A buttweld 90 degree long radius elbow is a type of pipe fitting that is used to change the direction of flow in a pipeline by 90 degrees. The elbow has a longer radius than a standard 90 degree elbow, which helps to reduce friction and flow resistance in the pipeline. The fitting is typically made from steel or other alloys and is designed to be welded to the ends of two pipes. This creates a permanent and leak-free connection that is ideal for use in high-pressure applications. The buttweld 90 degree long radius elbow is commonly used in the oil and gas industry, as well as in power generation and other industrial applications.
Buttweld 90° Long Radius Elbow Pipe Fitting Specifications
| Diamètre extérieur (DE) | Seamless 90° Long Radius Elbow (1/2″~24″), ERW / Fabricated Elbow / Welded (1/2″~48″) |
| normes | ANSI – B 16.9, ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings’, API 590-605, ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings”, ASME B16.25 – ‘Buttwelding Ends’, ASME B16.28 – ‘Wrought Steel Buttwelding Short Radius Elbows and Returns’, MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications’ |
| Dimensions | ASME/ANSI B16.9, MSS-SP-43 type A, MSS-SP-43 type B, JIS B2312, JIS B2313, ASME B16.28 |
| Calendrier | Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS et etc. |
| Rayon de courbure | R = 1D – 10D, 15D, 20D |
| Depuis | 90° Long Radius Elbow, Butt weld 90° Long Radius Elbow. |
| Value Added Services | Hot Dipped Galvanizing, Electro Polish, Epoxy & FBE Coating, Sand Blasting, Soldering, Threading |
| Matériels | 304/L/H/LN, 316/L/H/LN/Ti, 321/H, 317/L/LN, 347/H, 310S/H, N08904 (904L), S31803, S32205, S32750, S32760, N02200, N02201, N04400, N06600, N06690, N06625, N06985(G3), N08028, N08800, N08810, N08811, N08825Surface, Monel, nickel, Inconel, Hastalloy, titane, tantale, acier inoxydable, acier allié, acier au carbone, cupronickel 90/10 et 70/30, Acier inoxydable ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404 |
| Type | Soudage bout à bout (BW) / Soudé / ERW / Fabriqué |
| Points de fusion des aciers spéciaux | 1 400-1 450 °C (WP304, WP304L), 1 390-1 440 °C (WP316L), 1 370 – 1 400 °C (WP316) |
90 DEGREE LONG RADIUS ELBOW – MATERIALS & GRADES
| Stainless Steel Buttweld 90 Degree Long Radius Elbow | ASTM A403 WP316/316L, ASTM A403 SA/A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404 |
| Duplex & Super Duplex Steel Buttweld 90 Degree Long Radius Elbow | ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950. Bureau d'usine n° 1.4462 |
| Carbon Steel Buttweld 90 Degree Long Radius Elbow | ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70. |
| Low Temperature Carbon Steel 90 Degree Long Radius Elbow | ASTM A420 WPL3, A420 WPL6 |
| Alloy Steel Buttweld 90 Degree Long Radius Elbow | ASTM/ASME A/SA 234 Gr. GT 1, GT 5, GT 9, GT 11, GT 12, GT 22, GT 91 |
| Nickel Alloy Buttweld 90 Degree Long Radius Elbow | ASTM B336, ASME SB336, Nickel 200 (UNS n° 2200), Nickel 201 (UNS n° N02201), Monel 400 (UNS n° N04400), Monel 500 (UNS n° N05500), Inconel 800 (UNS n° N08800), Inconel 825 (UNS n° N08825), Inconel 600 (UNS n° N06600), Inconel 625 (UNS n° N06625), Inconel 601 (UNS n° N06601), Hastelloy C 276 (UNS n° N10276), Alliage 20 (UNS n° N08020), Titane (Grade I et II), Cupro-nickel 70/30, CuNi10Fe1Mn CuNi30Mn1Fe. |
Buttweld 90 Deg Long Radius Elbows Application Industries
- Industrie pétrochimique
- Industrie chimique
- Secteur pétrolier et gazier
- Industrie de la pâte à papier et du papier
- Secteur des centrales électriques
- Industrie agroalimentaire
- Industrie pharmaceutique
- Secteur de l'énergie
- Industrie aérospatiale
ASME B16.9 Buttweld 90° Long Radius Elbow Dimensions

ASME B16.9 Buttweld 90° Long Radius Elbow Dimension Drawing
| LONG RADIUS ELBOWS (R = 1,5 ND) ANSI B 16.9 dimensions | ||||||
| pouces | ND | mm | Center to center | Radius | Center to end | Back to face |
| D | O | A | B | K | ||
