Cr | Ni | Mo | Cu | N |
| 0.03 | 1.0 | 2.0 | 0.03 | 0.02 | 22-23 | 4.5-6.5 | 3.0-3.50 | / | 0.14-0.2
|
SAF2205 Material Mechnical Performance
| Test Items | Test Temp. | Performance | Standard Data |
| Tensile Strength | Room Temp. | Yield Strength s≥ | 450 Mpa |
| Tensile Strength h ≥ | 620 Mpa | ||
| Elongation % > | 25 | ||
| Reduction of Area=> | / | ||
| Impact Value KV(J) | Room Temp. | Lateral | / |
| Brinell hardness | Room Temp. | ≤ | 290 |
| Rockwell hardness | Room Temp. | ≥ | / |
Duplex SS SAF2507(UNS32750)
| c ≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr | Ni | Mo | Cu≤ | N |
| 0.03 | 0.8 | 1.2 | 0.03 | 0.015 | 24-26 | 6.0-8.0 | 3.0-5.0 | 0.5 | 0.24-0.32 |
Mechanical Peformance
| Test Items | Test Temp. | Performance | Standard Data | |
| Tensile | Room Temp. | Yield Strength | Ø≤55 Rm≥ | 550 Mpa |
| Ø >55 Rm≥ | 515 Mpa | |||
| Tensile Strength | Ø≤55 R0.002 ≥ | 800 Mpa | ||
| Ø >55 R0.002≥ | 760 Mpa | |||
| Elongation A%(4D) > | Ø≤55 ≥ | 15 | ||
| Ø >55 ≥ | 15 | |||
| Brinell hardness HB | Room Temp. | Ø≤5 ≤ | 310 | |
| Ø >55 ≤ | 310 | |||
Designation: A 403/A 403M – 06 Standard Specification for Wrought Austenitic Stainless-Steel Piping Fittings
Other Referenced Documents
ASTM Standards:
A 351/A 351M Specification for Castings, Austenitic, for Pressure-Containing Parts
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 480/A 480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A 743/A 743M Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
A 744/A 744M Specification for Castings, Iron-Chromium Nickel, Corrosion Resistant, for Severe Service
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A 960/A 960M Specification for Common Requirements for Wrought Steel Piping Fittings
E 112 Test Methods for Determining Average Grain Size
E 165 Test Method for Liquid Penetrant Examination
ASME Standards:
ASME B16.9 Factory-Made Wrought Steel Butt-Welding Fittings
ASME B16.11 Forged Steel Fittings, Socket-Welding and Threaded ends
MSS Standards: MSS SP-25 Standard Marking System for Valves, Fittings,
Flanges, and Unions
MSS SP-43 Standard Practice for Light Weight Stainless Steel Butt-Welding Fittings
MSS SP-79 Socket-Welding Reducer Inserts
Production Process
FAQ
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, Espeically 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:
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
Features /Characteristics
Elbows: Such pipe fittings are used to change the direction of the flow. Elbows They are majorly available in two standard types - 90 and 45 degree angles owing to their high demand in plumbing. The 90-degree elbow is primarily used to connect hoses to water pumps, valves, and deck drains, while the 45 degree elbow is mostly used in water supply facilities, electronic and chemical industrial pipeline networks, food, air-conditioning pipelines, garden production, agriculture, and solar-energy facility.
Our 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
