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Alloy Steel A182 F22 Flanges are high-performance forged fittings designed for use in high-temperature and high-pressure applications. Manufactured from ASTM A182 F22 alloy steel, these flanges provide excellent resistance to corrosion, heat, and mechanical stress, making them ideal for industrial piping systems.
The A182 F22 material is a chromium-molybdenum alloy steel, offering superior strength and durability compared to carbon steel. The alloy typically contains chromium (0.5-1.25%), molybdenum (0.44-0.65%), carbon (0.05-0.15%), and other trace elements to enhance hardness and toughness.
Alloy Steel A182 F22 Flanges are available in various types, including weld neck flanges, slip-on flanges, socket weld flanges, blind flanges, threaded flanges, and lap joint flanges. Each type serves specific purposes in industrial piping, from easy assembly to pressure-tight connections.
These flanges are manufactured according to ASTM A182, ASME B16.5, and ANSI standards. They come in different pressure ratings (150, 300, 600, 900, 1500, and 2500 lbs) and sizes ranging from 1/2 inch to 48 inches, providing versatility for different piping systems.
Alloy Steel A182 F22 Flanges exhibit excellent mechanical properties, including high tensile strength, yield strength, and impact resistance. Typical tensile strength ranges from 550–750 MPa, while yield strength is approximately 250–450 MPa, ensuring reliable performance under heavy loads.
The chromium and molybdenum content provides outstanding resistance to oxidation and corrosion in high-temperature environments. This makes A182 F22 flanges suitable for applications in power plants, petrochemical industries, and refineries where high temperatures and pressures are common.
These flanges are widely used in the oil and gas sector, chemical plants, steam power plants, and industrial piping systems. They are ideal for handling high-pressure steam, water, oil, and other industrial fluids, ensuring safety and longevity in critical operations.
Alloy Steel A182 F22 Flanges are produced through advanced forging techniques followed by heat treatment. This process improves the microstructure, toughness, and dimensional accuracy of the flanges. Surface finishing and precision machining ensure proper fit and leak-proof connections.
Key advantages include high strength, durability, excellent heat and corrosion resistance, and compatibility with high-pressure systems. Their robust design reduces maintenance costs and enhances the safety of piping systems in industrial setups.
Specification Table
| Specification | Description |
|---|---|
| Standard | ASTM A182 |
| Grade | F22 |
| Material Type | Alloy Steel |
| Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded |
| Pressure Rating | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | 1/2" to 48" |
| Temperature Range | -29°C to 450°C (-20°F to 842°F) |
| Applications | Oil & Gas, Petrochemical, Power Plants, High Pressure Steam Systems |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | 485-620 MPa (70-90 ksi) |
| Yield Strength | 245 MPa min (35 ksi) |
| Elongation (in 50 mm) | 20% min |
| Hardness | 197-241 HB (Brinell) |
| Impact Toughness (Charpy V-Notch) | 27 J @ -20°C (-4°F) min |
| Temperature Resistance | Up to 450°C (842°F) |
| Corrosion Resistance | Good resistance to oxidizing environments and moderate corrosive conditions |
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM A182 | F22 |
| ASME | SA182 F22 |
| EN (Europe) | 1.7380 / 22CrMoV12-1 |
| DIN (Germany) | 22CrMoV12-1 |
| JIS (Japan) | SCM422H |
| GB (China) | 20CrMoV |
Dimension & Weight Chart (Selected common sizes)
Below is a representative chart showing outside diameter, wall thickness, inside diameter, cross-sectional area of metal and calculated weight per metre (kg/m). Values are calculated using density = 7.93 g/cm³ and are for guidance — use actual MTC values for procurement & engineering.
| Nominal Size (inch) | Outer Diameter (mm) | Thickness (mm) | Bolt Circle Diameter (mm) | Number of Bolts | Bolt Size | Weight (kg) |
|---|---|---|---|---|---|---|
| 1/2" | 95 | 16 | 73 | 4 | M16 | 1.2 |
| 1" | 120 | 18 | 90 | 4 | M16 | 1.8 |
| 2" | 150 | 20 | 110 | 4 | M16 | 3.5 |
| 4" | 220 | 22 | 180 | 8 | M20 | 9.0 |
| 6" | 280 | 24 | 240 | 8 | M22 | 15.5 |
| 8" | 360 | 26 | 295 | 8 | M24 | 24.0 |
| 10" | 400 | 28 | 350 | 12 | M24 | 35.0 |
| 12" | 480 | 30 | 410 | 12 | M27 | 50.0 |
Common Types Of Flangess
Ring Flanges
Type of Flanges
General Flanges
Stainless Steel Pipe Flanges
ASME B16.5 Flanges
Stainless Steel Flanges
Frequently Asked Questions (FAQ)
What is Alloy Steel A182 F22 Flange?
Alloy Steel A182 F22 Flange is a high-strength flange made from ASTM A182 F22 alloy steel, suitable for high-temperature and high-pressure applications in industries like oil & gas, petrochemical, and power plants.
What types of flanges are available in A182 F22?
The common types include Weld Neck, Slip-On, Blind, Socket Weld, and Threaded flanges.
What is the temperature range for A182 F22 Flanges?
They can operate in temperatures ranging from -29°C to 450°C (-20°F to 842°F) depending on the application and pressure rating.
What are the mechanical properties of A182 F22 Flanges?
Tensile Strength: 485-620 MPa (70-90 ksi), Yield Strength: 245 MPa min (35 ksi), Elongation: 20% min, Hardness: 197-241 HB, Impact Toughness: 27 J @ -20°C min.
What are the equivalent grades of A182 F22 Flanges?
Equivalent grades include EN 1.7380 / 22CrMoV12-1, DIN 22CrMoV12-1, JIS SCM422H, and GB 20CrMoV.
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