ASTM A182 F9 ALLOY STEEL FORGED FLANGE , SORF WNRF FLANGE , B16.5 B16.47
A182 F9 flange refers to a specific type of flange material that is made from a particular alloy steel known as ASTM A182 F9. This is a material specification for forged or rolled alloy steel flanges, fittings, and valves, typically used in high-temperature, high-pressure applications.
1.Material Composition
ASTM A182 F9 is a grade of steel that primarily consists of:
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A182 F9 | 0.15 | 0.3-0.6 | 0.5-1 | 0.03 | 0.03 | 8-10 | 0.9-1.1 |
2. Applications
A182 F9 flanges are commonly used in industries that require high resistance to heat and pressure, such as:
- Power plants
- Petrochemical and chemical processing
- Oil and gas pipelines
- Steam generation systems
- These flanges are typically used in systems carrying steam, hot water, or gases that are subject to high-temperature conditions.
3. Flange Types:
- Weld Neck Flanges: Often used in high-pressure systems.
- Slip-On Flanges: Easy to install and suitable for lower pressure systems.
- Blind Flanges: Used to seal the end of a pipe or vessel.
- Socket Weld Flanges: Designed for smaller diameter pipes.
4. Strength and Durability:
- A182 F9 flanges exhibit excellent mechanical properties at elevated temperatures (up to 650°F or 343°C) and are resistant to oxidation and corrosion in environments where high temperature and pressure are present.
ASME SA182 Alloy Steel F9 Flanges Mechanical Properties
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A182 F9 | 380 | 585 | 20 |
The A182 F9 flange is a high-performance component made from a chromium-molybdenum alloy steel, ideal for applications requiring resistance to both high pressure and elevated temperatures. It is widely used in critical industries like power generation and petrochemical processing.
Test Certificate
Mill Test Certificate as per EN 10204 / 3.1B
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