Alloy Steel F91 Forged Fittings Manufacturer and Supplier in Chennai, India
Based in Chennai, India, we proudly stand as a top manufacturer and supplier of Alloy Steel F91 Forged Fittings. Our products are designed to deliver high-strength, heat-resistant solutions tailored for high-pressure piping systems, particularly in the power generation and petrochemical sectors. ASTM A182 F91 is a specially modified 9Cr-1Mo alloy steel, enhanced with vanadium and niobium, crafted specifically for ultra-supercritical applications. We ensure our forged fittings meet international standards like ASME B16.11, providing exceptional mechanical strength, corrosion resistance, and reliable performance even at elevated temperatures. These fittings find their place in boilers, steam lines, heat exchangers, and high-efficiency thermal systems.
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Alloy Steel F91 Forged Fittings Specification
| Specification : | ASTM A182 F91 Forged Fittings |
|---|---|
| Size | Threaded Fittings = ½” – 4” |
| Pressure Rating | Threaded Fittings = Class 2000, Class 3000, Class 6000 |
| Type Of Pipe systems | 45 Deg Elbow, Equal tee, Full Coupling, Reducing Tee, 90 Deg Elbow, Half Coupling, Street Elbow, Bull Plug, Boss, Union (Male/Female), Lateral Outlet, 45 Lateral Tee, Equal Cross, Pipe Cap, Branch Outlets, Swage Nipple. |
| Thread Connections | ASME B16.11 (Socket Welding and Threaded) Fittings, MSS-SP-83 (Class Unions) Fittings, ASME B16.3 (Malleable Iron Fittings) Fittings, ASME B16.4 ( Gray Iron Fittings) Fittings, ASME B16.39 (Malleable Iron Unions) Fittings, ASME B16.34 (Valves — Flanged) Fittings, ASME B16.39 (Malleable Iron Pipe Unions Fittings, 150#, 250#, Or 300#). |
| Standards | ASME B16.11 (American Standard), Bs3799, MSS SP 79, JIS B2302, MSS-SP-97 (Threadolet), MSS-SP-83 (Union), ASME B36.19 (Nipple) |
| Types Of Thread | NPT Fittings, BSPP Fittings, BSPT Fittings, PF Fittings, PT Fittings, MPT Fittings |
| Applications | Oil and Gas Chemical Power station Water Pipeline Noncritical Applications Fire Protection |
| Advantages Of | Simple Usage Easy installation Economic as cheaper |
Our Alloy Steel F91 Forged Fittings consist of around 9% chromium, 1% molybdenum, 0.25% vanadium, along with trace amounts of niobium and nitrogen. This unique composition grants them impressive tensile strength (620–760 MPa), yield strength (≥415 MPa), and remarkable creep resistance. We offer these fittings in pressure ratings of Class 2000, 3000, and 6000, with a variety of socket weld and threaded types, including elbows, tees, unions, couplings, and crosses—ensuring secure, leak-proof connections even in high-stress environments.
Alloy Steel F91 Forged Fittings Chemical Compostion
| Gr | C | Mn | Si | S | P | Cr | Mo |
| ASTM A182 F91 Forged Fittings | 0.15 | 0.3 – 0.6 | 0.5 | 0.03 | 0.03 | 4 – 6 | 0.044 – 0.65 |
Alloy Steel F91 Forged Fittings Mechanical Properties
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| ASTM A182 F91 Forged Fittings | 275 | 485 | 20 |
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Largest Alloy Steel F91 Forged Fittings Supplier in Chennai, India
Meet Fittings is a leading supplier of Alloy Steel F91 Forged Fittings in Chennai, India. We offer an extensive range of Alloy Steel F91 Forged Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
If You Are Looking To Buy High Quality
Why Choose Alloy Steel F91 Forged Fittings from Meet Fittings?
Choose Alloy Steel F91 Forged Fittings from Meet Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
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Alloy Steel F91 Forged Fittings offer numerous advantages, including exceptional strength, making them suitable for high-pressure and high-temperature applications. Their excellent corrosion resistance and thermal stability ensure long-term durability in harsh environments. With superior creep resistance and oxidation protection, they perform reliably in critical industrial systems. These fittings also offer excellent weldability, machinability, and ease of installation. Their resistance to fatigue and wear under extreme conditions ensures minimal maintenance and downtime, making them a preferred choice for industries such as power generation, petrochemical, and aerospace, where performance and safety are paramount.
Types of Alloy Steel F91 Forged Fittings
Are Custom Sizes Available for Alloy Steel F91 Forged Fittings?
