Carbon Steel Cladding Nozzle Flange WNRF SA266 Gr.2 SS309L 308L Weld Overlay
Carbon Steel Cladding Nozzle Flange WNRF SA266 Gr.2 SS309L 308L Weld Overlay
A nozzle flange is a type of mechanical joint used to connect piping or equipment to a nozzle, typically on a pressure vessel, tank, or reactor. The flange provides a flat surface with bolt holes that allows for a secure and leak-proof connection. This design is crucial in applications involving liquids, gases, or other materials under pressure, ensuring safety and integrity in the system. The size and specifications of the nozzle flange will vary based on the requirements of the system, including pressure rating, material compatibility, and temperature considerations.
Description:
ASTM A266 Grade 2 is a specification for carbon steel forgings intended for use in high-temperature service. This grade is particularly noted for its good weldability and mechanical properties, making it suitable for applications in pressure vessels, piping, and other structural components. It typically contains carbon, manganese, and small amounts of silicon, and it is designed to withstand elevated temperatures while maintaining strength and ductilit.
Chemical Composition Requirements
| Item | Chemical Req. for ASTM A266, % | ||
| Gr. 1 & 2 | Gr. 3 | Gr. 4 | |
| C | ≤ 0.30 | ≤ 0.35 | ≤ 0.30 |
| Mn | 0.40~1.05 | 0.80~1.35 | 0.80~1.35 |
| P | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| S | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| Si | 0.15~0.35 | 0.15~0.35 | 0.15~0.35 |
Mechanical Properties
| Tensile Requirements |
Gr. 1 | Gr. 2 & 4 | Gr. 3 |
| T.S min. ksi [Mpa] |
60~85 [415~585] |
70~95 [485~655] |
75~100 [515~690] |
| Y.S min. ksi [Mpa] |
30 [205] |
36 [250] |
37.5 [260] |
| EL. in 2" or [62.5 mm] min. % |
23 [21] |
20 [18] |
19 [17] |
| R.o.A min. % |
38 | 33 | 30 |
Nozzle flanges are commonly used in various applications, including:
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Pressure Vessels: Connecting pipes to tanks or reactors, allowing for safe containment and transfer of fluids.
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Heat Exchangers: Facilitating the attachment of inlet and outlet piping to heat exchanger units.
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Piping Systems: Serving as connection points for different sections of piping, particularly in high-pressure systems.
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Boilers: Connecting feedwater and steam lines to the boiler, ensuring efficient operation and safety.
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Chemical Processing: Allowing for the integration of equipment in chemical plants where fluids are transported under pressure.
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Oil and Gas: Used in various applications, including pipelines and processing equipment, to ensure secure connections.
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Power Generation: Connecting turbines and other equipment where high-pressure steam or gas is involved.
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