An elbow is the pipe fittings that are used extensively as a form of connections in between two lengths of pipes for the purpose of producing the change into the flow direction into the pipe, at the angle of 180 deg, 90 deg or 45 deg. Elbow pipe fitting is also called as the bend that is available in the ranges of materials including alloy steel, carbon steel, stainless steel, nickel alloy, super duplex, duplex, and cupro-nickel, etc. 180° Long Radius Elbow is also termed as the return bend that permits the complete reversal of the flow. The distance in between the center line and end of the elbow is 3 x NPS.
Some qualities of it are High mechanical strength rugged construction, Smoothness in surface finishes, Perfect dimensional accuracy, Anti-corrosive body, and Pitting and oxidation resistance.
180 DEGREE LONG RADIUS ELBOW SPECIFICATIONS
| Outside Diameter (OD) | Seamless 180° Long Radius Elbow (1/2″~24″), ERW / Fabricated Elbow / Welded (1/2″~48″) |
| 표준 | 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’ |
| 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: | 180° Long Radius Elbow, Butt weld 180° Long Radius Elbow. |
| 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) |
180 DEGREE LONG RADIUS ELBOW – MATERIALS & GRADES
| Stainless Steel Buttweld 180 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 180 Degree Long Radius Elbow | ASTM A 815, ASME SA 815, UNS 번호 S31803, S32205. UNS S32750, S32950. Werkstoff 번호 1.4462 |
| Carbon Steel Buttweld 180 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 180 Degree Long Radius Elbow | ASTM A420 WPL3, A420 WPL6 |
| Alloy Steel Buttweld 180 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 180 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 180 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
DIMENSIONS OF 180 DEGREE LONG RADIUS ELBOW – ANSI 16.9

ASME B16.9 Buttweld 180° Short Radius Elbow Dimensions Drawing
| 명목 파이프 규격 | 외경 Bevel에서 | Center to Center | Back to Faces | ||||
| 180° Return | |||||||
| P | K | ||||||
| DN | INCH | 시리즈 A | B 시리즈 | LR | LR | ||
| 15 | 1/2 | 21.3 | 18 | 76 | 48 | ||
| 20 | /4 | 26.9 | 25 | 76 | 51 | ||
| 25 | 1 | 33.7 | 32 | 76 | 56 | ||
| 32 | 11/4 | 42.4 | 38 | 95 | 70 | ||
| 40 | 11/2 | 48.3 | 45 | 114 | 83 | ||
| 50 | 2 | 60.3 | 57 | 152 | 106 | ||
| 65 | 21/2 | 76.1(73) | 76 | 191 | 132 | ||
| 80 | 3 | 88.9 | 89 | 229 | 159 | ||
| 90 | 31/2 | 101.6 | – | 267 | 184 | ||
| 100 | 4 | 114.3 | 108 | 305 | 210 | ||
| 125 | 5 | 139.7 | 133 | 381 | 262 | ||
| 150 | 6 | 168.3 | 159 | 457 | 313 | ||
| 200 | 8 | 219.1 | 219 | 610 | 414 | ||
| 250 | 10 | 273.0 | 273 | 762 | 518 | ||
| 300 | 12 | 323.9 | 325 | 914 | 619 | ||
| 350 | 14 | 355.6 | 377 | 1067 | 711 | ||
| 400 | 16 | 406.4 | 426 | 1219 | 813 | ||
| 450 | 18 | 457.2 | 478 | 1372 | 914 | ||
| 500 | 20 | 508.0 | 529 | 1524 | 1016 | ||
| 550 | 22 | 559 | – | · 180 Degree Elbows – It is used when change in the direction of pipe required is 180° · L/R – Long radius | |||
| 600 | 24 | 610 | 630 | ||||
| 650 | 26 | 660 | – | ||||
| 700 | 28 | 711 | 720 | ||||
| 750 | 30 | 762 | – | ||||
| 800 | 32 | 813 | 820 | ||||
| 850 | 34 | 864 | – | ||||
| 900 | 36 | 914 | 920 | ||||
| 950 | 38 | 965 | – | ||||
| 1000 | 40 | 1016 | 1020 | ||||
| 1050 | 42 | 1067 | – | ||||
| 1100 | 44 | 1118 | 1120 | ||||
| 1150 | 46 | 1168 | – | ||||
| 1200 | 48 | 1220 | 1220 | ||||
DIMENSIONAL TOLERANCES OF 180 DEGREE LONG RADIUS ELBOW – ASME B16.9
| For all Pipe Fittings | 180° Returns | |||||
| 공칭 파이프 크기(NPS) | 벽 두께 t / t1 | Outside Ø Bevel에서 | Inside Ø 끝에서 | Back to Face Dim. K | Center to Center Dim. O | Align- ment of Ends U |
| 1/2, 2 1/2 | 아니다 | 1 | 0,8 | 7 | 7 | 1 |
| 3에서 3½ | 더 적게 | 1 | 1,6 | 7 | 7 | 1 |
| 4 | 보다 | +2 -1 | 1,6 | 7 | 7 | 1 |
| 5와 6 | 87,50% | +3 -1 | 1,6 | 7 | 7 | 1 |
| 8 | 명목상의 | 2 | 1,6 | 7 | 7 | 1 |
| 10 | thickness | +4 -3 | 3,2 | 7 | 7 | 2 |
| 12에서 18까지 | 3,2 | +4 -3 | 7 | 10 | 2 | |
| 20부터 24까지 | 4,8 | +6 -5 | 7 | 10 | 2 | |
| 26~30 | 4,8 | +7 -5 | ….. | ….. | ….. | |
| 32에서 48까지 | 4,8 | +7 -5 | ….. | ….. | ….. | |
ASME B16.9 180° 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 180° DEGREE LONG RADIUS ELBOW
| NPS 인치 | ELBOWS LR 180° | |||
| 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 180 DEGREE LONG RADIUS ELBOW
| Buttweld 180° Long Radius Elbow | Duplex Steel Buttweld 180° Long Radius Elbow |
| ASME B16.9 Butt weld 180° Long Radius Elbow | High Nickel Alloy 180° Long Radius Elbow |
| Stainless Steel 180° Long Radius Elbow | SS 180° Long Radius Elbow |
| High Quality 180° Long Radius Elbow | Seamless Butt weld 180° Long Radius Elbow |
| Welded Butt weld 180° Long Radius Elbowr | ASME B16.28 Buttweld 180° Long Radius Elbow |
| Carbon Steel 180° Long Radius Elbow | ANSI B16.9 Buttweld 180° Long Radius Elbow |
| Titanium Buttweld 180° Long Radius Elbow | Inconel Butt weld 180° Long Radius Elbow |
| ASTM A403 Stainless Steel 180° Long Radius Elbow | Butt Weld B16.9 180° Long Radius Elbow |
| Super Duplex Steel Buttweld 180° Long Radius Elbow | Copper Nickel 180° Long Radius Elbow |
| Steel 180° Long Radius Elbow | Hastelloy 180° Long Radius Elbow |
온주 카이신 카이신 금속 유한공사








