ASTM A182 F91 Flanges are high-performance flanges made from alloy steel, specifically designed to withstand extreme conditions. These flanges are manufactured and exported by Ferro Fittings and Alloys, located in Mumbai, India. With a commitment to quality and precision, our flanges meet stringent industrial standards, making them ideal for various applications across multiple sectors.
These flanges adhere to the relevant ASTM and ASME standards, ensuring their reliability and performance. They are available in a wide range of sizes, from DN 15 to DN 1200 (NPS ½ to NPS 48), with pressure ratings spanning from Class 150 to 2500 (PN10–PN400). Designed to operate in temperature ranges from -29°C to 550°C (-20°F to 1022°F), these flanges can accommodate various end connections, including weld neck, slip-on, blind, and threaded types, making them versatile for different piping systems.
Industries such as Oil & Gas, Petrochemical, Chemical, Power, Pharmaceutical, and Shipbuilding rely heavily on these flanges for their projects. Our products are well-suited for EPC and LSTK projects, as well as maintenance applications in regions like the UAE, Saudi Arabia, Qatar, the UK, and the USA, ensuring that your operations run smoothly and efficiently.
Ferro Fittings and Alloys is proud to hold ISO 9001:2015 certification, demonstrating our commitment to quality management. We provide EN 10204 3.1 and 3.2 Mill Test Certificates for our products, ensuring transparency and traceability. In-house testing capabilities include PMI, Hydrostatic, Hardness, Impact (Charpy), UT, and LPT to guarantee the integrity of our flanges. Moreover, our products comply with NACE MR 0175 / ISO 15156 standards for sour service applications. Request a free MTC sample or get a quick quote via WhatsApp.
Choosing Ferro Fittings means opting for a competitive lead time of just 2–4 weeks, with no minimum order quantity restrictions and ample stock availability. We offer shipping terms of FOB Mumbai, CIF, and CFR, complete with all necessary export documentation. For inquiries, please contact us at +91-86550-39959, reach out via WhatsApp at wa.me/+918655039959, or email us at sales@ferrofittings.com.
Trusted manufacturer & exporter of Flanges, Pipe Fittings and Valves in 30+ countries.
1–4 weeks depending on size, grade & quantity.
Urgent and bulk orders handled efficiently.FOB, CIF, CFR, EXW, DDP (Incoterms 2020).
Door-to-port and door-to-door delivery available.Sea Freight / Air Cargo / Express Courier.
Complete export documentation & tracking support.Trusted by EPC contractors, procurement teams, and global industrial buyers across multiple countries for certified supply and reliable delivery.
Direct supply with bulk stock availability to reduce your overall project cost.
ISO 9001, ISO 14001, ISO 45001, PED certified with full test certificates.
Safe, sea-worthy packaging ensuring damage-free international delivery.
Selecting the right partner for ASTM A182 F91 Flanges is critical for ensuring product quality, long-term performance, and successful project execution. As a trusted manufacturer and exporter, Ferro Fittings and Alloys delivers high-quality materials meeting international standards and global industry requirements.
Understand the key differences between local suppliers, trading companies, and professional manufacturers & exporters like Ferro Fittings and Alloys.
| Evaluation Factor | Small Local Suppliers | Trading Companies | Ferro Fittings and Alloys |
|---|---|---|---|
| Manufacturing Control | Limited or outsourced production | Dependent on third-party mills | Direct manufacturing with strict quality control |
| Standards Compliance | Basic or local standards | Varies depending on supplier | ASTM, ASME, ANSI, EN, ISO certified products |
| Inspection & Certification | Limited documentation | Inconsistent certification | MTC, TPI, and full export documentation provided |
| Export Capability | Mostly domestic supply | Moderate export handling | Global exports with complete logistics support |
| Delivery Reliability | Uncertain timelines | Depends on sourcing chain | Consistent lead times with ready stock availability |
| Project Risk Level | High | Medium | Low |
| Product | Composition | Standard | Application |
|---|---|---|---|
| ASTM A182 F91 Flanges | Cr: 8.0-9.5%, Mo: 0.9-1.2%, C: 0.05-0.15%, Si: ≤0.5%, Mn: ≤1.0% | ASTM A182, ASME SA-182 | Used in high-temperature applications, including power generation and petrochemical industries |
| ASTM A182 F91 Flanges | Cr: 8.0-9.5%, Mo: 0.9-1.2%, C: 0.05-0.15%, Si: ≤0.5%, Mn: ≤1.0% | ASTM A182, ASME SA-182 | Suitable for applications requiring high strength and resistance to oxidation |
| ASTM A182 F91 Flanges | Cr: 8.0-9.5%, Mo: 0.9-1.2%, C: 0.05-0.15%, Si: ≤0.5%, Mn: ≤1.0% | ASTM A182, ASME SA-182 | Ideal for use in high-pressure systems and heat exchangers |
Ferro Fittings and Alloys offers high-quality ASTM A182 F91 Flanges, manufactured in compliance with international standards such as ASTM, ASME, and EN. Our flanges are designed for high-temperature and high-pressure applications, ensuring durability and reliability in critical environments. With ISO 9001:2015 certification and comprehensive in-house testing including PMI, Hardness, and Hydrostatic tests, we guarantee the performance of our products. Stock is readily available, and we can accommodate urgent orders with lead times of just 2-4 weeks. Contact us for a quick quote or request a free sample MTC today!
