ASTM A182 Alloy Steel F11 Flanges: Properties, Advantages, and Applications
Welcome to Amardeep Steel Centre LLP, your trusted partner in high-quality steel products. In this detailed guide, we will explore the key aspects of ASTM A182 Alloy Steel F11 Flanges, from their properties and advantages to their applications. Whether you are looking for reliable ASTM A182 Alloy F11 Flanges suppliers and manufacturers or simply want to understand the benefits of these flanges, you are in the right place.
What are ASTM A182 Alloy Steel F11 Flanges?
ASTM A182 Alloy Steel F11 Flanges are specialized components used in piping systems to connect pipes, valves, pumps, and other equipment. Made from alloy steel grade F11, these flanges are known for their exceptional mechanical properties, making them suitable for high-temperature and high-pressure applications.
The ASTM A182 specification covers forged or rolled alloy steel pipe flanges, forged fittings, and valves, among other products. Grade F11 specifically refers to an alloy that contains chromium, molybdenum, and iron, offering enhanced resistance to corrosion, wear, and temperature fluctuations.

Properties of ASTM A182 Alloy Steel F11 Flanges
Understanding the properties of ASTM A182 Alloy F11 Flanges is crucial for selecting the right product for your application. Here are some key properties that make these flanges a preferred choice in various industries:
- High-Temperature Resistance: ASTM A182 Alloy Steel F11 Flanges are designed to withstand extreme temperatures, making them ideal for use in industries such as petrochemicals, power generation, and refineries.
- Corrosion Resistance: The chromium content in F11 alloy steel provides excellent resistance to oxidation and corrosion, ensuring long-lasting performance in aggressive environments.
- Mechanical Strength: These flanges offer superior mechanical strength, which is essential for high-pressure applications. The addition of molybdenum enhances the flange’s ability to resist deformation under stress.
- Toughness and Ductility: The alloy’s composition ensures a good balance of toughness and ductility, which means the flanges can absorb impact without fracturing and can be shaped into various forms without compromising strength.
- Weldability: ASTM A182 Alloy Steel F11 Flanges are known for their good weldability, allowing for easy installation and integration into piping systems.
Advantages of ASTM A182 Alloy Steel F11 Flanges
When choosing flanges for your projects, understanding the advantages of Flanges ASTM A182 Alloy F11 can help you make an informed decision. Here are some of the benefits of using these flanges:
- Versatility: These flanges are suitable for a wide range of applications, including steam pipelines, pressure vessels, and chemical processing plants. Their ability to perform well in both low and high-temperature environments makes them highly versatile.
- Long Service Life: The durability of ASTM A182 Alloy F11 Flanges ensures a long service life, reducing the need for frequent replacements and maintenance. This longevity translates into cost savings over time.
- Safety: The robust design and high mechanical strength of these flanges contribute to the overall safety of the piping systems in which they are used. They can withstand high pressure without risk of leakage or failure.
- Cost-Effective: Despite their high-quality material and manufacturing process, ASTM A182 Alloy Steel F11 Flanges are cost-effective, especially when considering their long-term performance and reliability.
- Compliance with Standards: These flanges are manufactured in compliance with ASTM A182 standards, ensuring they meet the stringent requirements of various industries. This compliance guarantees the flanges’ reliability and compatibility with other components.


