Nguyen Fittings and Plates is a reliable source for Alloy Steel F9 Forged Fittings, recognized for their strength and performance in high-pressure and high-temperature services. Manufactured according to ASTM A182 F9 and ASME B16.11 standards, these forged socket weld and threaded fittings deliver reliable performance in boiler, power generation, and petrochemical piping systems. With accurate dimensions and improved metallurgical properties, F9 forged fittings ensure secure and leak-proof connections in demanding environments, such as superheaters and reheat lines.
| Specification : | ASTM A182 F9 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, 150#, 250#, Or 300#) Fittings. |
| 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 |
| Applications | Oil and Gas Chemical Power station Water Pipeline Noncritical Applications Fire Protection |
| Advantages Of | Simple Usage Easy installation Economic as cheaper |
Alloy Steel F9 contains 9% chromium, 1% molybdenum, and a base of carbon steel. It shows tensile strength around 585–760 MPa, yield strength ≥415 MPa, and excellent resistance to creep rupture at high temperatures. The molybdenum enhances creep strength, while chromium boosts oxidation and corrosion resistance. F9 offers good weldability, thermal stability, and strong mechanical performance under pressure, making it suitable for piping components that face frequent thermal cycles.
| Gr | C | Mn | Si | S | P | Cr | Mo |
| ASTM A182 F9 Forged Fittings | 0.15 | 0.3 – 0.6 | 0.5 – 1 | 0.03 | 0.03 | 8 – 10 | 0.9 – 1.1 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| ASTM A182 F9 Forged Fittings | 380 | 585 | 20 |
Nguyen Fittings is a leading supplier of Alloy Steel F9 Forged Fittings in Da Nang, Vietnam. We offer an extensive range of Alloy Steel F9 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.
Choose Alloy Steel F9 Forged Fittings from Nguyen Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Alloy Steel F9 Forged Fittings offer numerous advantages, including exceptional strength, high-temperature stability, and corrosion resistance, making them ideal for demanding industrial applications. Their chromium and molybdenum content enhances their ability to withstand harsh environments, including high-pressure and high-temperature conditions. The forged construction ensures high mechanical strength and durability, providing leak-proof connections and long service life. These fittings also offer resistance to oxidation and wear, reducing maintenance costs. Alloy Steel F9 Forged Fittings are essential for industries like oil, gas, petrochemical, and power generation, ensuring reliable performance in critical systems.
Yes, custom sizes for Alloy Steel F9 Forged Fittings are available at Nguyen Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@nguyenfittings.com.
| STANDARD | UNS | WERKSTOFF NR. | Trade Name |
| ASTM A182 F9 Forged Fittings | K90941 | 1.7386 | 9Cr-1Mo |
| 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 |
| 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 |
Alloy Steel F9 forged fittings are often used in high-pressure steam lines, boiler systems, thermal power plants, industrial heaters, and refinery operations. They fit well in heat exchangers, reactor units, and high-temperature pipelines where strength, pressure handling, and thermal fatigue resistance are essential. F9 forged fittings ensure safe and efficient operation in oil and gas, chemical industries, and energy production facilities, reducing failure risks and extending the lifespan of pressurized systems exposed to heat, stress, and corrosive media.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.








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