| 1/2 | 15 | 21,34 | 76,20 | 38,10 | 15,87 | 47,62 |
| 3/4 | 20 | 26,67 | 57,15 | 28,57 | 11,11 | 42,86 |
| 1 | 25 | 33,40 | 76,20 | 38,10 | 22,22 | 55,56 |
| 1 1/4 | 32 | 42,16 | 95,25 | 47,60 | 25,40 | 69,85 |
| 1 1/2 | 40 | 48,26 | 114,30 | 57,15 | 28,57 | 82,55 |
| 2 | 50 | 60,32 | 152,40 | 76,20 | 34,92 | 106,40 |
| 2 1/2 | 65 | 73,02 | 190,50 | 95,25 | 44,45 | 131,80 |
| 3 | 80 | 88,90 | 228,60 | 114,30 | 50,80 | 158,75 |
| 3 1/2 | 90 | 101,60 | 266,70 | 133,35 | 57,15 | 184,15 |
| 4 | 100 | 114,30 | 304,80 | 152,40 | 63,50 | 209,55 |
| 5 | 125 | 141,30 | 381,00 | 190,50 | 79,38 | 261,90 |
| 6 | 150 | 168,27 | 457,20 | 228,60 | 95,25 | 312,70 |
| 8 | 200 | 219,07 | 609,60 | 304,80 | 127,00 | 414,30 |
| 10 | 250 | 273,05 | 762,00 | 381,00 | 158,75 | 517,50 |
| 12 | 300 | 323,85 | 914,40 | 457,20 | 190,50 | 619,10 |
| 14 | 350 | 355,60 | 1066,80 | 533,40 | 222,25 | 711,20 |
| 16 | 400 | 406,40 | 1219,20 | 609,60 | 254,00 | 812,80 |
| 18 | 450 | 457,20 | 1371,60 | 685,80 | 285,74 | 914,40 |
| 20 | 500 | 508,00 | 1524,00 | 762,00 | 317,50 | 1016,00 |
| 22 | 550 | 558,80 | 1676,40 | 838,20 | 342,90 | 1117,60 |
| 24 | 600 | 609,60 | 1828,80 | 914,40 | 381,00 | 1219,20 |
| 28 | 700 | 711,20 | 2133,60 | 1066,80 | 441,90 | 1422,40 |
| Dimensions in mm. | ||||||
90 Degree Long Radius Elbow Dimensions Tolerance
| for all Pipe fittings | Elbows 90 deg | |||
| Taille nominale du tuyau (NPS) | Épaisseur de la paroi t / t1 | Extérieur Ø à Bevel | À l'intérieur Ø à la fin | Dimension du centre à l'extrémité ABCM |
| 1/2 à 2 1/2 | Pas | 1 | 0,8 | 2 |
| 3 à 3 1/2 | less than | 1 | 1,6 | 2 |
| 4 | +2 -1 | 1,6 | 2 | |
| 5 à 6 | 87,50% | +3 -1 | 1,6 | 2 |
| 8 | de nominal | 2 | 1,6 | 2 |
| 10 | épaisseur | +4 -3 | 3,2 | 2 |
| 12 à 18 ans | 3,2 | +4 -3 | 3 | |
| 20 à 24 | 4,8 | +6 -5 | 3 | |
| 26 à 30 | 4,8 | +7 -5 | 3 | |
| 32 à 48 | 4,8 | +7 -5 | 5 | |
ASME B16.9 90° Long Radius Elbow Angularity Tolerance
| ND | Angle maximal | Max hors de l'avion |
| Q | P | |
| 1/2 à 4 | 1 | 2 |
| 5 à 8 | 2 | 4 |
| 10 à 12 | 3 | 5 |
| 14 à 16 ans | 3 | 7 |
| 18 à 24 ans | 4 | 10 |
| 26 à 30 | 5 | 10 |
| 32 à 42 | 5 | 13 |
| 44 à 48 | 5 | 20 |
WEIGHT CHART OF 90 DEGREE LONG RADIUS ELBOW
| NPS pouces | ELBOWS LR 90° | |||
| École. 5S | École. 10S | École. 40S | École. Années 80 | |
| 1/2 | 0.05 | 0.06 | 0.08 | 0.10 |
| 3/4 | 0.06 | 0.07 | 0.09 | 0.11 |
| 1 | 0.09 | 0.15 | 0.18 | 0.20 |
| 1 1/4 | 0.13 | 0.20 | 0.25 | 0.35 |
| 1 1/2 | 0.18 | 0.30 | 0.40 | 0.50 |
| 2 | 0.30 | 0.50 | 0.70 | 0.90 |
| 2 1/2 | 0.60 | 0.85 | 1.35 | 1.80 |
| 3 | 0.90 | 1.30 | 2.00 | 2.90 |
| 4 | 1.40 | 2.00 | 4.00 | 5.90 |
| 5 | 2.90 | 3.60 | 6.50 | 9.70 |
| 6 | 4.00 | 5.00 | 10.5 | 16.0 |
| 8 | 7.40 | 10.0 | 21.5 | 33.5 |
| 10 | 13.6 | 16.8 | 38.5 | 52.5 |
| 12 | 23.4 | 27.0 | 59.0 | 79.0 |
| 14 | 29.0 | 35.0 | 70.0 | 94.0 |
| 16 | 41.3 | 47.0 | 95.0 | 125 |
| 18 | 51.8 | 59.0 | 120 | 158 |
| 20 | 73.0 | 85.0 | 146 | 194 |
| 24 | 122 | 140 | 210 | 282 |
| Poids approximatifs en kg, densité 8 kg/dm³ | ||||
AVAILABLE TYPES OF 90 DEGREE LONG RADIUS ELBOW
| Buttweld 90° Long Radius Elbow | Duplex Steel Buttweld 90° Long Radius Elbow |
| ASME B16.9 Butt weld 90° Long Radius Elbow | High Nickel Alloy 90° Long Radius Elbow |
| Stainless Steel 90° Long Radius Elbow | SS 90° Long Radius Elbow |
| High Quality 90° Long Radius Elbow | Seamless Butt weld 90° Long Radius Elbow |
| Welded Butt weld 90° Long Radius Elbowr | ASME B16.28 Buttweld 90° Long Radius Elbow |
| Carbon Steel 90° Long Radius Elbow | ANSI B16.9 Buttweld 90° Long Radius Elbow |
| Titanium Buttweld 90° Long Radius Elbow | Inconel Butt weld 90° Long Radius Elbow |
| ASTM A403 Stainless Steel 90° Long Radius Elbow | Butt Weld B16.9 90° Long Radius Elbow |
| Super Duplex Steel Buttweld 90° Long Radius Elbow | Copper Nickel 90° Long Radius Elbow |
| Steel 90° Long Radius Elbow | Hastelloy 90° Long Radius Elbow |
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