Stainless Steel 90 Degree Elbow Supplier in China
Core Structural Designs
- Long Radius (LR) Elbow:
The center-to-face dimension equals 1.5 times the nominal pipe diameter.It is widely favored for standard piping systems because it ensures a more gradual bend,minimizes friction loss,and lowers system pressure drops. - Short Radius (SR) Elbow:
The center-to-face dimension is identical to the nominal pipe diameter.These “sharp turn” fittings are utilized when working within tight space constraints where a long radius cannot physically fit. - Reducing Elbow:
Features different inlet and outlet diameters to seamlessly transition the line to a smaller or larger pipe size while changing direction.
Specifications For A 90 Degree Elbow
| Колено из нержавеющей стали под углом 90 градусов | |||||
|---|---|---|---|---|---|
| Номинальный диаметр | OD at Bevel | Колено 90 ° | |||
| DN | НПС | Серия А | Серия B | LR | SR |
| 15 | 1/2 | 21.3 | 18 | 38 | – |
| 20 | 3/4 | 26.9 | 25 | 38 | – |
| 25 | 1 | 33.7 | 32 | 38 | 25 |
| 32 | 1.1/4 | 42.4 | 38 | 48 | 32 |
| 40 | 1.1/2 | 48.3 | 45 | 57 | 38 |
| 50 | 2 | 60.3 | 57 | 76 | 51 |
| 65 | 2.1/2 | 76.1(73) | 76 | 95 | 64 |
| 80 | 3 | 88.9 | 89 | 114 | 76 |
| 90 | 3.1/2 | 101.6 | - | 133 | 89 |
Connection Methods For A Stainless Steel 90 Degree Elbow
- Butt-Weld (BW):
The ends are chamfered so they can be welded directly to pipes.This creates a seamless,leak-proof,continuous metal structure designed for highly critical, high-pressure,or high-temperature pipelines. - Threaded (NPT or BSP):
Features internal female or external male threads.Commonly used in lower-pressure utility lines or plumbing setups where parts must be easily taken apart for maintenance. - Socket Weld (SW):
The pipe slips directly into a recessed area of the fitting before being sealed with a fillet weld.This design is optimized for smaller pipe diameters managing high structural loads.
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Материал
Нержавеющая сталь
AISI 304, 304L, 316, 316L, 316Ti, 317L, 321, 321H, 347, 347H, 904L, 254 SMO (W1.4301, 1.4306, 1.4948, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4878, 1.4550, 1.4845, 1.4539, 1.4547 и др.)
Дуплекс и супердуплекс
Дуплекс 2205 - S31803, S32205, супердуплекс 2507 - S32750, S32760 (w1.4462, 1.4410, 1.4501, 1.4507 и т.д.)
Сплав на основе никеля
Monel 400, Inconel 600, 625, Incoloy 800, 800H, 825, Alloy 20, Hastelloy B3, C22, C276, 254SMO, Cu/Ni 70/30, 90/10 и т.д.
Другой сплав
Медный сплав C71500, C70600 (CuNi 90/10, CuNi 70/30), титановый сплав, хромомолибденовый сплав A234 WP5, WP9, WP11, WP22, WP91, низкотемпературный сплав A420 WPL6 и др.
Stainless Steel 90 Degree Elbow Standards
- ASME B16.9
- ASME B16.11
- ПСС СП-43
- DIN 2605
- EN 10253-3 / EN 10253-4
- GB/T 12459
- GB/T 13401
- JIS B2312 / JIS B2313
- ASTM A403 / A403M
- ASTM A182
- ASTM A815
- ASME BPE
- 3-A Санитарные нормы
- DIN 11852
Surface Finishes For 90 Degree Stainless Steel Elbow
Pickled & Annealed Finish - NO.1 / 2B
ра ≥ 2.5 μm.
Sandblasted / Shot Blasted Finish
ра ≈ 1.6 – 3.2 μm.
Mechanically Polished Finish
ра ≤ 0.5 – 0.8 μm.
Electropolished Finish
ра ≤ 0.13 – 0.38 μm.
Sanitary SF1 - SF4
| SF Grade | Processing Method | Max Rа Limit |
|---|---|---|
| SF1 | Механическая полировка | ≤ 0.51 μm (20 μin) |
| SF3 | Механическая полировка | ≤ 0.76 μm (30 μin) |
| SF4 | Electrolytic Polishing | ≤ 0.38 μm (15 μin) |
Black Oxide / PVD Coated Finish
Applications for Stainless Steel 90 Degree Elbows
- Нефте- и газоперерабатывающие заводы
- Chemical Processing Plants
- Food and Beverage Manufacturing
- Pharmaceutical and Biotech Cleanrooms
- Морская и оффшорная техника
- Power Generation Stations
- Water and Wastewater Treatment
- Automotive and Aerospace Exhaust Systems
- HVAC and Industrial Refrigeration
- Commercial Architecture and Decorative Handrails
FAQs About Stainless Steel 90 Degree Elbow
A long-radius elbow has a bending radius equal to 1.5 times the pipe’s nominal diameter.It has a gentler curve, resulting in lower fluid resistance and pressure loss.A short-radius elbow has a bending radius equal to 1 times the pipe’s nominal diameter.It has a very sharp bend and high fluid resistance,and is used only in special applications where space is extremely limited and a long-radius elbow cannot fit.
Butt-weld elbows feature beveled edges and are directly butt-welded to the pipe.This provides the strongest connection and is 100% leak-proof,making it suitable for critical industrial pipelines with large diameters,high pressure,and high temperatures.
Socket-welding involves inserting the pipe directly into the socket of the elbow and then welding it from the outside.No pre-beveling is required,and alignment is easy.Suitable for high-pressure pipelines up to 2″.
Threaded connections use NPT or BSP threads.No welding is required,making disassembly and maintenance convenient at any time.Suitable for medium- and low-pressure applications in residential,light industrial,or temporary,easily removable piping systems.
We can provide material test reports for 100% of our stainless steel 90-degree elbows that comply with the EN 10204 3.1 standard.These reports include complete chemical composition analysis,mechanical property testing, and the results of hydrostatic testing or non-destructive testing.In addition,our factory is certified to ISO 9001 and holds CE/PED certification for pressure equipment.
This is not a myth.Genuine austenitic stainless steel is indeed non-magnetic or weakly magnetic at room temperature.
However,during the manufacturing process,elbows undergo intense mechanical cold working,hydraulic forming,bending,or stamping. During this deformation process,the austenitic structure inside the stainless steel undergoes localized microstructural transformations,resulting in strain-induced martensite. Martensite is ferromagnetic,so processed elbows will exhibit varying degrees of magnetism.
This does not affect corrosion resistance in any way.If you have strict non-magnetic requirements,we can help eliminate this processing-induced magnetism through high-temperature solution annealing.
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- RM901 No.22 Tangjiaqiao Road Wenzhou Китай
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
