Henan Sheng He Pipe Industry Co., Ltd., have an experience spanning for over ten years, producing and supplying best-in-class products, minimize cost by getting manufacturing processes under one roof and delivering consignments on a daily basis only because of a diligent and dedicated team. We are manufacturers, suppliers and exporters of 30°, 45°, 90°, 180° Butt Weld Elbows.
Butt Weld pipe fittings production process
Buttweld Fittings manufacturing process includes a series of steps like Annealing, Straightening, Pickling & Passivation and Polishing.
Elbows 45° – 90° – 180° LR/SR
The function of a elbow is to change direction or flow in a piping system. By default, there are 5 opportunities, the 45°, 90° and 180° elbows, all three in the long radius version, and in addition the 90° and 180° elbows both in the short radius version.
45°-90° LR and 3D ASME B16.9
Dimensions
| NPS | O.D. D | 90° LR A | 45° LR B | 90° 3D A | 45° 3D B |
| 1/2 | 21.3 | 38 | 16 | ||
| 3/4 | 26.7 | 38 | 19 | 57 | 24 |
| 1 | 33.4 | 38 | 22 | 76 | 31 |
| 1.1/4 | 42.2 | 48 | 25 | 95 | 39 |
| 1.1/2 | 48.3 | 57 | 29 | 114 | 47 |
| 2 | 60.3 | 76 | 35 | 152 | 63 |
| 2.1/2 | 73 | 95 | 44 | 190 | 79 |
| 3 | 88.9 | 114 | 51 | 229 | 95 |
| 3.1/2 | 101.6 | 133 | 57 | 267 | 111 |
| 4 | 114.3 | 152 | 64 | 305 | 127 |
| 5 | 141.3 | 190 | 79 | 381 | 157 |
| 6 | 168.3 | 229 | 95 | 457 | 189 |
| 8 | 219.1 | 305 | 127 | 610 | 252 |
| 10 | 273 | 381 | 159 | 762 | 316 |
| 12 | 323.8 | 457 | 190 | 914 | 378 |
| 14 | 355.6 | 533 | 222 | 1067 | 441 |
| 16 | 406.4 | 610 | 254 | 1219 | 505 |
| 18 | 457 | 686 | 286 | 1372 | 568 |
| 20 | 508 | 762 | 318 | 1524 | 632 |
| 22 | 559 | 838 | 343 | 1676 | 694 |
| 24 | 610 | 914 | 381 | 1829 | 757 |
| 26 | 660 | 991 | 406 | 1981 | 821 |
| 28 | 711 | 1067 | 438 | 2134 | 883 |
| 30 | 762 | 1143 | 470 | 2286 | 946 |
| 32 | 813 | 1219 | 502 | 2438 | 1010 |
| 34 | 864 | 1295 | 533 | 2591 | 1073 |
| 36 | 914 | 1372 | 565 | 2743 | 1135 |
| 38 | 965 | 1448 | 600 | 2896 | 1200 |
| 40 | 1016 | 1524 | 632 | 3048 | 1264 |
| 42 | 1067 | 1600 | 660 | 3200 | 1326 |
| 44 | 1118 | 1676 | 695 | 3353 | 1389 |
| 46 | 1168 | 1753 | 727 | 3505 | 1453 |
| 48 | 1219 | 1829 | 759 | 3658 | 1516 |
Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer. A & B are Center to End dimensions
Dimensional Tolerances of Butt Weld Elbows
45° & 90° LR & 3D 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 | |
| Center to End LR (A/B) | 2 | 2 | 2 | 2 | |
| Center to End 3D (A/B) | 3 | 3 | 3 | 3 | |
| 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 | |
| Center to End LR (A/B) | 2 | 2 | 3 | 5 | |
| Center to End 3D (A/B) | 3 | 3 | 6 | 6 | |
| 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.
Steel Elbows Manufacturing Standards
| ASME B16.9 | ASME B16.28 | ASME B16.49 | MSS SP43 | Mss SP75 |
Note..
MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.
Steel Elbows Material Grades
| Nickel Alloy | ASTM/ASME SB366 Alloy 200/UNS N02200, Alloy 800HT/Incoloy 800HT/UNS N08811, Alloy 400/Monel 400/UNS N04400, F904L/UNS N08904, Alloy 800/Incoloy 800/UNS N08800, Alloy C-2000/UNS N06200, Alloy 925/Incoloy 925/UNS N09925, Alloy C-22/UNS N06022, Alloy 201/UNS N02201, Alloy C-276/Hastelloy C-276/UNS N10276, Alloy 625/UNS N06625, Nimonic 80A/Nickel Alloy 80A/UNS N07080, Alloy K-500/Monel K-500, Alloy 20/UNS N08020, Alloy 800H/Incoloy 800H/UNS N08810,Alloy 600/Inconel 600/UNS N06600, Alloy 31/UNS N08031,Hastelloy C-276/UNS N10276, Alloy 825/Incoloy 825/UNS N08825,Alloy 20/N08020 |
| Duplex and Super Duplex Steel | ASTM/ASME SA 815 WPS31803, WPS32205, WPS32750, WPS32760, WPS32550 |
| Stainless Steel | ASTM/ASME SA403 WP 304, WP 304L, WP 304H, WP 304LN, WP 304N, ASTM/ASME A403 WP 316, WP 316L, WP 316H, WP 316LN, WP 316N, WP 316Ti, ASTM/ASME A403 WP 321, WP 321H ASTM/ASME A403 WP 347, WP 347H |