| Material | ASTM A182 F91 |
|---|---|
| Grades | F91 |
| Standard | ASTM A182 |
| Size Range | 1/2" to 24" |
| Pressure Rating | Class 150 to Class 2500 |
| Surface Finish | Machine Finish |
| End Connection | Weld Neck, Slip-On, Blind, Socket Weld |
| Form | Flange |
| Grade / UNS | Common Name | Key Feature | Typical Application |
|---|---|---|---|
| F91 / UNS K92460 | Alloy Steel | High strength and excellent oxidation resistance | Power generation, petrochemical, and chemical processing |
| F91 / UNS K92460 | Alloy Steel | Good weldability and fabricability | High-temperature applications, such as superheaters and reheaters |
| F91 / UNS K92460 | Alloy Steel | Resistant to creep deformation | Steam piping systems in power plants |
| F91 / UNS K92460 | Alloy Steel | Excellent mechanical properties at elevated temperatures | High-pressure applications in the oil and gas industry |
| F91 / UNS K92460 | Alloy Steel | Suitable for high-temperature service up to 1000°F (540°C) | Heat exchangers and pressure vessels |
| Size / DN | Pressure Class | Wall Thickness | Length |
|---|---|---|---|
| 1/2" | 150 | 0.109" | 5.00" |
| 3/4" | 150 | 0.113" | 5.00" |
| 1" | 150 | 0.133" | 5.00" |
| 1-1/2" | 150 | 0.145" | 5.00" |
| 2" | 150 | 0.154" | 5.00" |
| 3" | 150 | 0.216" | 5.00" |
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.08 | 0.12 |
| Silicon (Si) | 0.20 | 0.50 |
| Manganese (Mn) | 0.50 | 1.00 |
| Chromium (Cr) | 8.00 | 9.50 |
| Molybdenum (Mo) | 0.80 | 1.10 |
| Nickel (Ni) | 0.60 | 1.00 |
| Niobium (Nb) | 0.05 | 0.10 |
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Density | 7.8 g/cm³ | 0.282 lb/in³ |
| Melting Point | 1425 - 1540 °C | 2600 - 2800 °F |
| Specific Heat | 0.49 J/g·K | 0.12 BTU/lb·°F |
| Thermal Conductivity | 25.4 W/m·K | 17.6 BTU·in/hr·ft²·°F |
| Electrical Resistivity | 0.0000010 Ω·m | 0.0000001 Ω·in |
| Standard | Grade | UNS | Werkstoff Nr. | BS |
|---|---|---|---|---|
| ASTM | A182 F91 | S50400 | 1.4903 | BS 1501-224 Gr. 16 |
| ASME | SA182 F91 | S50400 | 1.4903 | BS 1501-224 Gr. 16 |
| EN | EN 10028-2 | 1.4903 | 1.4903 | BS 1501-224 Gr. 16 |
The raw materials for ASTM A182 F91 flanges are procured from certified suppliers and undergo stringent inspection to ensure compliance with ASTM A182 and other relevant standards. Each batch is subjected to Positive Material Identification (PMI) to verify the chemical composition and ensure it meets the specified requirements for grade F91, which is a high-performance alloy steel designed for high-temperature applications.
The forming process for ASTM A182 F91 flanges includes hot forging and machining, adhering to ASME and ANSI standards. The flanges are produced in various sizes and pressure classes, including 150#, 300#, and 600# ratings. Typical dimensions range from 1” to 24” in diameter, with custom sizes available upon request. Precision machining ensures that all dimensions and tolerances meet the strict guidelines set forth by relevant standards, ensuring a perfect fit for your piping systems.
| Process | Temperature (°C) | Medium | Purpose |
|---|---|---|---|
| Annealing | 750-800 | Air | To relieve stresses and improve ductility |
| Quenching & Tempering | 1050-1100 | Water/Oil | To enhance strength and toughness |
Quality assurance is paramount at Ferro Fittings and Alloys. Each batch of ASTM A182 F91 flanges undergoes rigorous testing, including Hydrostatic Testing, Hardness Testing, and Impact Testing (Charpy). We provide Material Test Certificates (MTC) compliant with EN 10204 3.1 / 3.2, ensuring that all products meet international standards. With ISO 9001:2015 certification, clients can trust in the quality and reliability of our products. Contact us for a quick quote or request a free sample MTC for your review.
| Grade | Size / Dimension | Price (USD/Kg) | Price (INR/Kg) |
|---|---|---|---|
| ASTM A182 F91 | 1/2" (15 mm) | $4.50 | ₹370 |
| ASTM A182 F91 | 2" (50 mm) | $4.80 | ₹395 |
| ASTM A182 F91 | 6" (150 mm) | $5.20 | ₹430 |
| ASTM A182 F91 | 12" (300 mm) | $6.00 | ₹495 |
Note: Prices are indicative and subject to change based on quantity, raw material costs, and delivery terms. Contact us for the latest quotation.
Our multiple locations and strong logistics network make it easy for customers across India to source ASTM A182 F91 Flanges from Ferro Fittings and Alloys. Contact us for prompt delivery at competitive prices.
Ferro Fittings and Alloys exports ASTM A182 F91 Flanges to 50+ countries worldwide. We handle all export documentation, sea-worthy packaging, and logistics to ensure on-time, damage-free delivery anywhere in the world.
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Ferro Fittings and Alloys is a leading ISO 9001:2015 certified manufacturer, supplier, and exporter of high-quality pipe fittings, valves, flanges, round bars, sheets, plates, pipes, tubes, and expansion bellows. Based in Mumbai, India, we serve industrial sectors including oil & gas, petrochemical, power generation, pharmaceuticals, marine, and construction.
We supply a comprehensive range of grades — Stainless Steel, Duplex & Super Duplex, Carbon Steel, Alloy Steel, Inconel, Hastelloy, Monel, Titanium, Nickel, and Nimonic Alloys — to customers in 50+ countries. Our products are manufactured as per ASTM, ASME, ANSI, MSS, BS, DIN, and EN standards with EN 10204 3.1/3.2 Mill Test Certificates.
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