Schedule and Size Chart
Nominal Pipe Size (NPS) | Outside Diameter (OD) | Flange Thickness (T) | Bolt Circle Diameter | Number of Bolts | Bolt Size |
1/2″ | 3.5″ (88.9 mm) | 0.62″ (15.7 mm) | 2.38″ (60.5 mm) | 4 | 1/2″ |
3/4″ | 3.88″ (98.6 mm) | 0.62″ (15.7 mm) | 2.75″ (69.9 mm) | 4 | 1/2″ |
1″ | 4.25″ (108 mm) | 0.69″ (17.5 mm) | 3.12″ (79.2 mm) | 4 | 1/2″ |
1-1/2″ | 5″ (127 mm) | 0.75″ (19.1 mm) | 3.88″ (98.6 mm) | 4 | 1/2″ |
2″ | 6″ (152.4 mm) | 0.81″ (20.6 mm) | 4.75″ (120.7 mm) | 4 | 5/8″ |
3″ | 7.5″ (190.5 mm) | 0.94″ (23.9 mm) | 6″ (152.4 mm) | 4 | 5/8″ |
4″ | 9″ (228.6 mm) | 1″ (25.4 mm) | 7.5″ (190.5 mm) | 8 | 5/8″ |
6″ | 11″ (279.4 mm) | 1.12″ (28.4 mm) | 9.5″ (241.3 mm) | 8 | 3/4″ |
8″ | 13.5″ (342.9 mm) | 1.25″ (31.8 mm) | 11.75″ (298.5 mm) | 8 | 3/4″ |
Mechanical Properties Chart
Property | Value |
Tensile Strength | 415 MPa (60,000 psi) |
Yield Strength | 205 MPa (30,000 psi) |
Elongation | 20% (in 50mm) |
Reduction of Area | 35% |
Hardness (Brinell) | 170-210 HBW |
Impact Strength | 54 J (Charpy V-notch) |
Specifications Chart
Specification | Details |
Standard | ASTM A182 / ASME SA182 |
Grade | F11 |
Type | Alloy Steel Flanges |
Pressure Rating | ANSI Class 150 to 2500 |
Size Range | 1/2″ to 24″ |
Face Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
Manufacturing Process | Forged |
Heat Treatment | Normalized and Tempered |
Chemical Composition Chart
Element | Composition (%) |
Carbon (C) | 0.05 – 0.15 |
Manganese (Mn) | 0.30 – 0.60 |
Silicon (Si) | 0.50 Max |
Phosphorus (P) | 0.025 Max |
Sulfur (S) | 0.025 Max |
Chromium (Cr) | 1.00 – 1.50 |
Molybdenum (Mo) | 0.44 – 0.65 |
Vanadium (V) | 0.03 – 0.08 |
Physical Properties Chart
Property | Value |
Density | 7.85 g/cm³ |
Melting Point | 1425-1510°C (2597-2750°F) |
Specific Heat | 460 J/kg·K |
Thermal Conductivity | 30.6 W/m·K |
Electrical Resistivity | 0.68 µΩ·m |
Application Chart
Industry | Application |
Oil and Gas | High-temperature pipelines, refineries, gas processing |
Power Generation | Steam and gas turbines, power plants, pressure vessels |
Chemical Processing | Chemical reactors, heat exchangers, process piping |
Petrochemical | Cracking units, catalytic reformers, distillation columns |
Marine Engineering | Seawater piping, marine machinery, offshore platforms |
Aerospace | Engine components, turbine assemblies, high-stress parts |
Pharmaceutical | Sterilization equipment, sanitary piping systems |
ASTM A182 Alloy F11 Flanges Suppliers and Manufacturers
At Amardeep Steel Centre LLP, we pride ourselves on being leading ASTM A182 Alloy F11 Flanges suppliers and manufacturers. Our flanges are manufactured using high-quality alloy steel and adhere to the strictest industry standards. We understand the critical role these flanges play in your projects, and we are committed to providing products that meet your exact specifications.
Our flanges are available in various sizes, pressure ratings, and types, including slip-on flanges, weld neck flanges, blind flanges, and socket weld flanges. Whether you need flanges for a new installation or to replace existing components, we have the expertise and resources to meet your needs.
ASTM A182 Alloy F11 Flanges Exporters and Traders
As experienced ASTM A182 Alloy F11 Flanges exporters and traders, Amardeep Steel Centre LLP serves clients across the globe. Our flanges are exported to various countries, where they are used in critical industrial applications. We have established a reputation for reliability, quality, and timely delivery, making us a preferred choice for international clients.
Our team of experts ensures that all flanges are thoroughly inspected and tested before shipment, ensuring they meet the highest standards of quality and performance. We offer flexible shipping options and can handle large orders with ease, making us a reliable partner for your flange needs.
ASTM A182 Alloy Steel F11 Flanges are an essential component in various industries, offering unmatched performance, durability, and safety. At Amardeep Steel Centre LLP, we are dedicated to providing high-quality flanges that meet the specific requirements of our clients. Whether you are in the market for Flanges ASTM A182 Alloy F11 or need assistance in selecting the right product, our team is here to help.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM A182 Alloy Steel F11 Flanges. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.