Hastelloy C22 Flanges Supplier in China
They are manufactured from alloy c22,a premium nickel-chromium-molybdenum-tungsten sueralloy.This specific material composition makes these flanges far superior to standard stainless steel in resisting aggressive chemical attacks,pitting,and high temperatures.
Key Benefits And Features
- Universal Corrosion Resistance:
They offer robust protection in both oxidizing and reducing chemical streams,a rare feat for standard alloys. - Superior Intergranular Stability:
The alloy resists the formation of grain-boundary precipitates during welding.This allows the flanges to be used safely in an “as-welded” state without losing corrosion resistance. - Temperature Resilience:
They maintain mechanical integrity at cryogenic limits and can withstand extreme operational heat up to 1250°F (677°C) for continuous exposure. - C22 vs. C276 Upgrade:
While similar to the popular Hastelloy C276,C22 contains higher chromium content,providing significantly better protection against localized pitting and highly oxidizing environments
Common Types of Flanges
- Фланец со сварной горловиной:
Features a long tapered hub that welds directly to the pipe,ideal for high-pressure systems. - Накладной фланец:
Slides over the pipe and is welded both inside and outside for easier alignment. - Заглушка:
Solid discs used to seal off the end of a piping system or pressure vessel. - Фланец под сварку с муфтой:
Used to seal off or block the end of a piping system. - Фланец соединения внахлест:
Paired with a stub end for systems that require frequent dismantling and cleaning.
Эквивалентные обозначения сплава Hastelloy C22
| Стандарты | UNS | DIN / W.Nr. | EN | JIS | AFNOR |
|---|---|---|---|---|---|
| C22 | N06022 | 2.4602 | NiCr21Mo14W | NW 6022 | NU-30M |
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Dimensions of Our Flanges
Стандарт фланца
Мы поставляем фланцы из нержавеющей стали различных стандартов, включая, но не ограничиваясь следующими:
ASME/ANSI B16.5, B16.47A/B, ASME B16.36, MSS SP-44, ISO7005-I, API тип 6B/6BX, API605, GB9112~9124, BS1560-3.1,
EN 1092-1 (DIN2527, 2636, 2637, 2638, 2566, 2576, 2632, 3633, 2635, 2642, 2653, 2656, 2655 и т.д.)JIS B2220, AS2129, AS4078, ГОСТ 33259, ГОСТ 12820/12821, ГОСТ 12816 и др.
Вместимость
Это около 400 тонн в месяц для каждого типа фланцев. Мы производим и поставляем фланцы от класса 150 до класса 2500, фланцы из нержавеющей стали и дуплексной стали являются нашей сильной стороной.Тарифы: 150 ФУНТОВ, 300 ФУНТОВ, 600 ФУНТОВ, 900 ФУНТОВ, 1500 ФУНТОВ, 2500 ФУНТОВ.Размер: 1/2" - 72" (DN15 ~DN1800)
Chemical Composition of Hastelloy C22 Flanges, wt.%
| Элемент | Ni | Cr | Пн | Fe | W | Co | Mn | V | Si | п | S | C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C22 | Остаток средств | 20.0 – 22.5 | 12.5 – 14.5 | 2.0 – 6.0 | 2,5 – 3,5 | ≤ 2.5 | ≤ 0.5 | ≤ 0.35 | ≤ 0.08 | ≤ 0.02 | ≤ 0.02 | ≤ 0,015 |
Mechanical Properties of Hastelloy C22 Flanges
| Механические свойства | Предел прочности | Предел текучести | Удлинение | Твердость |
|---|---|---|---|---|
| Хастеллой C22 | ≥ 690 МПа (100 ksi) | ≥ 310 МПа (45 кси) | ≥ 45% | ≤ 90 HRB |
Applications of Hastelloy C22 Flanges
- Reboilers and Condensers in Chemical Processing
- Pharmaceutical Reaction Vessels
- Sour Gas Extraction Piping
- Wet Chlorine Gas Transfer Lines
- Flue Gas Desulfurization Scrubbers
- Acetic Acid Production Equipment
- Spent Nuclear Fuel Reprocessing
- Marine and Subsea Equipment
- Industrial Wastewater Neutralization
- Pesticide and Herbicide Manufacturing
The Relationship Between Hastelloy C22 Flanges and Pipes
Dimensional and Structural Matching
- Bore Matching:
The inner diameter of a weld neck flange must be machined to exactly match the internal schedule of the C22 pipe.This ensures a smooth,seamless fluid flow inside,preventing turbulent zones that can lead to localized erosion. - Sizing Standards:
Flanges are sized using ASME B16.5 or B16.47,which corresponds precisely to the nominal pipe size standards governing the pipes under ASME B36.19.A 4-inch Class 300 flange will precisely fit a 4-inch pipe.
Metallurgical Harmony and Welding
- The “As-Welded” Advantage:
Hastelloy C22 has an extremely low carbon content,so no carbide precipitates form during welding. - Corrosion Continuity:
The welded joint exhibits the same excellent resistance to pitting,crevice corrosion,and cracking as the parent pipe.No post-weld heat treatment is required.
Mechanical Force Transmission
- Anchoring and Support:
Flanges act as the heavy-duty anchor points for the relatively thin-walled C22 pipe.They transition the pipeline into valves,pumps,and reactors. - Тепловое расширение:
Both the flange and the pipe have the exact same coefficient of thermal expansion.When the pipeline heats up to its maximum limits (up to 1250°F / 677°C),the flange and pipe expand at the identical rate,preventing destructive thermal stresses or bending moments at the joint.
Cost Optimization Strategy
- Solid C22 Systems:
For maximum pressure and critical safety,solid C22 flanges are welded directly to solid C22 pipes. - Lap Joint / Stub End Economy:
To save money on large-diameter pipelines,engineers will weld a small,lightweight Hastelloy C22 stub end onto the C22 pipe,and then slide a cheaper,standard stainless steel or carbon steel lap joint flange behind it.The fluid only touches the C22 pipe and stub end,while the cheaper steel flange handles the mechanical bolting.
Frequently Asked Questions
Their premium cost is driven by two factors:raw materials and machining difficulty.The alloy contains high percentages of expensive elements like nickel,molybdenum,and tungsten.Because the material is engineered to resist high-temperature deformation,it causes severe tool wear during the forging and machining processes,increasing manufacturing costs.
Если вы хотите узнать цену или отправить нам заказ на покупку, пожалуйста, удалите эту информацию:
Тип фланца + RF/RTJ/FF + Класс (включая трубу SCH для фланцев WN и SW) + Размер + Материал + Стандарт + Количество для заказа
Например, вы хотите купить 100 шт. фланцев с приварной горловиной и рельефной поверхностью для вашей системы, труба 8" SCH40S, давление класса 300 из нержавеющей стали 316, конструкция трубопровода соответствует ASME, поэтому описание будет следующим:
Фланец WNRF, 8" 300# SCH40S, A182 F316, ASME B16.5, 100PCS
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- RM901 No.22 Tangjiaqiao Road Wenzhou Китай
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
