Alloy Steel F91 Forged Fittings are top-notch piping components crafted from a chromium-molybdenum alloy, specifically designed to handle high temperatures and pressures. These fittings are made through meticulous forging processes, ensuring they boast exceptional strength, a consistent grain structure, and impressive dimensional accuracy. F91 forged fittings meet international standards and are highly regarded for their reliability, long lifespan, and ability to withstand extreme conditions in critical industrial applications.
Alloy Steel F91 Forged Fittings consist of mainly chromium (8-9%), molybdenum (0.85-1.05%), and carbon (0.05-0.15%), and minor quantities of vanadium, silicon, and manganese. They contain these ingredients that increase their strength, hardness, and corrosion resistance. Their mechanical properties consist of tensile strength of 655 MPa (95 ksi), yield strength of 415 MPa (60 ksi), and elongation of 20%. These fittings also have very good high-temperature and pressure resistance, and thus are suitable for use in industries such as power plants, petrochemical, and oil & gas.
Designation : ASTM / ASME A182 GR F91 |
Dimensions : ASME 16.11, MSS SP-79,83,95,97,BS 3799 |
Range : 1/8” – 4” (DN6-DN100) |
Types : Socket Weld Fittings, Screwed-Threaded Fittings |
Class : 2000LBS, 3000LBS, 6000LBS |
Form : Elbow 45 Deg & 90 Deg, Tee, Cross, Cap, Full Coupling, Half Coupling, Union, Bushing, Swage Nipple, Plug |
| Grade | C | Mn | Si | S | P | Cr | Mo |
| A182 F91 | 0.08 – 0.12 | 0.3 – 0.6 | 0.5 | 0.01 | 0.02 | 8.5 – 9.5 | 0.85 – 1.05 |
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation % |
| A182 F91 | 415 | 585 | 20 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The chemical makeup of Alloy Steel F91 features carefully controlled levels of chromium, molybdenum, vanadium, carbon, manganese, and silicon. This unique blend gives the alloy remarkable creep resistance, high tensile strength, and enhanced hardness. On the mechanical side, F91 forged fittings deliver solid impact strength, excellent yield properties, and outstanding resistance to oxidation and thermal fatigue. Heat treatment processes further boost their toughness and structural stability, even under continuous stress.
You’ll find Alloy Steel F91 Forged Fittings widely used in power plants, the oil and gas sector, petrochemical facilities, refineries, and high-pressure boiler systems. They’re perfect for applications that involve superheated steam, high-temperature fluids, and corrosive environments. Their robust performance also makes them a great fit for thermal power stations, chemical processing plants, and industrial piping systems where safety, efficiency, and durability are absolutely essential.
Chetak Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hyderabad, India.
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