Alloy Steel F11 Flanges Manufacturers, Exporters, and Suppliers
Nakoda Steel Industry is a well-known manufacturer, supplier, and exporter of Alloy Steel F11 Flanges, providing durable, high-quality flanges for various industrial applications.
Our Alloy Steel F11 products are renowned for their excellent mechanical properties and outstanding resistance to corrosion, making them highly suitable for challenging environments and applications that demand high performance.

We specialize in a wide range of Alloy Steel F11 Slip On Flanges, Threaded Flanges, Weld Neck Flanges, and Blind Flanges, designed to meet the strictest standards and provide superior reliability. Whether you need flanges for general use, or specific resistance to corrosive acids, Nakoda Steel Industry ensures that every flange is engineered for optimum performance.
High-Quality Alloy Steel F11 Flanges for All Applications
Our Alloy Steel F11 Pipe Flanges offer exceptional resistance to high-temperature oxidation, scaling, and stress corrosion cracking. These flanges, particularly Alloy Steel F11 Threaded Flanges and Weld Neck Flanges, are designed to withstand extreme conditions, providing outstanding reliability and longevity.
One of the key attributes of Alloy Steel F11 Slip On Flanges is their excellent resistance to sulfuric acid and chloride stress corrosion cracking. These flanges are engineered for a range of applications, including chemical processing, food handling, and other industries requiring high corrosion resistance.
Our Alloy Steel F11 Blind Flanges offer superior mechanical properties at both ambient and elevated temperatures. With a temperature tolerance of up to approximately 930°F (500°C), these flanges are suitable for various industrial processes where temperature stability is critical.
Precision Engineering for Unmatched Durability
At Nakoda Steel Industry, we ensure that our Alloy Steel F11 Weld Neck Flanges are forged using the latest technologies and follow the highest industry standards. The flanges undergo a thorough tempering process at 1725°F – 1850°F (941°C – 1010°C), followed by quenching and cold working to achieve the desired hardness and durability. The result is a highly reliable product with minimal shrinkage during strengthening and aging, which leads to uniform and predictable results.
Superior Resistance to Stress Corrosion Cracking
One of the standout features of Alloy Steel F11 products is their exceptional resistance to stress corrosion cracking (SCC) and acid attack. The alloy’s superior sulfuric acid resistance makes it the ideal choice for industries that work with aggressive chemicals, including petrochemical processing and manufacturing.
Unlike other materials that might be susceptible to corrosion when exposed to acidic or humid environments, Alloy Steel F11 Flanges maintain their structural integrity and resistance, even when in contact with 20% to 40% sulfuric acid solutions. This makes them a reliable choice for long-term performance in harsh industrial conditions.
Key Features of Alloy Steel F11 Flanges:
- Excellent Resistance to Acid Attack: Resistant to stress-corrosion cracking and sulfuric acid, ensuring longevity in harsh environments.
- Superior Mechanical Properties: High tensile strength and outstanding performance at temperatures up to 930°F (500°C).
- Fabrication Ease: Alloy Steel F11 Flanges are easily fabricated using standard industrial processes, ensuring fast and cost-effective production.
- High-Temperature Stability: Retains excellent properties at elevated temperatures, making them ideal for applications in high-heat environments.
- Corrosion Resistance: Alloy Steel F11 Weld Neck Flanges and Socket Weld Flanges offer high resistance to general corrosion, including chloride stress corrosion cracking.
Alloy Steel F11 Pipe Flanges Specifications
- Specifications: ASTM A182 / ASME SA182
- Size: 1/2″ (15 NB) to 48″ (1200NB)
- Standards: ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
- Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64, etc.
- Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Alloy Steel F11 Pipe Flanges Testing & Certification
At Nakoda Steel Industry, we believe in delivering only the highest quality products to our customers. All of our Alloy Steel F11 Flanges undergo rigorous testing before they are dispatched. We ensure that all materials meet the highest standards of quality and performance through comprehensive testing and certification, including:
- Mechanical Testing: Tensile strength, hardness tests, and more.
- Chemical Analysis: Spectro analysis to confirm material composition.
- Positive Material Identification (PMI) Testing: Ensuring the correct alloy grade.
- 100% Radiography Test Report: Ensuring no defects in the material.
- Third-Party Inspection Report: Independent validation of material quality.
- Material Certification: Including EN 10204/3.1B and Raw Materials Certificate.
In addition to the standard certifications, we also provide specific test reports for customers on request, such as NACE MR 01075 certification for sulfuric acid resistance and Ferrite Content testing, ensuring compliance with all relevant industry standards.
Why Choose Nakoda Steel Industry for Alloy Steel F11 Flanges?
- Expertise: With years of experience in supplying high-quality Alloy Steel F11 Flanges, we have built a strong reputation in the global market, especially in the US.
- Customer Satisfaction: We prioritize our customers’ needs, offering both standard and customized solutions to meet the unique requirements of each project.
- On-Time Delivery: We are committed to delivering products on time, ensuring that your operations are never delayed.
- Competitive Pricing: Offering cost-effective pricing without compromising on quality.
Whether you need Alloy Steel F11 Flanges for critical applications or routine industrial use, Nakoda Steel Industry is your trusted partner for top-quality flanges. Contact us today to place your order or request more information about our Alloy Steel F11 Flanges.