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
| Outside Diameter (OD) | Seamless 90° Long Radius Elbow (1/2″~24″), ERW / Fabricated Elbow / Welded (1/2″~48″) |
| 표준 | ANSI – B 16.9, ASTM A403 – ASME SA403 – ‘단조 오스테나이트계 스테인리스강 배관 피팅에 대한 표준 사양’, API 590-605, ASME B16.9 – ‘공장 제작 단조 맞대기 용접 피팅”, ASME B16.25 – ‘맞대기 용접 단부’, ASME B16.28 – ‘단조 강철 맞대기 용접 단반경 엘보 및 리턴’, MSS SP-43 – ‘저압, 내식성 용도를 위한 단조 및 제작형 맞대기 용접 피팅’ |
| 치수 | ASME/ANSI B16.9, MSS-SP-43 A형, MSS-SP-43 B형, JIS B2312, JIS B2313, ASME B16.28 |
| 일정 | 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS 등. |
| 굽힘 반경 | R=1D – 10D, 15D, 20D |
| 출처: | 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 |
| 자료 | 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, N08825 표면, 모넬, 니켈, 인코넬, 하스탈로이, 티타늄, 탄탈륨, 스테인리스강, 합금강, 탄소강, 구리-니켈 합금 90/10 및 70/30, 스테인리스강 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 |
| 유형 | Butt Weld (BW) / Welded / ERW / Fabricated |
| SS Melting Points | 1400-1450°C (WP304, WP304L), 1390-1440 °C (WP316L), 1370 – 1400 °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 번호 S31803, S32205. UNS S32750, S32950. Werkstoff 번호 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 및 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 등급 WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91 |
| Nickel Alloy Buttweld 90 Degree Long Radius Elbow | ASTM B336, ASME SB336, 니켈 200 (UNS 번호 N02200), 니켈 201 (UNS 번호 N02201), 모넬 400 (UNS 번호 N04400), 모넬 500 (UNS 번호 N05500), 인코넬 800 (UNS 번호 N08800), 인코넬 825 (UNS 번호 N08825), 인코넬 600 (UNS 번호 N06600), 인코넬 625 (UNS 번호 N06625), 인코넬 601 (UNS 번호 N06601), 하스텔로이 C 276(UNS 번호 N10276), 알로이 20(UNS 번호 N08020), 티타늄(I급 및 II급), 구리-니켈 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe. |
Buttweld 90 Deg Long Radius Elbows Application Industries
- Petrochemical Industry
- Chemical Industry
- 석유 및 가스 산업
- Pulp & Paper Indusry
- Power Plant Industry
- Food Processing Industry
- Pharmaceuticals Industry
- Energy Industry
- Aerospace Industry
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 | ||||||
| 인치 | 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 | |||
| 공칭 파이프 크기(NPS) | 벽 두께 t / t1 | Outside Ø Bevel에서 | Inside Ø 끝에서 | Center to End Dim. A-B-C-M |
| 1/2, 2 1/2 | 아니다 | 1 | 0,8 | 2 |
| 3에서 3½ | less than | 1 | 1,6 | 2 |
| 4 | +2 -1 | 1,6 | 2 | |
| 5와 6 | 87,50% | +3 -1 | 1,6 | 2 |
| 8 | 명목상의 | 2 | 1,6 | 2 |
| 10 | thickness | +4 -3 | 3,2 | 2 |
| 12에서 18까지 | 3,2 | +4 -3 | 3 | |
| 20부터 24까지 | 4,8 | +6 -5 | 3 | |
| 26~30 | 4,8 | +7 -5 | 3 | |
| 32에서 48까지 | 4,8 | +7 -5 | 5 | |
ASME B16.9 90° Long Radius Elbow Angularity Tolerance
| ND | 최대 이탈 각도 | 맥스, 비행기에서 내림 |
| Q | P | |
| 1/2의 4 | 1 | 2 |
| 5에서 8까지 | 2 | 4 |
| 10에서 12 | 3 | 5 |
| 14~16 | 3 | 7 |
| 18~24 | 4 | 10 |
| 26~30 | 5 | 10 |
| 32~42 | 5 | 13 |
| 44~48 | 5 | 20 |
WEIGHT CHART OF 90 DEGREE LONG RADIUS ELBOW
| NPS 인치 | ELBOWS LR 90° | |||
| Sch. 5S | Sch. 10S | Sch. 40S | Sch. 80S | |
| 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 |
| Approximate weights in kg, density 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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