ASTM A182 F9 Alloy Steel Weld Neck Flange
Usage:offshore, subsea , platform , oil and petroleum , chemical industry ,sea water , ...
| Anmerican Standard Flanges Pipe Flanges are widely used as a popular category of pipe fittings. A flange is used to mechanically connect two pipes together. It can also be used to mechanically connect a pipe to a tee, valve, choke or any other piece of equipment. Flanges are available in round, square, and rectangular shapes. In some cases, flanges are usually in the shape of a ring or a plate to form a rim at the end of a pipe when fastened to the pipe. This is an example of closet flange. A flange can also be a plate for covering or closing the end of a pipe. This is a blind flange. Thus, flanges are considered to be projecting or internal components which are used to support mechanical parts. They are like rims which are used to strengthen the mechanical part or they are a means of attaching that part to another part or surface. |  |
Designs of flanges:
A wide variety of flange designs are available. They are available in various shapes and sizes. Some of the popular designs are as follows:
- Butt weld
- Socket weld
- Captive
- Split
- Square
- Round
- Rectangle etc.
Custom shapes and sizes are also manufactured by numerous manufacturers. Various pipe flanges include machining details such as gasket surfaces, facing details, non-standard drilling, bevel and radius edges, o-ring grooves and raised or recessed faces. Some typical designs on flanges faces are shown below.
| Raised Fase | Chamfer |
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| Counter Bore | O-Ring Groove |
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| Radius | Gasket Surface |
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ASTM A182 F9 alloy steel weld neck flanges are a type of flange used in piping systems, designed to provide a smooth transition between pipe and the flanged component, such as valves or fittings. They are made from an alloy steel material, specifically designated as F9, which is part of the A182 series under the American Society for Testing and Materials (ASTM) standard.
The F9 grade typically refers to a high-alloy austenitic stainless steel, usually composed primarily of chromium and nickel, with additional elements like molybdenum and/or tungsten for enhanced properties. This type of steel is known for its excellent corrosion resistance, high strength, and good toughness at both high and low temperatures.
Key Characteristics of ASTM A182 F9 Weld Neck Flanges:
1. Corrosion Resistance
2. Strength and Durability
3. Smooth Transition
4. Welding Compatibility
5. Standard Compliance
6. Size and Material Specifications
ASTM A182 F9 alloy steel weld neck flanges are a robust solution for various industrial applications due to their exceptional strength, corrosion resistance, and compatibility with welding processes. Their use ensures reliability and safety in systems subjected to harsh environmental conditions or high operational demands.
A182 F9 Chemical Composition
| Gr | C | Mn | Si | S | P | Cr | Mo |
| ASTM A182 F9 Flanges | 0.15 | 0.3 - 0.6 | 0.5 - 1 | 0.03 | 0.03 | 8 - 10 | 0.9 - 1.1 |
A182 F9 Material Equivalent
| Material | Common | Type | UNS Number | Forging Specification | Casting Specification Equivalent | DIN | DIN W. Number | Application |
| 9Cr-1Mo | K90941 | A182-F9 | A217-C12 | X 12 CrMo 9 1 | 1.7386 | High temp erosive refinery service |
ASTM A182 F9 Mechanical Properties
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 380 | 585 | 20 % |
Applications of pipe flanges:
Pipe flanges are widely used in pipe fittings of various industrial, commercial and residential applications. Pipe flanges can be customized to suit your application with various machining details. These pipe flanges have been used extensively in:
- UHV applications
- Hydraulic control systems for turbine generators
- High pressure ground support missile systems
- Nuclear and conventional power plant applications etc.
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ASTM A182 F9 Alloy Steel Flange Perfect For Offshore And Chemical Industry Images
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