ASTM A182 F22 alloy steel bars are a type of chrome-moly alloy steel known for their excellent mechanical properties, high strength, and corrosion resistance. These bars conform to the ASTM A182 specification, which covers forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service. F22 alloy steel bars are specifically designed for high-temperature applications, making them suitable for use in various industries where elevated temperatures and pressure conditions are present.
What is ASTM A182 F22 Alloy Steel?
ASTM A182 F22 is a low alloy steel containing chromium and molybdenum, which enhances its strength and corrosion resistance properties. It has good weldability and formability, making it suitable for various fabrication processes. F22 alloy steel bars are typically available in the form of round bars, square bars, and hexagonal bars, catering to different industrial requirements.
Table Of Content
High Strength: F22 alloy steel bars offer exceptional strength properties, enabling them to withstand high stress and load-bearing applications.
Corrosion Resistance: The addition of chromium and molybdenum enhances the alloy's resistance to corrosion, making it suitable for use in corrosive environments.
High Temperature Performance: These bars exhibit excellent resistance to high temperatures and thermal stress, making them ideal for applications in high-temperature environments.
Versatility: F22 alloy steel bars can be easily fabricated and machined into various shapes and sizes, offering versatility in design and application.
Weldability: They possess good weldability, allowing for ease of welding and joining with other components during fabrication processes.
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Specifications | ASTM A182, ASME SA182 |
Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
Bar Diameter | 3 ~ 800mm |
Hex Bar size | 2-100mm A/F |
Flat bar size | Thickness: 2 -100mm. Width: 10 to 500mm. |
Square bar size | 4 to 100mm |
Rectangular Bars | Size: 33 x 30mm to 295 x 1066mm. Thickness: 3.0 to 12.0mm. |
Hollow Bars | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
Billet Size | 1/2 to 495mm Diameter |
Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements |
Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
Rolled Bars Condition | Hardened & tempered, annealed |
Cold Rolled Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
Melting
The first step in the process is melting raw materials in an electric furnace. These raw materials are typically iron ore, chromium, nickel, and other elements in exact amounts.
Hot Rolling
After being heated, the billets are shaped into long, thin rods by going through a series of rolling mills. Because the metal is heated above its recrystallization temperature during this operation, it is known as hot rolling.
Pickling
The pickling process is used to the bars in order to eliminate any oxide, scale, or other surface contaminants. Usually, an acid solution is used for this.
Cutting
Lastly, shearing machines or other cutting techniques are used to cut the rods to the required length.
STANDARD | UNS | WNR. |
Alloy Steel F22 | K21590 | 1.7380 |
Grade | C | Mn | Si | P | Cr | Mo |
ASTM A182 F22 | 0.05 - 0.15 | 0.30 - 0.60 | 0.50 max | 0.040 | 2.00 - 2.50 | 0.87 - 1.13 |
Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
570 | 23 | 295 |
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Power Generation: F22 alloy steel bars are commonly used in power generation plants for components such as turbine rotors, shafts, and bolts due to their high-temperature strength and creep resistance.
Petrochemical Industry: They find applications in petrochemical refineries for piping systems, valves, and fittings that handle high-pressure and high-temperature fluids.
Oil and Gas: F22 alloy steel bars are used in oil and gas exploration and production equipment, including drill collars, wellhead components, and valves, where corrosion resistance and strength are crucial.
Aerospace: In aerospace applications, F22 alloy steel bars are used for manufacturing critical components such as landing gear, engine parts, and structural components that require high strength-to-weight ratios and resistance to fatigue.
Chemical Processing: F22 alloy steel bars are utilized in chemical processing industries for equipment like reactors, heat exchangers, and vessels that operate under aggressive chemical environments at elevated temperatures.
Oil & Gas
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Power Plant Generation
Petrochemical Industry
Marine
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Aerospace
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Chemical
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Pharmaceuticals Industry
Cement
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