Bend is a generic term for any offset or change of direction in the pipe fittings. Bends are generally manufactured as per the needs of the piping applications. These do not have sharp corners. Bending methods have constraint as to how much material thinning can be allowed to safely deal with the pressure of the fluid to be contained. Bends are used to bend the pipes as there is no welding required. There is less friction and the flow is smoother. It has a larger radius. Generally, the most basic difference is the radius of curvature. It has a radius of curvature more than twice the diameter.
These are formed while performing all standard manufacturing process to deliver products as per the industrial norms. It has higher resistance against mild corrosive media.
The industrial bend have good performance in the environments where pitting and crevice corrosion is a concern. It is made up of the high thermal stable material which allows using in the higher temperature applications even without deformation. Its design is leakage and joint free allows using in the higher pressure applications. It has a rugged construction, uniform design, sturdy finish, and more other features.
BUTT WELD BEND SPECIFICATION
| 사이즈 | 1/2” TO 36”, (Seamless up to 24”), (Welded 8” TO 36”) |
| 표준 | ANSI/ASME :ASTM A403 / ASME SA403, ANSI B16.9, ASME B16.25, ASME B16.28, MSS SP-43. DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011 EN : EN10253-1, EN10253-2N 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L,WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70. |
| 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: | Bend, Butt weld Bend, Fitting Bend |
| 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) |
Butt weld Bend Manufacturing Standards
| ASME 표준 | ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43 |
| DIN 표준 | DIN28011, DIN2617, DIN2616, DIN2615, DIN2605 |
| EN 표준 | EN10253-2, EN10253-1 |
| ASME B16.25 | 맞대기 용접 단부 |
| ASME B16.9 | 공장에서 제작된 단조 피팅의 맞대기 용접 |
| ASME B16.28 | Wrought Steel Bend and Buttwelding Returns |
| ASTM A403 – ASME SA403 | 오스테나이트계 가공 스테인리스강 배관 이음쇠에 대한 표준 사양 |
| MSS SP-43 | 저압 및 내식성 용도를 위한 단조 및 가공 맞대기 용접 피팅 |
Butt weld Bend Materials and Grades
| Stainless Steel Welded Pipe Bend | 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 Welded Pipe Bend | ASTM A 815, ASME SA 815, UNS 번호 S31803, S32205. UNS S32750, S32950. Werkstoff 번호 1.4462 |
| Carbon Steel Welded Pipe Bend | ASTM A234, ASME SA234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 및 WPHY 70. |
| Low Temperature Carbon Steel Welded Pipe Bend | ASTM A420 WPL3, A420 WPL6 |
| Alloy Steel Welded Pipe Bend | ASTM / ASME A/SA 234 등급 WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91 |
| Nickel Alloy Welded Pipe Bend | 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. |
ANSI B16.9 WELDED PIPE BEND APPLICATION INDUSTRIES
ASME/ANSI B16.9 Welded Bend are known to deliver exceptional performance and are generally developed for meeting the demands. We supply a wide range of Buttweld Welded Pipe Bends through a worldwide network of stock-keeping branches. These Welded Bends is uses in various industries According to needs. Most Common Indusctris are:
- Steel Pipe Welded Bend uses in Oil and Gas Pipeline
- Alloy Steel Welded Pipe Bend uses in Chemical Industry
- Butt weld Welded Pipe Bend uses in Plumbing
- Buttweld Welded Bends uses in Food Processing Industry
- Welded Bends uses in Structural Pipe
- ANSI B16.9 Buttweld Welded Bend uses in Power Plant
- Stainless Steel Buttweld Welded Bends uses in Paper & Pulp Industry
- ASME B16.28 Welded Bends uses in Heating
- Welded Bend uses in Water Supply Systems
- Butt weld Welded Bends uses in Fabrication Industry
- ASME B16.9 Welded Bend uses in General Purpose Applications
ASME B16.9 Butt weld Bend Dimensions
| Dimension: | ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313 |
| Available Radius | · 3D Bend · 5D Bend · 6D Bend · 8D Bend · 10D Bend · 20D Bend · Customized radius |
ASME B16.9 Buttweld Bend Weight Chart
| NPS 인치 | STUB ENDS | |||
| Sch. 5S | Sch. 10S | Sch. 40S | Sch. 80S | |
| 1/2 | 0.06 | 0.08 | 0.12 | 0.13 |
| 3/4 | 0.07 | 0.09 | 0.15 | 0.17 |
| 1 | 0.09 | 0.15 | 0.20 | 0.25 |
| 1 1/4 | 0.13 | 0.20 | 0.30 | 0.35 |
| 1 1/2 | 0.16 | 0.25 | 0.38 | 0.46 |
| 2 | 0.25 | 0.40 | 0.55 | 0.75 |
| 2 1/2 | 0.35 | 0.50 | 0.80 | 1.00 |
| 3 | 0.50 | 0.60 | 1.10 | 1.50 |
| 4 | 0.70 | 1.00 | 1.80 | 2.50 |
| 5 | 1.00 | 1.25 | 2.50 | 3.50 |
| 6 | 1.60 | 1.95 | 3.70 | 5.50 |
| 8 | 2.50 | 3.10 | 5.90 | 10.0 |
| 10 | 4.00 | 4.90 | 10.5 | 14.0 |
| 12 | 6.60 | 7.10 | 15.0 | 20.0 |
| 14 | 6.40 | 7.80 | 15.5 | 20.5 |
| 16 | 7.90 | 9.00 | 18.0 | 24.0 |
| 18 | 9.30 | 10.5 | 21.0 | 28.0 |
| 20 | 12.0 | 13.5 | 23.5 | 31.0 |
| 24 | 16.5 | 19.0 | 28.5 | 38.0 |
| Approximate weights in kg, density 8 kg/dm3 | ||||
ASME B16.9 SS Bend 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 |
AVAILABLE TYPES OF BUTTWELD WELDED PIPE BEND
| Super Duplex Steel Welded Pipe Bend | Copper Nickel Welded Pipe Bends |
| Stainless Steel Welded Pipe Bend | SS Welded Pipe Bends |
| ANSI B16.9 Welded Pipe Bend | ASME B16.28 Buttweld Welded Bend |
| 5D Welded Pipe Bends | 1D Welded Pipe Bends |
| Carbon Steel Welded Pipe Bends | High Quality Welded Pipe Bend |
| Titanium Welded Pipe Bend | Inconel Butt weld Welded Pipe Bend |
| ASTM A403 Stainless Steel Welded Pipe Bends | Duplex Steel Welded Pipe Bends |
| Buttweld Welded Pipe Bend | Butt Weld Welded Pipe Bends |
| High Nickel Alloy Welded Pipe Bend | Hastelloy Welded Pipe Bend |
| ASME B16.9 Welded Pipe Bend | 90 Degree Welded Pipe Bend |
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