Yes, custom sizes for Alloy Steel F91 Forged Fittings are available at Meet Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@meetfitings.co.in.
Alloy Steel F91 Forged Fittings Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. | Trade Name |
| ASTM A182 F91 Forged Fittings | K90901 | 1.4903 | 9Cr-1Mo-V |
Alloy Steel F91 Forged Fittings Dimensions
| DN | NPS | Center to End NPT Elbow, NPT Tee, NPT Cross A | Center to End 45 Deg Elbow C | O.D. of Band H | Min. Wall Thick. G | Length of Thread. Minimum (1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | B | L2 | ||
| 6 | 1/8 | 21 | 21 | 25 | 17 | 17 | 19 | 22 | 22 | 25 | 3.18 | 3.18 | 6.35 | 6.4 | 6.7 |
| 8 | 1/4 | 21 | 25 | 28 | 17 | 19 | 22 | 22 | 25 | 33 | 3.18 | 3.30 | 6.60 | 8.1 | 10.2 |
| 10 | 3/8 | 25 | 28 | 33 | 19 | 22 | 25 | 25 | 33 | 38 | 3.18 | 3.51 | 6.98 | 9.1 | 10.4 |
| 15 | 1/2 | 28 | 33 | 38 | 22 | 25 | 28 | 33 | 38 | 46 | 3.18 | 4.09 | 8.15 | 10.9 | 13.6 |
| 20 | 3/4 | 33 | 38 | 44 | 25 | 28 | 33 | 38 | 46 | 56 | 3.18 | 4.32 | 8.53 | 12.7 | 13.9 |
| 25 | 1 | 38 | 44 | 51 | 28 | 33 | 35 | 46 | 56 | 62 | 3.68 | 4.98 | 9.93 | 14.7 | 17.3 |
| 32 | 1-1/4 | 44 | 51 | 60 | 33 | 35 | 43 | 56 | 62 | 75 | 3.89 | 5.28 | 10.59 | 17.0 | 18.0 |
| 40 | 1-1/2 | 51 | 60 | 64 | 35 | 43 | 44 | 62 | 75 | 84 | 4.01 | 5.56 | 11.07 | 17.8 | 18.4 |
| 50 | 2 | 60 | 64 | 83 | 43 | 44 | 52 | 75 | 86 | 102 | 4.27 | 7.14 | 12.09 | 19.0 | 19.2 |
| 65 | 2-1/2 | 76 | 83 | 95 | 52 | 52 | 64 | 92 | 102 | 121 | 5.61 | 7.65 | 15.29 | 23.6 | 28.9 |
| 85 | 3 | 86 | 95 | 106 | 64 | 64 | 79 | 109 | 121 | 146 | 5.99 | 8.84 | 16.64 | 25.9 | 30.5 |
| 100 | 4 | 106 | 114 | 114 | 79 | 79 | 79 | 146 | 152 | 152 | 6.55 | 11.18 | 18.67 | 27.7 | 33.0 |
Alloy Steel F91 Forged Fittings Schedule Chart
| Normal Pipe Size | A | B | QTY | Weight In KG |
|---|---|---|---|---|
| ¼ | 0.81 | 0.88 | 160 | 0.20 |
| ⁄ | 0.97 | 1.00 | 130 | 0.26 |
| ½ | 1.12 | 1.31 | 100 | 0.57 |
| ¾ | 1.31 | 1.5 | 75 | 0.71 |
| 1 | 1.5 | 1.81 | 40 | 1.08 |
| 1 ¼ | 1.75 | 2.19 | 25 | 1.68 |
| 1 ½ | 2.00 | 2.44 | 18 | 2.38 |
| 2 | 2.38 | 2.97 | 10 | 3.55 |
| 2 ½ | 3.00 | 3.62 | 4 | 6.22 |
| 3 | 3.38 | 4.31 | 2 | 10.36 |
| 4 | 4.19 | 5.75 | 1 | 23.91 |
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Application Industry of Alloy Steel F91 Forged Fittings
These fittings are extensively utilized in superheaters, reheaters, turbine piping, and high-pressure steam systems within thermal and nuclear power plants. They maintain their structural integrity under prolonged exposure to high temperatures (up to 650°C) and fluctuating pressures. Their outstanding resistance to thermal fatigue, oxidation, and corrosion makes them ideal for mission-critical operations. With excellent weldability, fatigue strength, and a long service life, F91 forged fittings are a reliable choice for piping systems that require top-notch performance under extreme conditions.
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