Alloy steel flanges are designed to provide superior strength, durability, and resistance to corrosion in demanding environments. With added elements such as chromium, molybdenum, nickel, and vanadium, alloy steel offers enhanced mechanical properties, making it an ideal choice for high-pressure and high-temperature applications. Commonly used in the oil and gas, petrochemical, power generation, and marine industries, alloy steel flanges provide secure connections, facilitating the assembly and disassembly of piping systems with ease.
Our alloy steel flanges are manufactured to meet international standards like ASME, ASTM, and EN, ensuring quality and reliability in a wide range of applications. Available in a variety of grades, sizes, and pressure ratings, alloy steel flanges provide a dependable solution for industries requiring robust performance under challenging conditions.
- High Strength and Durability: Alloy steel flanges offer exceptional mechanical strength, suitable for high-stress, high-pressure environments.
- Corrosion and Oxidation Resistance: The addition of chromium and molybdenum enhances resistance to corrosion and oxidation, ideal for applications in harsh or corrosive environments.
- Temperature Tolerance: Alloy steel flanges maintain their strength and stability even in extreme temperatures, making them suitable for boilers, pressure vessels, and steam applications.
- Extended Service Life: Due to their wear and abrasion resistance, alloy steel flanges deliver a longer operational life, reducing the need for frequent maintenance.
- Versatile Applications: Alloy steel flanges are highly versatile and can be used across various industries, from oil and gas to chemical processing and power generation.
- Weld Neck Flanges: Known for their high strength and secure connection, weld neck flanges are suitable for high-pressure applications. The long neck transfers stress to the pipe, reducing the risk of deformation.
- Slip-On Flanges: These flanges slide over the pipe and are welded both inside and outside for added strength. They are ideal for low- to medium-pressure applications.
- Socket Weld Flanges: Socket weld flanges provide a high-strength connection and are used for smaller pipes. They are typically applied in high-pressure systems.
- Blind Flanges: Designed to seal the end of a piping system, blind flanges are often used in pressure testing and maintenance, providing easy access to the pipe when necessary.
- Lap Joint Flanges: Lap joint flanges are used in conjunction with a stub end, allowing the flange to rotate for easy alignment. These are commonly used where frequent disassembly is required.
- Threaded Flanges: These flanges are ideal for small-diameter, low-pressure applications and do not require welding, making installation and removal easy.
- Orifice Flanges: Orifice flanges are used to measure the flow rate of liquids and gases in a pipeline. They are typically used in conjunction with orifice plates.
Our alloy steel flanges are available in various grades to meet specific application needs:
- Grade A182 F5, F9, F11, F22, and F91 (Chromium-Molybdenum): These grades offer excellent strength and resistance to high temperatures, commonly used in the power generation, petrochemical, and oil and gas industries.
- Grade F304 and F316 (Stainless Alloy Steel): Known for superior corrosion resistance, these grades are ideal for applications exposed to harsh chemicals or seawater.
- Grade F1 and F2: Ideal for low-temperature applications, providing moderate strength and corrosion resistance.
- Nickel Alloy Grades (e.g., Inconel, Monel): Nickel-based alloy steel grades provide exceptional corrosion resistance, suitable for applications in chemical processing and marine environments.
- Oil and Gas Industry: Alloy steel flanges are widely used in pipelines, drilling equipment, and processing units due to their strength and corrosion resistance, particularly in offshore and sour gas applications.
- Chemical Processing: The high corrosion resistance of alloy steel flanges makes them suitable for reactors, condensers, and other chemical processing equipment exposed to acids and harsh chemicals.
- Power Generation: Alloy steel flanges are used in boilers, turbines, and high-temperature pipelines in power plants where they withstand heat and pressure effectively.
- Petrochemical Plants: Used in refineries and petrochemical plants, alloy steel flanges provide reliable performance under corrosive and high-stress conditions.
- Marine and Offshore Applications: With excellent resistance to saltwater corrosion, alloy steel flanges are ideal for marine and offshore equipment, including seawater cooling systems and offshore platforms.
- Automotive and Heavy Machinery: Alloy steel’s strength and durability make it ideal for heavy-duty machinery components and automotive parts.
Our alloy steel flanges are manufactured according to rigorous international standards to ensure consistent quality and performance:
- ASTM A182: Covers alloy and stainless steel flanges for high-temperature service.
- ASME B16.5: Standard for pipe flanges and flanged fittings for sizes NPS ½ to NPS 24.
- EN 1092-1: European standard for flanges, including alloy steel grades.
- ANSI B16.47: Standard for large-diameter steel flanges (sizes NPS 26 to NPS 60).
- Hot-Dip Galvanized: Provides additional corrosion resistance, suitable for outdoor and marine applications.
- Electro-Polished: Delivers a smooth, clean finish with enhanced corrosion resistance.
- Black Oxide Coating: Offers moderate corrosion protection and a sleek black finish.
- Anti-Rust Oil Coating: Protects the surface from rust during storage and transportation.
- Custom Coatings: We offer custom coatings tailored to specific environmental conditions and project needs.
To meet specific project requirements, we offer a range of customization options for alloy steel flanges:
- Dimensions and Sizes: Available in a wide range of sizes and thicknesses to meet pressure and load requirements.
- Grades and Alloys: Choose from various alloy steel grades, including chromium-molybdenum and nickel alloys, depending on application needs.
- Pressure Ratings: From Class 150 to Class 2500, as well as custom pressure ratings, to suit different industrial requirements.
- End Configurations: Options include raised face (RF), flat face (FF), and ring type joint (RTJ) for various sealing applications.
- Surface Coatings: Custom anti-corrosion coatings are available to enhance durability and lifespan.
Our alloy steel flanges are subject to rigorous quality control measures to ensure they meet the highest standards. Each flange is tested for mechanical properties, corrosion resistance, and dimensional accuracy. Certifications and third-party inspections are available upon request to provide additional quality assurance for critical applications.
Products
Industry We Serve
- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry